doc1-دیدگاههای عمومی سوپر آلیاژها
download 
Report Transcription
1-دیدگاههای عمومی سوپر آلیاژها
In the Name of God New and Advanced Materials International Congress (NAMIC 2012) May 30-31, 2012 Majlesi Branch, Islamic Azad University Isfahan-Iran ABSTRACTS Editor: Professor S.K. Sadrnezhaad Welcome Message Thank God to provide the opportunity for me to be the host of you scientists, professors, artisans, students, and researchers. Today the potentials of Azad University Complex have reached a state to be able to act as the host for large scale scientific international conferences. And the Islamic Azad University of Majlesi is not an exception in this regard. Therefore, in recent years, by improving and strengthening its scientific and research dimensions in technical engineering fields, it has been able to be introduced as one of the scientific poles of the Islamic Republic of Iran. The present conference which is the first international one held is a place to introduce the latest findings of foreign and national researches on material engineering and metallurgy in the field of new materials (nano, bio, magnetic, …). Undoubtedly the outcomes of this conference can dramatically improve the national and international level of knowledge in its area. Hopefully at the end of this two- day conference, we shall witness the positive impacts of this scientific event. In the end, I would like to appreciate the supporters of the conference and all my colleagues’ inexhaustible efforts in Majlesi Azad University each of which had an important role to hold this scientific gathering. Mohammadhasan Gheisarian Chancellor, Majlesi Branch, Islamic Azad University, Iran Foreword The objective of NAMIC 2012 is to provide a platform for academicians, researchers and technical experts to exchange views, findings, ideas and experiences for assessment of the state of the art and the future needs of the modern society to the substances classifiable as nano, bio, smart, foamy, porous, functional, composite, amorphous, precious, magnetic, thin layer, super-conducting and semiconducting materials. These substances are to help the human race by serving in many different applications like nanosensors, NEMs, MEMs, nanocatalysts, nanoelectronic materials, expert systems, intelligent structures, energy conservation, environmental protection, fuel cell, solar cell, optoelectronic devices and bioengineering systems. The focus of the congress is on correlation of reactivity, durability, functionality, stability, strength and feasibility to molecular structure and morphology. From around 250 full-text manuscripts received, after careful refereeing, 130 papers were selected for oral and poster presentation. We are grateful to all the authors and leading researchers for their active participation and valued contributions. Sincere thanks to the workshop instructors for sharing their knowledge and experience with their attendees. We would like to acknowledge the efforts of all organizers, sponsors, assistants, reviewers, faculty members, students and NAMIC personnel for their fine efforts and perseverance. We appreciate all reputable guests and prominent scholars who accepted our invitation and travelled a long distance to participate in this occasion. We feel privileged of having many outstanding delegates from Iran and abroad. We wish to thank the president of Majlesi branch of the Azad University for his continued support and the scientific board, the organizing committee and the managerial team of the congress for their superb assistance and dedication that made this congress a success. Professor S.K. Sadrnezhaad Conference Chairman Distinguished National Professor 1st New and Advanced Materials International Congress NAMIC2012 -May30-31 Organizing Committee Mohammadhasan Gheisarian Dr. Mohsen Keyvanfard Mohsen Heydari Prof. S.K. Sadrnezhaad M. Khodaei Chancellor, Majlesi Branch, Islamic Azad University, Iran Vice-President in Research of Majlesi Branch Islamic Azad University, Iran Vice-President in Administration of Majlesi Branch Islamic Azad University, Iran Congress Scientific Chair Sharif University of Technology , Iran Conference Executive Chair, Majlesi Branch Islamic Azad University, Iran Executive Committee M. Khodaei Conference Executive Chair Dr. Kamran Amini Member of Conference ExecutiveCommittee Seyed Rasoul Fallahian Member of Conference ExecutiveCommittee Abbas Saadat Member of Conference ExecutiveCommittee Dr. M.S. Bozorgtabar Member of Conference ExecutiveCommittee Mahmood Mahmoodi M. Golozar Saeid Sanayei Member of Conference ExecutiveCommittee Member of Conference ExecutiveCommittee Hamid Nazemi Member of Conference ExecutiveCommittee Seyed Mohsen Mousavi Member of Conference ExecutiveCommittee Masoud Yousefian Member of Conference ExecutiveCommittee Abbas Shabanian Member of Conference ExecutiveCommittee MasoudHakimian Member of Conference ExecutiveCommittee Masoud Golnari Member of Conference ExecutiveCommittee Amirmasoud Mousavi Member of Conference ExecutiveCommittee Masoud Rafatnia Member of Conference ExecutiveCommittee 1st New and Advanced Materials International Congress NAMIC2012 -May30-31 Support Team Hamid Reza Vahdat Poor Manager of Arian Pars Engineering Co. Reza Talebian Ameneh Sharifi Support Committee Support Committee Mona Mohammadi Rad Support Committee Zohreh Abdelahi Support Committee Zahra Aarabi Support Committee Mohammad Fahimi Najm Reviewers’ Comments Assistance Mojib Saei Reviewers Software Assistance Scientific Advisory Board Professor S.K. Sadrnezhaad Sharif University of Technology, Iran Professor Ahmad Saatchi Isfahan University of Technology , Iran Professor Mohammad Hossein Fathi Isfahan University of Technology , Iran Dr. Mohammad Hossein Enayati Isfahan University of Technology , Iran Dr. Seyed Farshid Kashani Bozorg University of Tehran, Iran Professor Ali Haerian Ardakani FUM, Iran Professor John Jonas McGill, Canada Dr. Adams Stefan NUS, Singapore Professor Witold Daniel Dobrowolski Dr. Ouyang Jianyong Institute of Physics, Polish Academy of Sciences, Poland NUS, Singapore Professor Pu Chen Waterloo Institute for nanotechnology, Canada Professor Mark Hoffman UNSW, Australia Professor Yoshihiro ITO RIKEN research center, Japan Professor Sergey V. Gaponenko Institute of Physics of the National Academy of Sciences of Belarus 1st New and Advanced Materials International Congress NAMIC2012 -May30-31 Reviewers Committee Dr. Ali Ashrafi ShahidChamran University of Ahvaz, Iran Prof. Fakhroddin Ashrafizadeh Isfahan University of Technology, Iran Dr. Hosein Monajatizadeh Najafabad Branch, Islamic Azad University, Iran Dr. Hosein Paydar Majlesi Branch, Islamic Azad University, Iran Dr. Kamran Amini Majlesi Branch, Islamic Azad University, Iran Abbas Saadat Majlesi Branch, Islamic Azad University, Iran Dr. MaryamossadatBozorgtabar Majlesi Branch, Islamic Azad University, Iran Dr. Safarkhanian Majlesi Branch, Islamic Azad University, Iran Dr. Mohammad Reza PouyaMehr Majlesi Branch, Islamic Azad University, Iran Dr. Morteza Zand Rahimi ShahidBahonar University of Kerman, Iran Dr. Hamid Reza Ebrahimi Majlesi Branch, Islamic Azad University, Iran Professor Mohammad Hossein Fathi Isfahan University of Technology, Iran Dr. Mohammad Hossein Enayati Isfahan University of Technology, Iran Dr. F. Karimzadeh Isfahan University of Technology, Iran Dr. Rafiei Nia Isfahan University, Iran Professor Ali Haerian Ardakani FUM, Iran Professor S.K. Sadrnezhaad Sharif University of Technology, Iran Professor Witold Daniel Dobrowolski Institute of Physics, Polish Academy of Sciences, Poland Dr. Ouyang Jianyong NUS, Singapore Professor Pu Chen Waterloo Institute for nanotechnology, Canada Professor Mark Hoffman UNSW, Australia Professor Yoshihiro ITO RIKEN research center, Japan Professor Sergey V. Gaponenko Institute of Physics of the National Academy of Sciences of Belarus Dr. Jamak Nourmohammadi Materials and Energy Research Center, Iran 1st New and Advanced Materials International Congress NAMIC2012 -May30-31 Professor Ali Karimi Taheri Sharif University of Technology, Iran Dr. Ruholah Tavakoli Sharif University of Technology, Iran Professor S.H.R. Maddah Hoseini Sharif University of Technology, Iran Dr. Mohamad Reza Vaezi Materials and Energy Research Center, Iran Dr. Mansureh Ganjali Materials and Energy Research Center, Iran Professor Parvin Abachi Sharif University of Technology, Iran Professor Reza Bagheri Sharif University of Technology, Iran Dr. Mohamad Reza Mohamadi Sharif University of Technology, Iran Dr. Jianyong Ouyang NUS, Singapore Fardin Nematzadeh Materials and Energy Research Center, Iran Yaser Bahari Sharif University of Technology, Iran st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 10330986 10330986 New materials 36 Optimization of Composite Rocket Launcher Using GA E mam H ossein U niversity A.R .N .O skouie M .R .M ohammadi A.H .R .M azyak M .R .S .Barzegar 10531586 10531586 Nano materials 37 Study of Ultrasonic Technology to Create Nano-Structured Materials Islamic Azad U niversity, N ajafabad Branch A. R . Abbasi A. E mamikhah 10732187 10732187 Bio materials 38 Biodegradable Magnesium–Fluorapatite Metal Matrix Nanocomposite with Improved Corrosion Resistance for Biomedical Applications Isfahan U niversity of Technology M . R azavi M .H . Fathi M . M eratian 11233687 11233687 Nano materials 39 Synthesis of Al O -SiC-MgO Nanocomposites via Hot-pressing for Improving Mechanical Properties Iran U niversity of S cience and Technology Jalil P ourasad 40 H amid R eza Baharvandi N aser E hsani Alireza R ahimnezhad Y azdi H osein Abdizadeh 12637887 12637887 Bio materials Effect of Anodizing Parameters on Surface Properties of Anodized Ti- Al- V Alloy for Biological Applications M alek- Ashtar U niversity Z. Jamebozorg 41 K. Zangene -madar M . M irjani S h. Seyydin 14443288 14443288 Nano materials Production of Nano-Structured Composites from Multilayered Al Pure( ) and AlMg( ) Al alloys By ARB Process and Evaluation Microstructure and Mechanical Properties Isfahan U niverity of Technology S . Akhavan A. Tahvilian A. S aghayannejad M . Toroghinejad 11 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 166498823 166498823 New materials 42 Effect of Mechanical Activation and Additive on Aullite Formation M aterials and E nergy R esearch C enter Arezoo S eifollahzadeh Touraj E badzadeh M asoud Alizadeh 189567828 189567828 Bio materials 43 nhancing Glass Inomer Cement Properties by HA-YSZ Nanocomposite : a Mixure Design Experiment D epartment of material engine., S cience and R esearch Branch, Azad university, Tehran, Iran S . S alehi G h. R ajabzadeh 44 A. N emati M . S olati H ashtjin 195585828 195585828 Bio materials Investigation of Non-isothermal Kinetics of Fluorapatite Synthesis via Solid State Reaction Islamic Azad U niversity, N ajafabad branch S .R ahpeyma 45 R . Ebrahimi-Kahrizsangi 205615828 205615828 Nano materials Synthesis and Characteristics of Copper Nanoparticles Using Laser Ablation M aterials and E nergy R esearch C entre M onireh G anjali 46 206618828 206618828 Nano materials Synthesis of Au -Cu Bimetal Nanoalloy by Dual Prosedure M aterials and Energy R esearch C entre M ansoureh G anjali 47 M onireh G anjali 209627829 209627829 Nano materials nthesis and Characterization of Nanostructure Intermetallic Compounds in Ni Al System Using Mechanical Alloying -Ti - Isfahan U niversity of Technology H esam R ezvani S ichani 48 M ehdi S alehi H osein E dris M ansoor Toorani Farani 210630829 210630829 Nano materials Synthesis of Ni Ti nanostructure intermetallic compound in Ni mechanical alloying Isfahan U niversity of Technology M ansoor Toorani Farani M ehdi S alehi H osein E dris 12 H esam R ezvani S ichani -Ti system by st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 219657829 219657829 New materials 49 Effect of Fe O addition on crystallization of SiO -Na O-CaO system glasses Iran U niversity of S cience and Technology P . S hahsavari B. E ftekhari Y ekta V .K. M arghussian N . S olati 221663829 221663829 Bio materials 50 Surface modification of Polyurethane as a Novel Skin Dress Amirkabir U niversity of Technology S . A. Ayati N ajafabadi H . Keshvari Y . G anji 222666829 222666829 Nano materials 51 High temperature oxidation behavior of graphite coated by dual layer of nano-SiC/SiC Iran U niversity of S cience & Technology H . Jafari N . E hsani 52 S .A. Khalifeh-S oltani M . Jalaly 246738829 246738829 New materials Metal matrix composites aluminium and fiber carbon U niversity of Imam khomeini International, Q azvin Farzaneh vali ghazvini 53 Arman sedghi 264792830 264792830 Functional materials Optimisation of Fibre Orientations in Composite Material by Applying Simulating Annealing and Genetic Algorithm Methods Bournemouth U niversity, Bournemouth, U K R asoul Khandan 54 S iamak N oroozi P hilip S ewell M ehran Koohgilani H amid R eza H ooshyarmanesh 27381994 27381994 Functional materials Effect of Electrical Parameters on Plasma Electrolytic Oxidation Coatings of Alloy Al U niversity of W estern O ntario, C anada V . D ehnavi 55 B. Luan X .Y . Liu S . R ohani D . W . Shoesmith 27983799 27983799 Nano materials Nano-crystalline Nickel Coatings Electrodeposited on Plain Carbon Steel in Watts-Type Bath With and Without Additives Isfahan U niversity of Technology Fereshteh M allakpour M aryam G olozar Zahra D adkhah 13 M ohammad Ali G olozar Keyvan R aeissi st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 283849916 283849916 New materials 56 Study on MR Nanocomposites to Develop a Miniature Gripper Tarbiat M odares U niversity Aref N aimzad Y ousef H ojjat M ojtaba G hodsi 294882918 294882918 Nano materials 57 Highly Selective Oxidation of Alcohols Using Nano-Sized NiO/TiO -ZrO Heterogeneous Catalyst as a Novel Islamic Azad U niversity, S hahreza Branch, S hahreza, Isfahan, Iran A.R . M assah 58 M . Azadi Z. S hams ghahfarokhi 300900919 300900919 New materials Properties of lightweight geopolymer with waste ashes and palm oil clinker aggregates Islamic Azad university. Saveh branch M ohammad Khanzadeh 59 G holamreza Khalaj Ali N azari Shadi R iahi 3099271012 3099271012 Nano materials Investigation the effect of Nanohydroxyapatite on Tensile Properties of PHB/nHA Composite Scaffold Used for Bone Tissue Engineering IAU , majlesi branch A. S aadat A. behnamghader 60 Semi conductors S . karbasi 3109301012 3109301012 Synthesis and Characterization of Nano ZnO Fibers by Electrospining Method Islamic Azad U niversity Behbahan Branch M .Kavosh 61 H . M oallemian H . molaei A. Ighan A. M omtazan M .E . D ehdashti 3189541018 3189541018 Nano materials ANTIBACTERIAL PROPERTIES OF AU-AG ALLOY NANOPARTICLES Iran M aterials and E nergy R esearch C enter N . S . Tabrizi 62 M . Tazikeh N . S hahgholi 3199571018 3199571018 Nano materials Synthesizing of nano-structure MgNi Y alloy by mechanical milling and heat treatment U niversity of Tehran L. C hitsaz Khoyi S h. R aygan 14 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 3209601018 3209601018 Functional materials 63 Effect of manufacturing process parameters on the microstructure and mechanical properties of FGHMs Islamic Azad U niversity - Islamshahr Branch N ima Khademian H abib Inanloo R eza G holamipour Ali Kaflou 3239691019 3239691019 Nano materials 64 Physical and Chemical properties of Solid Solutions Based on CuInSe -FeSe Azarbajan 3269781020 3269781020 Magnetic materials 65 Using Electric and Magnetic Fields in Electrospinning Method for Synthesis of Fe O Nanoparticles Doped on ZnO Nano Fibers Islamic Azad U niversity, Behbahan Branch M . Kavosh H . M oallemian A. Ighan M . D ehdashti 3299871020 3299871020 Nano materials 66 Synthesis and Characterization of Titanium Oxide Nanoparticles (TiO ) with Rutile Crystal Structure Islamic Azad U niversity, Behbahan Branch M . Kavosh H . M oallemian A. Ighan M . D ehdashti 3309901020 3309901020 Nano materials 67 Synthesis and Characterization of Cluster Nano-Flowers Zinc Oxide and Study Optical Properties islamic azad university behbahan branch M . Kavosh H . M oallemian A. M omtazan A. Ighan 33510051026 33510051026 Bio materials 68 M . D ehdashti Materials Nanointerfaces for Regenerative Medicine and Tissue Engineeering R IKE N Advanced S cience Institute Y oshihiro Ito 69 33710111027 33710111027 Bio materials Two-Step Sintering of Dense Nanostuctured Hydroxyapatite/Titania composite Isfahan U niversity of Technology Ali Farzin M ehdi Ahmadian M .H . Fathi 15 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 3391017111 3391017111 Nano materials 70 Carboxylated Styrene Butadiene Rubber – MWCNT Stress Relaxation Behavior of Nanocomposite Iran P olymer and P etrochemical Institute F.Abbasi sourki G h.Bakhshande M .Alimardani 3401020112 3401020112 Nano materials 71 An Efficient Study on Crystallization Behavior of Poly (ethylene terephthalate)/TiO Nanocomposites U niversity of Tehran M . Farhoodi S . M . M ousavi R . S otudeh-G harebagh Z. E mam-D jomeh Abdolrasul O romiehie 35410621117 35410621117 New materials 72 Formation Mechanism of TiCr Intemetallic by Calciothermic co-reduction Method Iran U niversity of S cience and Technology (IU S T) O . Bayat A. R . Khavandi 73 R . G hasemzadeh 36610981120 36610981120 Nano materials Effect of anodizing electrolyte temperature on Al-epoxy bonding strength Islamic Azad university, S outh Tehran Branch S . M ohagheghi 74 A. H atefi A. Kianvash 37111131123 37111131123 Nano materials Catalytic Activity of Machanochemically Prepared Strontium-Doped Nanostructural Lanthanum Manganite M aterials and Energy R esearch C enter H .Tamaddon 75 A.M aghsoudipour 37511251124 37511251124 Bio materials Construction and Stability of Glucose Biosensor Based on Carbon Past Electrode Modified with Colloidal Gold Nanoparticles Islamic Azad U niversity.S hahrood Branch N ahid H ossein Fakhrabadi Ali Asghar R ohani Afshin Farahbakhsh 16 S aeed S ohrabi st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 37711311125 37711311125 Semi conductors 76 Investigation of ring opening polymerization of octamethylcyclotetrasiloxane by Nanionic nanostructured polyaniline U niversity of Tabriz Leyla S hadi H oma G eibi Kazem D indar S afa Ali Akbar E ntezami 38311491127 38311491127 Nano materials 77 Fabrication of highly ordered gold nanorods film by thermal evaporation of gold into a porous anodic alumina Islamic Azad U niversity, S hiraz Branch Zahra S oltani M ohammad N oormohammadi Fahimeh Behzadi 38411521127 38411521127 New materials 78 Produce A Aluminum alloy foam by using silicone rubber granules Amirkabir U niversity of Technology R .P ourgholam 79 S .M .H .M irbagheri S .H .M irdamadi 38611581128 38611581128 Nano materials Evolution of microstructure texture for multilayered Al ( accumulative roll bonding process )/Al ( ) composites by Isfahan U niverity of Technology S . Akhavan 80 A. Tahvilian A. S aghayannejad M . Toroghinejad 38811641128 38811641128 New materials Meso Finite Element Modeling of Triaxial Braided Composites Amirkabir U niversity of Technology Arezu E mami-Khalkhali 81 H ossein H osseini-Toudeshky 39211761129 39211761129 Bio materials Bio-corrosion and Biocompatibility evalution of Ni-free Zr-based bulk metallic glasses Amirkabir U niversity of Technology Amin M onfared 82 S hahab Faghihi M ana N ovin 39411821129 39411821129 Nano materials Synthesis of polymerization thermosensitive PVA-g-NIPAAm U niversity of Tabriz M arziyeh Fathi Ali R eza Farajollahi Ali Akbar E ntezami 17 nanohydrogels by radiation st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 39511851129 39511851129 Bio materials 83 Novel Amphiphilic block copolymer of Poly (citric acid)-b-Poly (L-lactide)-b-Poly (citric acid) with ABA architecture: Synthesis, Characterization and Micellization U niversity of Tabriz H oma G heybi 84 Ali Akbar E ntezami 39611881130 39611881130 Nano materials The effect of La Sr CoO nanoparticles on nano electro mechanical systems by XRD, X-powder and SEM techniques Islamic Azad U niversity Fars S cience and R esearch branch N eda G horbanzadeh 85 Ali Bahari N ajmeh Araghi 39711911130 39711911130 Nano materials Synthesis and Characterization of zinc powder using reduction method by natural gas S ahand U niversity of Technology S .R ahimi.M 86 J.M oghaddam 39811941130 39811941130 Nano materials Growth and investigation of nanostructural properties of perovskite nano tubes by XRD, X-powder and SEM techniques Islamic Azad U niversity Fars S cience and R esearch branch S alileh Asadollahzadeh 87 Ali Bahari N ajmeh Araghi 39911971130 39911971130 New materials Microstructure Refining of a Cast TiAl alloy via Homogenizing and Post Heat-Treatment Processes Iran U niversity of S cience and Technology S iavash Zamani 88 H ekmat R azavizadeh M ohammad Jahazi 40012001130 40012001130 New materials The Effects of Chromium Addition on the Mechanical Properties of a Binary TiAl Alloy at Elevated Temperatures Iran U niversity of S cience and Technology S iavash Zamani H ekmat R azavizadeh M ohammad Jahazi 18 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 89 40112031130 40112031130 New materials he Effects of V and Cr Addition on the Deformation Mechanisms and Mechanical Behavior of a Binary TiAl Alloy Iran U niversity of S cience and Technology S iavash Zamani 90 H ekmat R azavizadeh M ohammad Jahazi 40212061130 40212061130 Nano materials Synergistic Effect of ZnO and Functionalized Carbon Nanotube on the Improvement of Filler Dispersion Iran polymer and petrochemical institute F.Abbasi sourki 91 M .Alimardani G .R .Bakhshandeh 40412121130 40412121130 Nano materials Surface analysis of polyvinyl chloride/kaolin nanocomposites Islamic Azad U niversity, S hahre R ey Branch M azeyar P arvinzadeh G ashti 92 H engameh Allahyary P ouya N asraei G homi 40512151130 40512151130 Nano materials Superabsorbent nanohydrogels of poly (N-isopropyl acrylamide –co-itaconic acid) grafted on starch: Synthesis and swelling studies U niversity of Tabriz Karim P ourjamal 93 M arziyeh Fathi R oghieh Alizadeh Ali Akbar E ntezami 4141242121 4141242121 Nano materials Synthesis and surface modification of core/shell quantum dots with PEG for biological detection and imaging S harif U niversity of Technology H adi O stadi 94 M ohamad. Alizadeh S oheila yaghmaei M anochehr H akim M aziar H akim H ossein Kharg 4151245121 4151245121 Nano materials Investigation on the wear behavior of Cu/TiO Nano-composites Produced by Powder Metallurgy and internal oxidation S harif U niversity of Technology A.H .M oghannian A.Abazarpoor M .R .G harabeick 19 A.Bahrami S .K.S adrnezhad st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 4181254121 4181254121 Nano materials 95 Preparation and characterization of high energetic Al/Ni core-shell nanostructures Ferdowsi U niversity of M ashhad H . Beigi N asrabadi M . zarei B. S hahabi Kargar S .A. S ajjadi 4221266121 4221266121 New materials 96 Effects Initial Press Pressure on of MoSi Method vol% WSi Composite Synthesized to SHS M aterial and E nergy R esearch C enter(M E R C ) R . sayad S .A. Tayebifard 97 K. Ahmadi 4271281121 4271281121 Bio materials Nanowire based cell for Harvesting Energy From in-vivo environment Islamic Azad U niversity, Bushehr Branch Abdolhossein Sa'aedi 98 H ossein R ouzegar Alireza M alahzadeh 4311293121 4311293121 Nano materials Structural and Magnetic Properties of Nanocrystalline SrFe Precipitation Method O Hexaferrite by Co- M aterials and E nergy R esearch C enter Arvin E skandari 99 M ansoureh G anjali M asoud Aminzare 4351305121 4351305121 New materials Evaluation of mechanical properties of Al/NiP composites fabricated by accumulative roll bonding (ARB) process Shiraz U niversity H ossein Baharipour 100 H abib D anesh M anesh G holamreza S hahri 4401320122 4401320122 Bio materials Influence of concentration of antibiotic (Cephalexin) on the rheological behavior of calcium phosphate nano-composite cement pastes M aterials and energy research center R .S hiri S .H esaraki 101 E .G hasemi 4421326122 4421326122 Semi conductors Piezoelectric Nanowire toward Harvesting Energy From in-vivo environment Islamic Azad U niversity, Bushehr branch Abdolhossein Sa'aedi M ohammad O rvatinia H ossein R ouzegar 20 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 102 4471341122 4471341122 Semi conductors Sol-gel Synthesis and Characterization of Barium Strontium Titanate Thin Films M aterials and E nergy R edearch C enter (M E R C ), Karaj, Iran A. N ajari M .A. Bahrevar 103 A.R . Aghaei 4511353123 4511353123 New materials A study on aluminum matrix composite reinforced with a two-dimensional network of interconnected steel wires fabricated by lost foam casting Iran U niversity of S cience and Technology (IU S T) H .R . P akzaman 104 A.R . Khavandi M . D ivandari 4531359123 4531359123 Nano materials An Investigation through Reflection Coefficient of a Nano-Metallic Grains and Glass Oxide Compound Shiraz Payam-e N oor U niversity H . Shahmirzaee 105 A. G harati A.Kamaldar 4681404126 4681404126 Nano materials Fabrication of hight conductive circuits via inkjet printting G uilan U niversity F.H aghdoost F.M ohtaram 106 Nano materials V .motaghitalab A.K.H aghi S .M .Bidoki K.M ahfoozi 4691407126 4691407126 A novel approach for synthesis of silver nanoparticles U niversity of G uilan F.M ohtaram 107 F.H aghdoost V .motaghitalab A.K.H aghi 4811443127 4811443127 Nano materials Mechanical properties and gelation behavior of gel-cast ZrO bodies Iran U niversity of S cience and Technology S eyed M ohammad M ahdi R ouholamini 108 M orteza Zandrahimi 52515751210 52515751210 Nano materials Effect of Medium and solvent Changing on Polystyrene Seed Nano-Particles Synthezied via Dispersion Polymerization Amirkabir U niversity of Technology Ali Bavi Babak N asr Faramarz Afshar Taromi H ormoz E slami 21 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 109 55816741212 55816741212 Magnetic materials The Investigation of Effect of Barrium Hexa Ferrite Nano Particles on the magneic Properties And Bonding Srength of Nd-Fe-B Hybrid Magnets S hahid Bahonar Kerman P edram P arsa 110 M ohammad R eza IzadP anah 56216861212 56216861212 Nano materials Effect of important factors on synthesis of prussian blue nanoparticle islamic azad university,science & research branch S eyed E hsan H oseininasab 111 Amir H eidarinasab N ahid Amiri 56416921224 56416921224 Nano materials Phase evolution of hydroxyapatite nanocomposites during sintering D epartment of C eramic, M aterials & Energy R research C enter (M ER C ), Karaj, P .O . Box 31787-316, Iran M ohsen Ebrahimi 112 Touradj Ebadzadeh Esmail Salahi 56616981225 56616981225 Nano materials Heat operation for synthesis of calcinated hydroxyapatite and loading silver nanoparticles on it D epartment of C hemistry, M ajlesi Branch, Islamic Azad U niversity, Isfahan, Iran H .R .E brahimi 113 M .Khodaie M .M odrek N .M ahru 5671701224 5671701224 Nano materials Evaluation of Bioactivity of PHB/nHA Composite Scaffold for Bone Tissue Engineering Islamic Azad U niversity, M ajlesi Branch Abbas Saadat 114 AliAsghar Behnamghader Saeed Karbasi 5681704224 5681704224 Nano materials Some Aspects of New Advanced High-Mn TWIP steels U niversity of Isfahan G . D ini H . shekari 115 5691707224 5691707224 Bio materials DESIGN AND SYNTHESES OF PHOTO-REACTIVE BIOPOLYMERS R IKE N Advanced S cience Institute Y oshihiro Ito 22 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 116 5701710224 5701710224 New materials A Comparison between UV Protection Factor of Fabrics composed of Aluminum and Copper Isfahan U niversity of Technology S . M . E slami Tabaei 117 M . G hane 5711713224 5711713224 Nano materials Electroplating of Sol-Enhanced Black Ni Composite Coatings U niversity of Auckland M arzieh S harifi 118 W ei G ao 5771731224 5771731224 New materials The role of silicon carbide particles in stabilizing aluminum foam in batch type gas injection foaming process Iranian Academic C enter for Education, C ulture and R esearch (AC E C R ), M ashhad M . M alekjafarian 119 M . S . Abravi M . G olestanipour A. R . Sadeghi S .K. Sadrnezhaad 5781734224 5781734224 Bio materials The effect of adding bioactive glass on the fluoride release of resin-modified glassionomer cement in simulated body fluid M aterials and E nergy R esearch C enter,Karaj Jhamak N ourmohammadi 120 S hokufeh Teimory S .K. S adrnezhaad 5791737224 5791737224 New materials Self-Propagating High-Temperature Synthesis of Porous Molybdenum Disilicide Composites Iranian Academic C enter for E ducation, C ulture and R esearch (AC E C R ), M ashhad M . M alekjafarian 121 E . Zahabi S .K. S adrnezhaad 5801740224 5801740224 New materials PHYSICAL - CHEMICAL AND THERMODYNAMIC PROPERTIES OF ALUMINUM ALLOYSNEODYMIUM M ajlesi Branch, Islamic Azad U niversity M .B R azazi R .N .Amini B.B Ishov A.B Badalov 23 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 5811743224 5811743224 Semi conductors 122 Semiconductor nanoscrystals as novel optical materials B.I.S tepanov Institute of P hysics, M insk, Belarus S .V . G aponenko 583174923 583174923 123 Metal foam sandwich composites: Contact damage, residual bending strength and energy absorption S chool of M aterials S cience and E ngineering, U niversity of N ew S outh W ales, S ydney, Australia M aizlinda I. Idris Tania V odenitcharova M ark H offman 584175231 584175231 124 Modification of light-matter interaction in nanostructures: From basic physics towards applications Stepanov Institute of Physics, N ational Academy of Sciences of Belarus 83249729 83249729 Nano materials 125 Toughening of PA /HDPE/SEBS-g-MA/Clay nanocomposite Islamic Azad U niversity, S outh of Tehran branch M . Attari A. Arefazar G h. R . Bakhshandeh 85255730 85255730 New materials 126 Investigation on The Effect of Viscoelasticity on Natural Frequency in Cylindrical Sandwich Using FEM Imam H ossein U niversity M .shariyat S .M .M .Shakib 127 A.R .N .O skouie A.H .R .M azyak M .R .M ohammadi 9227685 9227685 Bio materials Tribology Evaluation of Jatropha as an Environmental Friendly Lubricant U niversity Technology M alaysia I. G olshokouh 128 S . S yahrullail F.N . Ani 9829485 9829485 Bio materials Micromechanical study of green wood subjected to mode I fracture Tarbiat M odarres U niversity A. S edaghat M . S oleymani M . Talachian 24 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 131 Farsi3079211011 Farsi3079211011 Functional materials )Mo(Si,Al M aterials and E nergy R esearch C enter حسیي فصیحی دستجردی 132 سیذ علی طیبی فرد هسعَد علیسادُ هحوذرضا حسي زادُ Farsi35710711117 Farsi35710711117 Nano materials LLDPE/nanoTiO داًشگاُ شیراز ًذا سرحذی حویذُ بصیری 133 جَاد هرادللی هحوذ ابراّین بحرالعلَم هحوذ حسیي شیخی Farsi36711011121 Farsi36711011121 New materials داًشگاُ صٌعتی اهیركبیرٍ ،احذ هاّشْر اهیر بابايی سیذ رضا غفارياى 134 سیاهك باسمی Farsi4761428126 Farsi4761428126 Nano materials WC-Co آزاد اسالهی ٍاحذ اسالهشْر ًیوا خادهیاى حبیب ايٌاًلَ 135 رضا غالهی پَر Farsi4781434126 Farsi4781434126 New materials داًشگاُ فردٍسی هشْذ حسیي حسیٌخاًی جلیل ٍحذتی خاكی سیذ هجتبی زبرجذ 26 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 136 Farsi4831449127 Farsi4831449127 Nano materials Co Fe داًشگاُ علن ٍ صٌعت ايراى علی هْرالحسیٌی 137 حویذ رضا صوین حکوت رضَی زادُ Farsi4871461127 Farsi4871461127 Nano materials - داًشگاُ صٌعتی اصفْاى يلذا كريوی احوذ هٌشی 138 Farsi4901470128 Farsi4901470128 Semi conductors LaFeO داًشگاُ آزاد اسالهی ٍاحذ علَم ٍ تحمیمات تْراى زّرا درخشی هرتضی تویسی فر 139 كاٍُ ارزاًی سعیذ باغشاّی Farsi4931479128 Farsi4931479128 Nano materials داًشگاُ صٌعتی شريف آرهیي ٍحیذ هحوذی 140 هحوذ حاللی هحسي حاجی پَر Farsi4941482129 Farsi4941482129 Nano materials B C ZrB -SiC داًشگاُ صٌعتی هالك اشتر علی رزهجَ هْری هشْذی هحبَبِ شاهبَلی 27 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Farsi4951485129 Farsi4951485129 Nano materials 141 AZ آزاد ٍاحذ علَم ٍ تحمیمات رٍزبِ ًصیری هحوذ اسذی سیذ فرشیذ كاشاًی بسرگ هصطفی هختاری Farsi4961488129 Farsi4961488129 New materials 142 Mn+Fe O پصٍّشگاُ هَاد ٍ اًرشی حسیي اسواعیلی سیذ علی طیبی فرد Farsi4981494129 Farsi4981494129 Functional materials 143 داًشگاُ آزاد اسالهی ٍاحذ هشْذ جعفر اسکٌذری جن هْرداد جبارزادُ هحوَد خسرٍی Farsi4991497129 Farsi4991497129 Functional materials 144 MgAl O -Ti(C,N آزاد علَم ٍ تحمیمات رحین ًمیزادُ الِْ خَش اهیذ 145 حویذرضا رضايی Farsi5021506129 Farsi5021506129 Nano materials پصٍّشگاُ هَاد ٍاًرشی حویرا جوالی هحوذ رضا ٍاعظی علی خاًلرخاًی 28 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Farsi5061518129 Farsi5061518129 New materials 146 داًشگاُ شْیذ باٌّر كرهاى اهیر گلستاًی هرتضی زًذ رحیوی سیذ اسواعیل شکیب Farsi50915271210 Farsi50915271210 Nano materials 147 داًشگاُ آزاد اسالهی علَم ٍتحمیمات تْراى ابراّین لاسوی تْویٌِ گیَُكی سعیذ باغشاّی علی ًعوتی Farsi51215361210 Farsi51215361210 Nano materials 148 علَم ٍ تحمیمات تْراى هرضیِ پذراى كاٍُ اَرزاًی رحین ًمی زادُ سعیذ باغشاّی هحوذ اسذی Farsi51615481210 Farsi51615481210 Nano materials 149 ZnO ازاد اسالهی اردبیل هعصَهِ ًاصری 150 علی شاهل ياشار عسيسياى كالًذرق Farsi51915571210 Farsi51915571210 Nano materials Al/B C داًشگاُ صٌعتی اصفْاى علیرضا هرادی فرادًبِ هرتضی شوعاًیاى اصفْاًی حسیي ادريس 29 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Farsi52215661210 Farsi52215661210 Nano materials 151 - داًشگاُ گیالى جوال هظلَم فرّاد اسوعیلی لذسی هیٌا غالهی كفترٍدی هحوذرضا جلیلیاى ًصرتی Farsi52315691210 Farsi52315691210 Bio materials 152 داًشگاُ صٌعتی اصفْاى سعیذ ًَری خراساًی ًرگس هظاّری Farsi52615781210 Farsi52615781210 New materials 153 داًشگاُ تحصیالت تکویلی صٌعتی كرهاى سیذُ زّرا حسیٌی هصطفی علیسادُ Farsi52815841210 Farsi52815841210 New materials 154 TiO -Al-C Al O -TiC داًشگاُ صٌعتی اصفْاى حسیي ادريس اصغر ًیوجردی 155 رحوت اهلل عوادی Farsi53616081210 Farsi53616081210 Nano materials داًشگاُ شْیذ باٌّر كرهاى هرتضی زًذ رحیوی 156 ساراالسادات حسیٌی فارق الِْ حسي زادُ پاريسی Farsi54016201210 Farsi54016201210 New materials پصٍّشگاُ پلیور ٍ پترٍشیوی ايراى جعفر رضاًیا حویذ رحیوی 30 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 157 Farsi54116231210 Farsi54116231210 Nano materials داًشگاُ آزاد اسالهی ٍاحذ فسا غالهرضا لذر هسعَد جباری 158 هحوَد آل شوس Farsi54316291211 Farsi54316291211 Bio materials داًشگاُ صٌعتی اصفْاى هحوذ حسیي فتحی پارسا رضَاًیاى 159 Farsi54416321211 Farsi54416321211 Nano materials -xSix ) -Co Fe شْیذ باٌّر كرهاى هرين يَسفی شْريار شرفی 160 Farsi55016501211 Farsi55016501211 Nano materials داًشگاُ گیالى فاطوِ هحترم فاطوِ حك دٍست 161 ٍحیذ هتمی طلب اكبر خذاپرست حمی Farsi55116531211 Farsi55116531211 Smart materials داًشگاُ گیالى فاطوِ حك دٍست فاطوِ هحترم ٍحیذ هتمی طلب اكبر خذاپرست حمی 31 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 162 Farsi55216561211 Farsi55216561211 New materials داًشگاُ تحصیالت تکویلی صٌعتی كرهاى هیالد طالبیاى هصطفی علیسادُ 163 Farsi55416621211 Farsi55416621211 Nano materials داًشگاُ شْیذ باٌّر كرهاى پذرام پارسا هحوذرضا ايسدپٌاُ 164 Farsi55616681212 Farsi55616681212 Functional materials C-SiC داًشگاُ آزاد اسالهی ٍاحذ هجلسی سعیذ صافی رحین يسداًی راد 165 اصغر كاظن زادُ يَسف صفايی ًائیٌی Farsi56016801212 Farsi56016801212 New materials NaOH KOH داًشگاُ صٌعتی اهیركبیر آرهاى هرفع ّرهس اسالهی 166 حبیب اهلل بیات سلواى الیاسی Farsi5751725224 Farsi5751725224 New materials داًشگاُ صٌعتی شريف پريسا ٍحذت خَاُ سیذ خطیباالسالم صذرًصاد 32 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Farsi5821746227 Farsi5821746227 Nano materials NiTi 167 داًشگاُ صٌعتی شريف سیذ علیرضا حسیٌی 33 سیذ خطیب االسالم صذرًصاد شْريار اكبری ًیا NAMIC 2012 English Papers st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 10330986 Optimization of Composite Rocket Launcher Using GA A.R.N.Oskouie (1)M.R.Mohammadi (2)A.H.R.Mazyak (3)M.R.S.Barzegar (4) [email protected] Abstract : Nowadays, as is well known, optimized composite materials are employed in many constructions when high strength to weight ratio and increasing the section rigidity of the light weight structures and ease of manufacturing are required. In this paper, new optimization method of graphite-epoxy composite cylindrical shell, under thermo mechanical loading is done by MATLAB SOFTWARE coding in GENETIC algorithm method to decrease weight of structure in satisfactory limit. The completely mathematical method of composite layup is reached by using of approximately approach analysis of long shells and plates. The failure criterion of Composite materials is T-SaiHill. Final results of analysis for obtain the critical points of rocket shooting, are done by ABAQUS SOFTWARE. Keywords : Abaqus, Matlab, Genetic Algorithm, Composite, Launcher - Emam Hossein , Faculty of Mech. Eng. ,Hakimiyeh , Tehran - - - Emam Hossein University, Faculty of Aero Space .Eng. ,Hakimiyeh , Tehran 36 36 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 10531586 Study of Ultrasonic Technology to Create Nano-Structured Materials A. R. Abbasi (1)A. Emamikhah (2) [email protected] Abstract : Recently some investigations have been performed in the field of ultrasonic technology for improving the nano surface characteristic. Ultrasonic Cold Forging Technology (UCFT) is a sever plastic deformation which accomplishes with nano structure of surface layers by HallPetch theory and ultrasonic technique that increases mechanical properties of the materials. At this technology according to Hall-Petch theory both toughness and hardness will augment simultaneously with sever plastic deformation, then will contribute to nanostructure of surface layers and increase the metal strength. At this study, basic principle of UCFT and related experiences on steel were taken into account in view of previous setup and research. Consequences indicated the rising in tensile strength, hardness surface improvement and reduction in surface roughness and friction coefficient. Aforesaid technology has low energy consumption and without any limitation in part dimensions can be a replacement of heat surface treatment. Keywords : Ultrasonic, Nanostructure, Mechanical properties, UCFT - - Graduated, Master of science, Islamic Azad University Najafabad Branch 37 37 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 10732187 Biodegradable Magnesium–Fluorapatite Metal Matrix Nanocomposite with Improved Corrosion Resistance for Biomedical Applications M. Razavi (1)M.H. Fathi (2)M. Meratian (3) [email protected] Abstract : The aim of this work was to prepare and characterize of biodegradable magnesium– fluorapatite metal matrix nanocomposite. Novel AZ91–FA nanocomposite were produced by AZ91 magnesium alloy powders and FA nanoparticles. Bio–corrosion behavior of the prepared AZ91–FA nanocomposite, and also the AZ91 magnesium alloy as control sample, were evaluated. The results showed that the presence of the AZ91–FA nanocomposite presented increased corrosion resistance compared to the AZ91 magnesium alloy. The addition of fluorapatite nano particles reinforcements to magnesium alloys accelerate the formation of an apatite layer on the surface, which provides improved protection for the AZ91 matrix. Keywords : Biomaterials, nano-composite, Biodegradable Magnesium alloys - Ph.D. student, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran. - Professor, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran. - Associate Professor, Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran. 38 38 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 11233687 Synthesis of Al O -SiC-MgO Nanocomposites via Hotpressing for Improving Mechanical Properties Jalil Pourasad (1)Hamid Reza Baharvandi (2)Naser Ehsani (3)Alireza Rahimnezhad Yazdi (4) Hosein Abdizadeh (5)Hafez Ahmadi (6) [email protected] Abstract : Alumina with having excellent mechanical properties has disadvantages such as low fracture toughness and excessive grain growth during sintering. In this project, vol. % SiC nanoparticles were added to Al O powder containing MgO nanoparticles. Sintering of the powder compacts was carried out in argon at to °C temperatures under MPa. The results indicated significant increases in mechanical properties such as density, flexural strength, hardness to GPa, and toughness fracture with increasing hotpressing temperature. The SEM micrographs showed SiC nanoparticles inhibited the grain growth of Al O . The fracture mode of Al O -nanoSiC nanocomposites were mainly intragranular fracture. Keywords : nanocomposites, alumina; silicon carbide, hot pressing, Mechanical Properties - - - - Faculty of Materials Engineering, Malek ashtar University of Technology, Tehran, Iran - Faculty of Materials Engineering, University of Tehran, Tehran, Iran - Faculty of Materials Engineering, Sharif University of Technology, Tehran, Iran 39 39 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 12637887 Effect of Anodizing Parameters on Surface Properties of Anodized Ti- Al- V Alloy for Biological Applications Z. Jamebozorg (1)K. Zangene-madar (2)M. Mirjani (3)Sh. Seyydin (4) [email protected] Abstract : Anodic oxide layers were produced on Ti–6Al–4V substrates using aqueous electrolytes containing dissolved calcium and phosphorus. Anodizing treatment was carried out at different times (45-135 min) and voltages (30-90 V). Different oxide layers were produced by varying the voltage and time anodizing. Thickness, surface roughness, surface morphology and chemical composition of oxide layer were investigated. To evaluate the biocompatibility of the oxide layers, electrochemical polarization test in Ringer`s solution was performed. Structure of the layers was studied by X-ray diffraction and scanning electron microscopic. It is found that the thickness and surface morphology strongly is a function of voltage and time anodizing. Increasing the voltage up to 60 volts, resulting to smaller pores up to 2μm, and it decreases the roughness. In general, increase in voltage decrease the roughness up to . μm. The best biocompatibility properties are obtained under V and min. Keywords : Anodizing, Ti- Al- V alloy, Biocompatibility, Surface Treatment - - - - Department of Material Engineering, Faculty of Materials & Manufacturing Processes, Malek- Ashtar University, Tehran, Iran 40 40 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 14443288 Production of Nano-Structured Composites from Multilayered Al Pure( ) and Al-Mg( ) Al alloys By ARB Process and Evaluation Microstructure and Mechanical S. Akhavan (1)A. Tahvilian (2)A. Saghayannejad (3)M. Toroghinejad (4) [email protected] Abstract : Accumulative roll bonding (ARB) is a severe plastic deformation process for achieving ultra-fine grains in metallic sheets without changing the sample dimensions. A high-purity Al( ) alloy and a Al-Mg( ) alloy were ARB process up to cycles at ambient temperature to generate sheet composite material consisting of alternating layers of Al and AlMg. Sample properties were studied by employing hardness measurements, tensile test, SEM and TEM characterizations. The deformation structure within these layers consisted of lamellar bands aligned parallel to the rolling direction. With increasing the strain, mean spacing of lamellar boundaries decreased. Finally, continuous recrystallization resulted in a microstructure covered with small recrystallized grains with an average diameter below nm at the end of four cycle. The tensile strength and hardness of the cycle ARB processed composite sheet increased about times of the initial Al alloy values and about five times of the initial Al alloy values, respectively. Fracture surfaces observations showed that failure mode in ARB processed composite is shear ductile rupture with elongated small dimples. Keywords : Accumulative roll-bonding, Severe plastic deformation, Aluminum , Aluminum , - - M.Sc, Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran - M.Sc, Islamic Azad University, Najafabad Branch, Isfahan, Iran - Associate Prof., Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran 41 41 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 166498823 Effect of Mechanical Activation and Additive on Aullite Formation Arezoo Seifollahzadeh (1)Touraj Ebadzadeh (2)Masoud Alizadeh (3) [email protected] Abstract : Mullite have been used as an structural and electronic ceramic due to its excellent structural properties such as good mechanical strength, excellent thermal shock and creep resistance, low thermal conductivity and high-temperature stability. The characteristic structure of mullite allows its grain to grow anisotropically if the grain growth takes place without any external constraint. The conventional techniques for synthesis of these elongated mullite grains are vapor- solid synthesis and in situ processing technique. Because of disadvantages of these techniques researchers tried to develop an alternative technique to produce mullite whiskers by mechanical activation of mixed oxide precursors. Also, some oxide additives decrease the temperature of mullite phase formation from starting materials. So in this paper it is tried to explain the enhancement in mullite formation in mechanoactivated starting materials doped with additives. Keywords : Mechanical activation, Mullite, Anisotropic grain growth, Oxide additives - - - Ceramic Division, Materials & Energy Research Centre, Emam Khomeini Blvd, Meshkin Dasht, Karaj, IRAN 42 42 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 189567828 nhancing Glass Inomer Cement Properties by HA-YSZ Nanocomposite : a Mixure Design Experiment S. Salehi (1)Gh. Rajabzadeh (2)A. Nemati (3)M. Solati Hashtjin (4) [email protected] Abstract : Beside of Glass Inomer Cements ,s (GIC) brilliant properties, the weak mechanical properties of GIC is as big barrier for using it in the orthopedic surgery. The present research aims to formulate hydroxyapatite/ yetrria stabilized zirconia (HA/YSZ) -GIC composite cements with improved mechanical properties of the set cement than the pure GICs. The HA/YSZ was synthesized via sol-gel method and characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) , X-ray photo-emission spectroscopy (XPS), the simultaneous thermal analysis (STA) and transmission electron microscopy (TEM) methods. The synthesized nanocomposite was mixed with GIC in the fixed composition of %W/W. The mechanical effect of different weight percent of YSZ: HA on GIC was investigated by measuring the compressive strength, diametral tensile strength, hardness. Keywords : Glass inomer cement, HA/YSZ, mechanical properties - Master student of material engineering, Department of material engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran - Nanotechnology Department, Research Institute of Food Science and Technology, Mashhad, Iran - Department of Material Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran - Nano-biomaterials Lab (NBML), Faculty of Biomedical Engineering, Amir Kabir University of Technology, Tehran, Iran 43 43 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 195585828 Investigation of Non-isothermal Kinetics of Fluorapatite Synthesis via Solid State Reaction S.Rahpeyma (1)R. Ebrahimi-Kahrizsangi (2) [email protected] Abstract : In this research, the kinetics of Fluorapatite synthesis via mechanochemical route in non-isothermal conditions was studied. The reaction kinetics was investigated by means of simultaneous thermal analysis(STA) instrument. The experiments were carried out under nonisothermal condition in argon atmosphere with linear heating rates of , and ◦C/min. The Coats-Redfern approximation was used to determine the mechanism of reaction and Kinetics parameters. The results showed that the reactions are chemically controlled with mechanism of E= 16 KJmol-1. Keywords : Fluorapatite, Mechanochemical synthesis, Reaction mechanism, Kinetics - M.Sc student, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran - Associate Professor, Department of Material Engineering, Islamic Azad University-Najafabad Branch, Isfahan, Iran 44 44 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 205615828 Synthesis and Characteristics of Copper Nanoparticles Using Laser Ablation Monireh Ganjali (1) [email protected] Abstract : Nanosized Copper (Cu) particles were controllably synthesized during pulsed laser ablation of Cu target in surfactant-free aqueous solution (pure acetone and deionized water). Thereby, the particles formation rate depends on the used ambient and laser beam parameters. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM) were conducted in order to determine the size, shape and structure of the particles. XRD characterization confirms the formation of Cu nanoparticles (NPs). The synthesized Cu NPs are self assembled with average size lying in the range - nm with narrow size distribution and crystalline in nature. Keywords : Nanosized Cu, Laser ablation - Nanotechnology and Advanced Materials, Materials and Energy Research Center (MERC) ,Tehran, Iran 45 45 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 206618828 Synthesis of Au -Cu Bimetal Nanoalloy by Dual Prosedure Mansoureh Ganjali (1)Monireh Ganjali (2) [email protected] Abstract : This present study was focused on the synthesis of alloyed Au-Cu nanoparticles under simultaneous pulsed laser and mechanical stirring of mixed individual metallic colloids, here referred to as dual procedure. As feed for dual procedure, Au and Cu monometallic nanoparticles colloids were achieved based on a laser ablation technique. To perform this, bulk targets were ablated with nm wavelength Nd:YAG laser in a pure acetone ( %) medium. Ultra violet-Visible optical absorption spectrometry, transmission electron microscopy, X-ray diffraction and X-ray fluorescence were used to characterize the nanoparticles. It was found experimental conditions such as stirring and laser parameters strongly affect the synthesized particle properties such as size, shape, composition and stability of the nanoparticles. Alloy nanoparticles containing % Au – 61 % Cu were produced in the same process, but in two forms of a homogeneous alloy and a core-shell structure. Keywords : Laser ablation, Au-Cu alloy nanoparticle, Core-shell - - Assistant professor, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre (MERC), Karaj, Iran 46 46 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 209627829 nthesis and Characterization of Nanostructure Intermetallic Compounds in Ni -Ti -Al System Using Mechanical Alloying Hesam Rezvani Sichani (1)Mehdi Salehi (2)Hosein Edris (3)Mansoor Toorani Farani (4) [email protected] Abstract : Intermetallic compounds are advanced materials that have recently gained considerable importance due to their mechanical and physical properties. Considering their improved mechanical properties, formation of nanostructure intermetallic compounds has received special attention. Ni-Ti-Al intermetallic compounds have significant importance given their high strength, thermal resistance and corrosion resistance. Mechanical alloying followed by appropriate heat treatment to produce nanostructure intermetallic compounds is being widely used nowadays. This study aimed at investigating the effect of ball mill time and the heat treatment after it on the formation of nanostructure intermetallic compounds in Ni -Ti Al system. To do so, the Ni Ti Al mixed powder was prepared and milled in a planetary ball mill at different times. Products were evaluated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Upon milling for hour, Ni Al nanostructure intermetallic compound was formed. The mixed powder was obtained after hours milling was annealed. Results obtained after heat treatment suggest the formation of ternary system of intermetallic compounds such as Ni (Ti,Al) and Ni TiAl as well as binary compounds. Given the formation of Ni-Ti-Al nanostructure system with desirable properties and considering the simplicity and low cost of the process, mechanical alloying and heat treatment can also be used to produce other intermetallic compounds. Keywords : Mechanical alloying, Nanostructure intermetallic compound, Annealing, Ni-Ti-Al system - - M.Sc., Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran - - Professor, Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran 47 47 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 210630829 Synthesis of Ni Ti nanostructure intermetallic compound in Ni -Ti system by mechanical alloying Mansoor Toorani Farani (1)Mehdi Salehi (2)Hosein Edris (3)Hesam Rezvani Sichani (4) [email protected] Abstract : Ni-Ti intermetallic compounds have distinct properties that distinguish them from other types of intermetallic compounds. These properties include shape memory, compatibility with body environment, super elasticity property, high toughness, appropriate tribology behaviour and high corrosion resistance. Mechanical alloying followed by appropriate heat treatment to produce nanostructure intermetallic compounds is being widely used nowadays. This study was an attempt to investigate the formation of nanostructure intremetallic compound in Ni-Ti system, using mechanical alloying and subsequent heat treatment. Ni Ti Initial powder was milled in a planetary ball mill under argon atmosphere at different times and was evaluated by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). Results showed that the Ni Ti nanostructure Intermetallic compound was formed after hoar ball mill. Also, heat treatment on ºC lead to formation of NiTi and some titanium oxide in addition to stabilizing Ni Ti nanostructure. Keywords : Mechanical alloying, Nanostructure intermetallic compound, Annealing, Ni-Ti system - - M.Sc., Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran - - Professor, Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran 48 48 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 219657829 Effect of Fe O addition on crystallization of SiO -Na O-CaO system glasses P. Shahsavari (1)B. Eftekhari Yekta (2)V.K. Marghussian (3)N. Solati (4) [email protected] Abstract : Crystallization behavior of soda-lime foam glass composition investigated by addition of iron oxide (Fe O ) up to %wt using reducing agent such as SiC. Crystallization temperature of Fe-bearing Diopside (Fe Al Mg )Ca (Fe Si Al ) O , Acmite/Aegirine NaFe(SiO ) decreased with increasing iron content from oC to oC. Magnetite plays key role as an intermediate phase on which pyroxene heterogeneously crystallizes. Presence of SiC also intensifies crystallization without remarkable change in temperature. Samples with gr part weight Fe O , showed desirable foaming behavior along with crystallization. Keywords : -Msc. Student, Iran University of Science and Technology - Associate Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology - Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology - Bsc. Student, Iran University of Science and Technology 49 49 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 221663829 Surface modification of Polyurethane as a Novel Skin Dress S. A. Ayati Najafabadi (1)H. Keshvari (2)Y. Ganji (3) [email protected] Abstract : The aim of this study is to design and fabricate an artificial skin dress for the purpose of skin healing. A multilayer skin dressing included castor oil-based polyurethane synthesized as the outer layer and two biopolymeric layers of heparin and chitosan as the inner layers were fabricated. The surface of polyurethane was activated using two steps oxygen radio frequency (RF) plasma. The surface of the modified PU films characterized by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, and water drop contact angle measurements. The ATR-FTIR spectrogram of the modified films showed new characteristic peaks of PU. Also, heparin and chitosan were successfully immobilized on PU films. In vitro cell culture study on the chitosan/heparin immobilized PU and poly (acrylic acid)-grafted PU films showed compatibility of modified surfaces as well as virgin film with L fibroblast cells. Cell adhesion and proliferation of cells on the chitosan/heparin immobilized surfaces showed better behavior compared with poly (acrylic acid)-grafted PU. It was concluded that chitosan/heparin-immobilized surfaces can have a good potential to be used as a skin replacement. Keywords : Chitosan, Heparin, Polyurethane, Surface modification, Two-step plasma treatment - - - Biomaterials Group, Biomedical Engineering Faculty, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran 50 50 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 222666829 High temperature oxidation behavior of graphite coated by dual layer of nano-SiC/SiC H. Jafari (1)N. Ehsani (2)S.A. Khalifeh-Soltani (3)M. Jalaly (4) [email protected] Abstract : In this research, a dual-layer coating was used to improve high temperature oxidation resistance of graphite substrate. For first layer, silicon carbide was applied by pack cementation method. Powder pack consisted of Si, SiC and Al O and heat-treated at °C in an argon atmosphere. SEM and XRD characterizations confirmed formation of SiC diffusion coating with about µm including compositionally gradient of C and Si elements. Electrophoretic deposition (EPD) was used to deposit nano SiC (SiCn) as second layer. Thickness of second layer of SiCn in corresponded optimal situation was µm. Samples with single and dual layers were investigated in oxidation test at °C. Results showed that an extreme increase was occurred in oxidation resistance after application of second layer of nano SiC. Weight loss value for single layer coating of SiC and dual layer coating of SiCn/SiC after oxidation test for h at °C were wt.% and wt.%, respectively. Keywords : Oxidation, Coating, Nano SiC, Pack Cementation, Electrophoretic Deposition - MSC Graduated, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran - Associated Professor, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran - MSC Researcher Engineer, Faculty of Materials and Manufacturing Technology, MUT University, Tehran, Iran - PhD student, Materials Engineering Department, Iran University of Science & Technology, Tehran, Iran 51 51 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 246738829 Metal matrix composites aluminium and fiber carbon Farzaneh vali ghazvini (1)Arman sedghi (2) [email protected] Abstract : Over the past two decades– a period coinciding with publication of composites science and technology – metal matrix composites (MMCs) have been transformed from a topic of scientific and intellectual interest to a material of broad technological and commercial significance. Metal matrix composites first as a unique technology appeared that military systems need to their performance and the primary motivation for the development of materials were created.One of the most important parameters in the study of metal matrix composites contact surface formed is between the matrix and the ceramic reinforcement. Because this area is determining power and resistance to cracking in the composites during deformation. Now that this principle to form a strong bond between ceramic and wetting metal is necessary, is accepted completely. Also all chemical reactions are also possible, be controlled. In this study, The damping properties of aluminum matrix composites reinforced with coated continuous carbon fibers were studied. The experimental results show that a CVD carbon coating on the surface of T300 carbon fibers greatly improves the overall damping capacity of Cf/Al composites. Coating of carbon fibers have been used by K2zrf6 so it creates more favorable properties. Fibers from 10 seconds to 1 minute we tested. Pure aluminuim at 800˚C was melted and coated fibers pass through the molten. The best properties of composite was achieved at the optimum condition the heating temperture fiber of 70˚C, maintaining time fiber: 3hr , melting temperature of aluminium 800˚C . Also the microstructure of such composites was also studied by SEM and TEM to better understand. Keywords : Processing, Application, Carbon fiber, Metal-matrix composites (MMCs) - M. Sc. Student, School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini Internati onal, Qazvin, Iran - Associate professor, School of Metallurgy and Materials Engineering, College of Engineering, University of Imam khomeini International, Qazvin, Iran 52 52 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials 264792830 Optimisation of Fibre Orientations in Composite Material by Applying Simulating Annealing and Genetic Algorithm Methods Rasoul Khandan (1)Siamak Noroozi (2)Philip Sewell (3)Mehran Koohgilani (4) Hamid Reza Hooshyarmanesh (5) [email protected] Abstract : Recently fibre composite structures have become very attractive suitable candidate for engineering applications. Composite materials have been used in the replacement and rehabilitation of traditional structures or design and manufacture new applications. However, the lack of knowledge and especially the non-linear behaviour of composite material limit demands for them. Usually these barriers lead to over-designed products or producing based on trial and error and designer’s experience Transverse shear and normal stress through thickness are the main cause of nonlinear behaviour of composites. The effect of transverse shear is ignored in current optimisation methods for laminated composites. In this paper Simulated Annealing (SA) and Genetic Algorithm (GA), two stochastic optimisation methods, are applied on penalty function which is recently modified by the author. The effect of transverse shear is considered in this penalty function. The numerical results of SA and GA optimisations are presented and compared. Keywords : - PhD researcher, Bournemouth University, Bournemouth, Dorset, UK - - - School of Design, Engineering and Computing, Bournemouth University, Bournemouth, Dorset, UK - Mechanical Engineering Department, Isfahan University of Technology, Isfahan, Iran 53 53 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials 27381994 Effect of Electrical Parameters on Plasma Electrolytic Oxidation Coatings of Al Alloy V. Dehnavi (1)B. Luan (2)X.Y. Liu (3)S. Rohani (4) D. W. Shoesmith (5) [email protected] Abstract : Plasma electrolytic Oxidation (PEO) is a novel technique to create ceramic coatings on light weight metals particularly aluminum and magnesium alloys. PEO is a simple, high efficiency and eco-friendly technology. The wear and corrosion resistance of components manufactured from Al-based alloys can be drastically increased by the application of ceramic coatings produced by PEO. The PEO process operates at potentials greater than typical breakdown voltages of the original oxide films (typically V). Breakdown of the film is accompanied by multiple sparking on treated surfaces. Currently, PEO processes are in a transition phase from research to commercial applications, mainly focused on the corrosion and wear protection of light alloys. The properties of the coatings produced by PEO can be controlled and altered by changing process parameters. Although a lot of researchers have studied the PEO process, there is not much information available about the role of electrical parameters such as frequency and duty cycle. In this study, the effects of frequency and duty cycle on morphology, phase contents and growth rate of PEO coatings on Al alloy produced by pulsed uni-polar DC current was investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDX) . Coatings were found to consist primarily of two phases: α-Al O and γ-Al O with varying ratios. It was observed that changing the electrical parameters affects microstructure, ratio of phases and surface morphology of produced coatings. Keywords : Plasma electrolytic oxidation, alumina coating, duty cycle, frequency - PhD Candidate, Department of Chemical and Biochemical Engineering, Western University, London, ON, Canada - Senior researcher, professor, National Research Council Canada, London, ON, Canada - Senior researcher, National Research Council Canada, London, ON, Canada - Professor, Department of Chemical and Biochemical Engineering, Western University, London, ON, Canada - Professor, Department of Chemistry, Western University, London, ON, Canada 54 54 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 27983799 Nano-crystalline Nickel Coatings Electrodeposited on Plain Carbon Steel in Watts-Type Bath With and Without Additives Fereshteh Mallakpour (1)Maryam Golozar (2)Zahra Dadkhah (3)Mohammad Ali Golozar (4) Keyvan Raeissi (5) [email protected] Abstract : Nickel coatings were electrodeposited on carbon steel in a Watts-type bath, using direct current. To compare the effects of additives, dodecyl and saccharin were added to the bath. Coatings were characterized using Scanning Electron Microscope, X-Ray Diffraction and Atomic Force Microscopy. Micro hardness was also measured. Results showed that in all cases, the texture of coatings was { }. Semi-spherical morphology was observed in the presence and absence of dodecyl. Conversely, saccharin led to a smooth surface. Values of Ra and Rms showed that both additives reduce the roughness of the coatings. The roughness of the coatings produced in the presence of saccharin was the lowest. Hardness measurements showed that coatings produced in the bath with saccharin have the highest micro hardness,. Calculating the grain size of the coatings showed that all the deposits have nano-crystalline structures. Keywords : Nickel coatings, Electrodeposition, Plain carbon steel, Saccharin, Dodecyl - B.Sc, Department of Materials Engineering, Isfahan University of Technology, Isfahan , Iran - M. A. Sc Student and Research Assistant, Department of Materials Engineering, University of British Columbia, Vancouver, B.C, Canada - B.Sc, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran - Professor, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran - Associate Professor, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran 55 55 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 283849916 Study on MR Nanocomposites to Develop a Miniature Gripper Aref Naimzad (1)Yousef Hojjat (2)Mojtaba Ghodsi (3) [email protected] Abstract : Magneto-rheological Nanocomposites (MRNCs), consisting of carbonyl iron particles with nanometer dimension embedded in a silicone rubber matrix, display a variety of interesting smart physical properties. The modulus of MRNCs can be controlled by strength of magnetic fields. The MRNCs are proposed to manufacture newer products of less weight like miniature grippers. The development of new products requires the characterization of the rheological and mechanical behavior of the materials and the correct preparation for further applications. A laser setup is used to prepare the nanosized carbonyl iron particles. The µm carbonyl iron particles are ablated to nanometers using CO laser setup. The MRNCs is fabricated under isotropic condition and characterized by field emission scanning electron microscopes (FESEM). In the course of material development, the magnetic attraction is compared among four nanocomposite samples containing the different percentages of nanosized carbonyl iron particles. The mechanical property tests are conducted to determine the hardness and the elastic modulus. The rheological tests are performed to study the curing aspects of MRNCs. The magnetic properties of MRNCs are practically measured and recorded. Through successful development of MRNCs, the produced MR nanocomposites are used in its potential application for a miniature gripper. Developments of MR nano-composite along with design of gripper enhance performance of micro-mechatronics system used in medical operation and micro- material transportation as well. Keywords : MR Nanocomposites, Carbonyl Iron, Silicone Rubber, Miniature Gripper, CO Laser - PhD Student, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran - Associate Professor, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran - Assistant Professor, Mechanical Engineering Department, Engineering Faculty, Tarbiat Moders University, Tehran, Iran 56 56 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 294882918 Highly Selective Oxidation of Alcohols Using Nano-Sized NiO/TiO -ZrO as a Novel Heterogeneous Catalyst A.R. Massah (1)M. Azadi (2)Z. Shams ghahfarokhi (3) [email protected] Abstract : Nano-sized NiO/TiO -ZrO which was synthesized by adsorption and "two solvents" methods demonstrated very high catalytic activity in the selective oxidation of benzyl alcohols to benzaldehydes with excellent yields and selectivity in short reaction times. The physical and chemical properties of NiO/TiO -ZrO were investigated by XRD, XRF, BET, FT-IR and SEM techniques. Influence of the catalyst support (SBA- , ZSM- , TiO -ZrO and Y), type of metal oxide supported, method of loading and amount of nickel nitrate loading have been thoroughly investigated. Moreover, the catalyst has shown excellent reusability in the process. Keywords : Nano-sized NiO; TiO -ZrO ; Heterogeneous catalyst; Oxidation; benzyl alcohols - Razi Chemistry Research Center, Islamic Azad University, Shahreza Branch, Shahreza, Isfahan, Iran - - Young Researchers Club, Islamic Azad University, Shahreza Branch, Shahreza, Isfahan, Iran 57 57 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 300900919 Properties of lightweight geopolymer with waste ashes and palm oil clinker aggregates Mohammad Khanzadeh (1)Gholamreza Khalaj (2)Ali Nazari (3)Shadi Riahi (4) [email protected] Abstract : In the present work, compressive strength of lightweight inorganic polymers (geopolymers) produced by fine fly ash and rice husk bark ash together with palm oil clinker (POC) aggregates has been investigated. Different specimens made from a mixture of fine fly ash and rice husk bark ash with and without POC were subjected to compressive strength tests at , and days of curing. The specimens were oven cured for h at oC and then cured at room temperature until , and days. Addition of POC to the geopolymeric mixtures caused reduced strength at all age of curing. However a considerable increase in strength to weight ratio was acquired for the specimen with a high content of fine POC particles at days of curing. Thermogravimetric analysis and Fourier transform infrared spectroscopy both also are in agreement with the obtained results from compressive strength tests. It was shown that increasing the POC content reduced the weight loss during thermogravimetric analysis and hence increases the heat stability. Keywords : Geopolymer; compressive strength; fly ash; rice husk bark ash; palm oil clinker; TGA; FT-IR - Department of Material, Majlesi Branch, Islamic Azad University, Iran - - - Department of Materials Science and Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran 58 58 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3099271012 Investigation the effect of Nanohydroxyapatite on Tensile Properties of PHB/nHA Composite Scaffold Used for Bone Tissue Engineering A. Saadat (1)A. behnamghader (2)S. karbasi (3) [email protected] Abstract : In This study Hydroxyapatite nanoparticles (nHA) was synthesized via sol-gel method and Poly -hydroxybutyrate\Hydroxyapatite (PHB\HA) Nanocomposite scaffolds were prepared by solvent casting and particulate leaching Technique. Synthesized NanoHA was confirmed by XRD . The scaffolds were prepared from %wt polymer solution. amount of nHA was - %wt with %wt salt (NaCl) particles. Scanning electron microscopy (SEM) was used for study structure of prepared scaffolds and size of nHA particles. uniform distribution of NanoHA in scaffolds were investigated by Wavelength Dispersive X-ray Spectroscopy (WDXA). pore size was in range of µm. Tensile strength and elastic modulus increased by increasing the amount of nHA in scaffolds. Keywords : PHB\nHA composite scaffolds - bone tissue engineering- tensile properties - Department of Materials Engineering, Majlesi Branch Islamic Azad University, Isfahan, Iran - Biomaterials group, Materials & Energy Research Center, Tehran, Islamic Republic of Iran - Department of Medical Physics and Biomedical engineering, Isfahan University of Medical Science Isfahan, Iran 59 59 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors 3109301012 Synthesis and Characterization of Nano ZnO Fibers by Electrospining Method M.Kavosh (1)H. Moallemian (2)H. molaei (3)A. Ighan (4) A. Momtazan (5)M.E. Dehdashti (6) [email protected] Abstract : Electrospinning is a versatile and straight forward process for synthesizing onedimensional ( D) nanostructures of diverse materials. Conventional fiber synthesis techniques of wet, dry, melt, and gel spinning, are capable of producing polymer fibers with diameters down to the micrometer range while electrospinning, also known as electrostatic spinning, is capable of producing polymer fibers with nanoscale diameters. In this paper, we report a simple chemical method for the preparation of ZnO semiconducting nanofibers from zinc acetate/PVA by using electrospinning method. So the fibers thus obtained were calcined at 700°C K for hours and ceramic ZnO fibers were obtained. The morphological features, crystallinity, and optical properties of the ZnO nanofibers were studied by SEM images, XRD pattern, UV-vis and PL and FT-IR Spectroscopy and used of the scherer equation for the approximation crystallite size. SEM images showed that the diameters of ceramic ZnO fibers calcined at 700°C are found –80 nm. XRD results showed that the obtained ZnO nanofibers were composed of hexagonal wurtzite phase with very good crystallinity. The crystallite size obtained as 32 nm using Scherer formula. The PL and UV absorbtion spectra showed a broad green band emission and a relatively narrow absorbtion band at 550 and 274 nm respectively. Keywords : Electrospining, Nano fibers, PVA, Zinc acetate, Calcinations - - M.S. Inorganic chemistry, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran - M.S. Physic solid state, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran - - - Researcher of nano technology, Chemistry Group, Science Department, Behbahan Branch, Islamic Azad University, Behbahan, Iran 60 60 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3189541018 ANTIBACTERIAL PROPERTIES OF AU-AG ALLOY NANOPARTICLES N. S. Tabrizi (1)M. Tazikeh (2)N. Shahgholi (3) [email protected] Abstract : This paper reports a preliminary study on the effect of alloying on the antibacterial properties of silver and gold. Au-Ag alloy nanoparticles were synthesized in water by coreduction of metal salts by sodium borohydride in the presence of sodium citrate as a capping agent. The particle morphology and size were studied by transmission electron microscope. The Au-Ag ( : ) particles were of ± nm size with a good monodispersity. The formation of alloy was concluded by spectrophotometry in the visible region complemented by Energy Dispersive Spectroscopy (EDS). The antibacterial activity of the particles was examined against Escherchia coli ATCC . Interestingly, the alloy particles exhibited greater antibacterial activities than the pure metals. The antibacterial property of the alloy nanoparticles enhanced even further with increasing the molar ratio of silver. Keywords : Nanoparticles, Au-Ag alloy, Synthesis, Antibacterial effect - - - Iran Materials and Energy Research Center 61 61 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3199571018 Synthesizing of nano-structure MgNi Y alloy by mechanical milling and heat treatment L. Chitsaz Khoyi (1)Sh. Raygan (2) [email protected] Abstract : In this study, an attempt was made to synthesize the Mg Ni Y catalyst from pure Ni, Mg and Y elemental powders by mechanical milling and combination of mechanical milling and heat treatment methods. In this regard, powders of elements were ball milled at different conditions and then heat treated at ºC for hour. X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) methods were used to evaluate the characteristics of the milled mixtures. It was found from the results of XRD analysis that by increasing the ball milling time from to hours, the crystallite size of Nickel decreased from to nm and lattice strain increased from % to %, but ternary intermetallic was not observed after milling. XRD patterns showed that nano-structure MgNi Y was formed after heat treatment. SEM micrographs of hours milled samples revealed nano-size particles and agglomerates of Mg Ni Y ternary intermetallic alloy. Keywords : Ball mill, Hydrogen storage, Nano-structure, MgNi Y compound - M. Sc. Student, School of metallurgy and materials engineering, College of Engineering, University of Tehran, Tehran, Iran - Associate professor, School of metallurgy and materials engineering, College of Engineering, University of Tehran, Tehran, Ir an 62 62 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials 3209601018 Effect of manufacturing process parameters on the microstructure and mechanical properties of FGHMs Nima Khademian (1)Habib Inanloo (2)Reza Gholamipour (3)Ali Kaflou (4) [email protected] Abstract : In the present study, functional gradient hardmetals (FGHMs) with combination of WC- %Co-x TiC-yTiN (x= , y= , ) were produced by powder metallurgy method under controlled atmosphere furnace. This article describes the development of functionally graded hardmetals prepared in situ by sintering in reactive atmosphere. The microstructures of the FGHMs were examined by Scanning Electron Microscopy (SEM), elemental analysis (EDS) and X-ray diffraction (XRD). Mechanical properties of the samples were examined by micro-hardness test. Keywords : Functional gradient hardmetals, WC + Co, fcc phase - M.Sc., Islamic Azad University, Islamshahr Branch, Tehran, Iran - M.Sc., Islamic Azad University, Saveh Branch, Tehran, Iran - - Ph.D., Iranian Research Organization for Science and Technology (IROST), Tehran, Iran 63 63 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3239691019 Physical and Chemical properties of Solid Solutions Based on CuInSe -FeSe Sh. M. Hasanli (1)U. F. Samedova (2)N. H. Darvishov (3)V. E. Bagive (4) [email protected] Abstract : The crystal structre of solid solutions of the (CulnSe ) -x ( Fese) x has been studied.The values of the lattice parameters a and c of the tetragonal phase solid solutions revealed a significant axial distortion of the elementarary crystal cell.It is established that at soom temperature for solid solutions of the (CulnSe ) -x (FeSe) x at first there is a decrease of electricaal conductivity with increasing concentration FeSe to x= , and then its gradual increase with increasing concentrtion x. Keywords : Solid Solutions of the (culnse ) -x (FeSe) . The electrical conductivity, X-ray Institute of Physics of the Azerbaijan National Academy of Sciences, H.javid, aven. - - Baku State University 64 64 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Magnetic materials 3269781020 Using Electric and Magnetic Fields in Electrospinning Method for Synthesis of Fe O Nanoparticles Doped on ZnO Nano Fibers M. Kavosh (1)H. Moallemian (2)A. Ighan (3)M. Dehdashti (4) [email protected] Abstract : In this paper, nano-particles of iron oxide in the presence of specific electric and magnetic field orientation is placed on zinc oxide nano-fibers. In this methodology initially with chemical sol-gel method the magnetic iron oxide nanoparticles were synthesized. In the next step the synthesized particles are added to precursor polymer of polyvinyl alcohol (PVA) and zinc salt. By using electrospinning method, nano-fibers in the distance between the nozzle and the collector fibers foil passed through a strong electric and magnetic field. After the identification tests and SEM imaging it’s observed the iron oxide nanoparticles have placed well on the fibers. Keywords : Nano, Iron oxide, Zinc oxide, Doping, Electrospining method - M.S. Inorganic chemistry, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - M.S. Physic solid state, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran 65 65 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3299871020 Synthesis and Characterization of Titanium Oxide Nanoparticles (TiO ) with Rutile Crystal Structure M. Kavosh (1)H. Moallemian (2)A. Ighan (3)M. Dehdashti (4) [email protected] Abstract : In this paper, titanium oxides (TiO ) nanoparticles using titanium trichloride salts and ammonium hydroxide synthesized using a combination of reflux and calcination. Based on The SEM images, the synthesized particles had same spherical morphology and of nano scale to nm. XRD analysis showed that the maximum peak intensity seen at sheet ( at angle θ= . °. These sheets are indicators of the rutile phase that conforms to standard card (JCPDS No. ). For better identification of samples EDX analysis and UV-vis and FT-IR spectroscopy was used. Keywords : nano, titanium oxide, reflux, calcination, rutile phase - M.S. Inorganic chemistry, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - M.S. Physic solid state, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran 66 66 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3309901020 Synthesis and Characterization of Cluster Nano-Flowers Zinc Oxide and Study Optical Properties M. Kavosh (1)H. Moallemian (2)A. Momtazan (3)A. Ighan (4) M. Dehdashti (5) [email protected] Abstract : Compared to the other methods, ZnO nano flowers were prepared as an easy by chemical materials such as NH OH and TOA and salt of zinc and very fast method. FT-IR spectra showed a strong band at cm−1 is attributed to the Zn-O stretching band XRD results showed that the obtained ZnO nano flowers were composed of hexagonal wurtzite phase with very good crystallinity. The PL and UV absorbtion spectra showed a broad green band emission and a relatively narrow absorbtion band at 550 and 274 nm respectively. EDX analysis confirmed that the separator substance had removed completely and the product is very pure and only contains compounds of zinc and the oxygen. The images show that ZnO nano flowers with the length of 400nm and 50nm in diameter were synthesized. Keywords : Zinc oxide, nano flowers, hydrothermal method, calcinations - M.S. Inorganic chemistry, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - M.S. Physic solid state, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran - - - Researcher of nano technology, Chemistry Group, Department of Science Behbahan Branch, Islamic Azad University, Behbahan, Iran 67 67 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 33510051026 Materials Nanointerfaces for Regenerative Medicine and Tissue Engineeering Yoshihiro Ito (1) [email protected] Abstract : It is very important to modify the surfaces of biomaterials for regulation of cells in the development of regenerative medicine or tissue engineering. Biomaterials are categorized into three primary types, metallic, ceramic, and polymers. Here the biological modification of biomaterial surfaces such as metals, ceramics, and polymers and the effects of such of biological modifications are discussed. It is well known that cellular compatibility is regulated by three interactions; one is with extracellular matrices (ECM), second with neighboring cells, and third with soluble biosignals such as growth factors. Biomaterial researchers have immobilized ECM, cell adhesion factors, and growth factors on various materials to regulate cellular functions. Herein, biosignaling of ECM, cell adhesion factors, and growth factors are reviewed and biomaterial designs to activate biosignaling mechanisms are discussed. Keywords : Biomaterials, cell regulation, immobilization, micropatterning, fusion protein - Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute - Hirosawa, Wako-shi, Saitama - Japan 68 68 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 33710111027 Two-Step Sintering of Dense Nanostuctured Hydroxyapatite/Titania composite Ali Farzin (1)Mehdi Ahmadian (2)M.H. Fathi (3) [email protected] Abstract : Two-step sintering (TSS) has been applied to suppress the accelerated grain growth of Hydroxyapatite (HA) and Titania (TiO ) nanoparticles in the HA-TiO composites in the last sintering stage. Application of this method showed that the final grain size of HA- wt.%TiO is maintained lower than nm, while through conventional sintering it reaches higher than nm. To find how important the temperatures at sintering steps might be, several TSS regimes were conducted. The results showed that the temperatures were critical at both sintering stages. The optimum regime consisted of heating the green bodies up to ˚C in the first step of sintering and then holding at 1050˚C for about 25h in the second step. This yielded the finest microstructure with no exaggeration in grain growth. The specimens prepared by optimum TSS regime resulted in no pernicious α-TCP phase. Keywords : Nano structured Composites, Two Step Sintering, Hydroxyapatite, Scanning Electron - - - Biomaterials Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran 69 69 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3391017111 Stress Relaxation Behavior of Carboxylated Styrene Butadiene Rubber – MWCNT Nanocomposite F.Abbasi sourki (1)Gh.Bakhshande (2)M.Alimardani (3) [email protected] Abstract : This study examines the stress relaxation behavior of carboxylated styrene butadiene rubber(XSBR)-multiwall carbon nanotube(MWCNT) nanocomposites prepared using a ball mill in the latex form. The subsequent experiments were carried out on solid samples. The stress relaxation experiment can be taken into account among the best approaches to pursue the microstructure of a nanocomposite particularly CNT one. CNT nanocomposites displayed a higher elastic behavior both in opposite and negative imposed second step strains, however, a stronger elastic behavior was observed for negative one. Keywords : Carboxylated styrene butadiene rubber –MWCNT- Relaxation time - Academic member of IPPI, Assistant professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran - Emeritus professor of IPPI, Professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran - M.Sc student of IPPI, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran 70 70 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 3401020112 An Efficient Study on Crystallization Behavior of Poly (ethylene terephthalate)/TiO Nanocomposites M. Farhoodi (1)S. M. Mousavi (2)R. Sotudeh-Gharebagh (3)Z. Emam-Djomeh (4) Abdolrasul Oromiehie (5) [email protected] Abstract : Poly(ethylene terephthalate)/TiO nanocomposite films were prepared by melt blending of PET and anatase TiO . Anatase TiO at three levels ( , and %) added to the polymer matrix. DSC analyses show that the presence of nanofillers noticeably affects the crystallization temperature and final degree of crystallinity of PET. The crystallization temperature moves to higher temperatures in comparison to neat PET while the value of melting point does not change considerably. TiO nanoparticles play the role of heterogeneous nucleus and generally promote the crystallization process in the obtained PET/TiO nanocomposites. The glass transition of nanocomposites was not changed significantly with increasing TiO content which confirms weak cross-linking reaction between PET chains and TiO nanoparticle surface. Keywords : Poly(ethylene terephthalate), TiO , Nanocomposite, Crystallization, Glass Transition - - - Department of Food Science & Technology, Faculty of Agricultural Engineering, University of Tehran, Karaj, Iran - Multiphase Systems Research Lab, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran - Iran Polymer and Petrochemical Institute, Tehran, Iran 71 71 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 35410621117 Formation Mechanism of TiCr Intemetallic by Calciothermic co-reduction Method O. Bayat (1)A. R. Khavandi (2)R. Ghasemzadeh (3) [email protected] Abstract : In this work, TiCr intermetallic was successfully synthesized by calciothermic coreduction of the TiO and Cr O powders. Differential thermal analysis and X-ray diffraction were used for determining the formation mechanism of this compound. It was found that the molten Ca reacts with Cr O through an exothermic reaction at about °C and Cr and CaO were formed. By increasing the temperature, CaTiO was formed because of the reaction of CaO and TiO . As the temperature increased to about °C, Ti was formed because of the Ca reaction with the remained TiO and CaTiO through an exothermic reaction. Finally, TiCr was formed by the mutual diffusion of Ti and Cr elements. The obtained TiCr powder contained ppm oxygen and showed the capability of a hydrogen absorption material after activation. Keywords : TiCr Intermetallic, Calciothermic co-reduction, Differential thermal analysis, Hydrogen - PhD Candidate, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran - Associated Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran - Professor, School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran 72 72 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 36610981120 Effect of anodizing electrolyte temperature on Al-epoxy bonding strength S. Mohagheghi (1)A. Hatefi (2)A. Kianvash (3) [email protected] Abstract : Adhesive bonding of aluminum requires activating of surface to improve the adhesion process. A thin layer of anodized aluminium oxide, containing nano-sized pores leads to a strong polymer/metal bond. In this work, an epoxy coating was applied on Al anodized surfaces. A wt.% H PO solution was utilized as an electrolyte. The effect of the electrolyte temperature in the range between - °C on the adhesion strength was examined using a pull-off method. Surface morphology and topography were identified, using FE-SEM and AFM, respectively. Effects of surface topography on hydrophilic behavior of the nano structured Al anodized layer were investigated using a contact angle test. Changes in the anodizing conditions led to remarkable improvements in adhesion strengths. Keywords : Anodizing, Electrolyte temperature, Adhesion, Epoxy coating - M.Sc Student, Department of Materials Engineering, Faculty of Engineering, Islamic Azad university, South Tehran Branch, Iran - M.Sc Student, Department of Materials Engineering, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran - Professor, Department of Materials Engineering, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran 73 73 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 37111131123 Catalytic Activity of Machanochemically Prepared StrontiumDoped Nanostructural Lanthanum Manganite H.Tamaddon (1)A.Maghsoudipour (2) [email protected] Abstract : The fuel cells (FC) are distinguished as generating of distributed energy and are electrochemical devices of low environmental impact. In current work, the strontium-doped lanthanum manganite, a ceramic material used as cathode in solid oxide fuel cells (SOFCs). The nanocrystalline La Sr MnO (LSM) was prepared by varying the milling time of planetary mill during the mechanochemical method. After X-ray diffraction confirms the formation of perovskite LSM the cathode powder was made ready from sintered pellets at oC for hours in air. The gas chromatography (GC) test was used in order to study the catalytic activity of porous LSM cathode material in methane gas conversion and oxygen reduction. For investigate the volume percent, size and distribution of porosities secondary electron microscopy (SEM) imaging was utilized. The results of this research confirmed that by increasing grinding time as an important factor in LSM mechanochemical synthesis, the catalytic characteristics as well as pore distribution is modified. Keywords : SOFC, LSM cathode, mechanochemicl synthesis, nanocrystallite, catalytic activity - M.S. student, Ceramics Department, Materials and Energy Research Center, Tehran - Professor assistant, Ceramics Department, Materials and Energy Research Center, Tehran 74 74 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 37511251124 Construction and Stability of Glucose Biosensor Based on Carbon Past Electrode Modified with Colloidal Gold Nanoparticles Nahid Hossein Fakhrabadi (1)Ali Asghar Rohani (2)Afshin Farahbakhsh (3)Saeed Sohrabi (4) [email protected] Abstract : Using glucose biosensor is important in detection various amounts of glucose. In this paper, a biosensor electrode called (Aunano/CPE) electrode was prepared which is a modified carbon fermentation electrode with colloidal gold nanoparticles composed of carbon graphite powder, paraffin oil and colloidal gold nanoparticles ( nm dia.) and put in contact with glucose oxidase enzyme in the presence of phosphate buffer by a semi-permeable membrane. Ag/AgCl reference electrode and (Aunano/CPE) electrode were used for performing biosensor amperometric and glucose was detected in a definite concentration range by applying V constant potential to the electrodes. Experiment design was performed by Taguchi method for both glucose concentration and pH factors on three levels for which the optimum values were obtained as mM and , respectively. The biosensor remained stable for days based on the activity of glucose oxidase enzyme in optimum conditions. Keywords : biosensor, electrode, glucose, amperometric, glucose oxidase - M.Sc. Student, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran - Assistant Professor, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran - Assistant Professor, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran - M.Sc. Student, Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran 75 75 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors 37711311125 Investigation of ring opening polymerization of octamethylcyclotetrasiloxane by N-anionic nanostructured polyaniline Leyla Shadi (1)Homa Geibi (2)Kazem Dindar Safa (3)Ali Akbar Entezami (4) [email protected] Abstract : Nanostructured polyaniline was synthesized through the chemically oxidative polymerization with interfacial method. The interfacial method is a facile chemical route to preparation of high-quality polyaniline nanofibers under ambient conditions using aqueous/organic interfacial polymerization. The nanofibers have nearly uniform diameters. The synthesis is based on the well-known chemical oxidative polymerization of aniline in a strongly acidic environment, with ammonium peroxydisulfate as the oxidant. Instead of using the traditional homogeneous aqueous solution of aniline, acid, and oxidant, the polymerization is performed in an immiscible organic/aqueous biphasic system, to separate the byproducts (inorganic salts, oligomers, etc.) according to their solubility in the organic and aqueous phases. Keywords : conducting polymer, graft polymerization, polydimethylsiloxane, chemical modification, N- - P. H .D. student of polymer chemistry, Lab. Of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - Professor of organic chemistry, Lab. Of Organo Silicone, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - Professor of polymer chemistry, Lab. Of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran 76 76 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 38311491127 Fabrication of highly ordered gold nanorods film by thermal evaporation of gold into a porous anodic alumina Zahra Soltani (1)Mohammad Noormohammadi (2)Fahimeh Behzadi (3) [email protected] Abstract : A simple method for fabrication of high ordered gold nanorods film is introduced. The procedure is based on thermal evaporation of gold into a porous anodic alumina film. The porous anodic alumina film was fabricated by combining the hard and mild anodization. It was found that gold nanorods configuration affected by the porous anodic alumina film structure such as pore diameter and length. Furthermore the evaporation process change the rods diameter along the nanopores via the decreasing the pore mouth during the gold deposition. Keywords : Gold nanorod, Porous anodic alumina, Thermal evaporation - Faculty member, Department of Physics, Shiraz Branch, Islamic Azad University, Shiraz, Iran - - Ph. D student, Department of Physics, Shiraz University, Shiraz, Iran 77 77 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 38411521127 Produce A Aluminum alloy foam by using silicone rubber granules R.Pourgholam (1)S.M.H.Mirbagheri (2)S.H.Mirdamadi (3) [email protected] Abstract : Metal foams are among those new materials that are recently used for many industrial applications for their special properties. An economical innovation procedure has been proposed to produce metal foams. In this innovation method, It used to silicone rubber granules as spacer to make voids and cellular structure in molten Aluminum (A ). The effect of size and percent of silicone granules on mechanical behavior and density of Metal foams has been studying. Keywords : A composite foam, Casting, Silicone rubber granules, Mechanical properties - M.S. degree on Metallurgy engineering, Amirkabir University of Technology - Assistant Professor, Amirkabir University of Technology - B.S. degree on Metallurgy engineering, Majlesi Azad University 78 78 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 38611581128 Evolution of microstructure texture for multilayered Al ( )/Al ( ) composites by accumulative roll bonding process S. Akhavan (1)A. Tahvilian (2)A. Saghayannejad (3)M. Toroghinejad (4) [email protected] Abstract : Accumulative roll-bonding (ARB) process is an intense plastic deformation process that has been performed for a multilayered Al/Al composite from pure Aluminum ( ) sheets and Aluminum-Magnesium ( ) sheets to develop ultra-fine grains below µm in diameter and to improve mechanical properties. The ARB process up to six cycles is performed at ambient temperature under unlubricated conditions. The ultra-fine grains surrounded by clear boundaries begin to appear at the third cycle, and the specimen after six cycles shows a microstructure covered with nano-grains with an average diameter of nm. The hardness of the specimens ARBed by one, three and five cycles varies inhomogeneously in the thickness direction; having peak values near the surface and the center. This is due to the redundant shear strain and wire brushing. It has been seen that the textural evolution has no similarity with the simple shear texture; the components can be well represented by the ideal rolling texture components. Texture analysis revealed fiber textures have been discovered with continuous of the ARB process cupper. Brass, S and Rotated Cubic textures identify which their differences are in intensity of ARB process. Keywords : Accumulative roll-bonding, Aluminum ( ), Aluminum-Magnesium, textures, Cubic textures - - M.Sc, Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran - M.Sc, Islamic Azad University, Najafabad Branch, Isfahan, Iran - Associate Prof., Engineering Group, Material Engineering Department, Isfahan University of Technology, Isfahan,iran 79 79 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 38811641128 Meso Finite Element Modeling of Triaxial Braided Composites Arezu Emami-Khalkhali (1)Hossein Hosseini-Toudeshky (2) [email protected] Abstract : Among textile composites, braided composites have received increasing attention from scientists due to their exceptional mechanical properties and are utilized in aerospace, automobile and marine industries. Meso-scale finite element (FE) modeling of textile composites is a powerful tool for homogenization of mechanical properties, study of stress– strain fields inside the unit cell, determination of damage initiation conditions and sites and simulation of damage development. This paper takes into account the finite element analysis of a triaxial braided carbon/epoxy composite unit cell (TBC), applied in the aerospace industry, under periodic boundary condition from meso approach. The geometry modeling in meso FEmodeling has been accomplished by ABAQUS-V.6.10.1 software. The general homogenized properties of the entire unit cell have been obtained in two directions of axial tows and transverse by having the mechanical properties of tows and resin separately. Keywords : Triaxial Braided Composites, Periodic Boundary Condition, Finite Element Analysis - M.Sc. Graduate, Amirkabir University of Technology, Faculty of Aerospace Engineering, Tehran, IRAN -prof., Amirkabir University of Technology, Faculty of Aerospace Engineering, Tehran, IRAN 80 80 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 39211761129 Bio-corrosion and Biocompatibility evalution of Ni-free Zrbased bulk metallic glasses Amin Monfared (1)Shahab Faghihi (2)Mana Novin (3) [email protected] Abstract : Bulk metallic glasses (BMGs) demonstrate attractive properties for potential biomedical applications, owing to their amorphous structure. Two Ni-free Zr-based BMGs with composition of Zr Cu Fe Al and Zr Cu Fe Al (at.%) were prepared by suction casting technique for this study and their feasibility as biometallic materials were evaluated by studying bio-corrosion and biocompatibility behavior. Bio-corrosion experiment was performed in phosphate buffer solution (PBS, pH= ) at C and Surface morphologies and corrosion products in corroded locations were investigated by scanningelectron microscopy (SEM) and energy dispersive X-ray (EDX) respectively. It was found that Zr Cu Fe Al had higher passive region than that of Zr Cu Fe Al however these BMGs were susceptible to pitting corrosion. Biocompatibility evalution performed by surface wettability and cell attachment using MG osteoblast cells. Pre-immersion treatment in vol% HNO solution performed for stabilizing Zr-oxide formed on the BMGs surfaces before surface wettability and cell attachment studies. Experiments Results showed that immersed BMGs in vol% HNO solution had significantly higher surface hydrophilicity and attached cells when compared with conventional biometal of Ti- Al- V. Keywords : Ni-free Zr-based bulk metallic glasses, bio-corrosion, biocompatibility - M.Sc. Student, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran - Ph.D, director of Tissue Engineering and Biomaterials Research Center in Ntional Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran - - M.Sc. Student, Tissue Engineering and Biomaterials Research Center, Ntional Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran 81 81 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 39411821129 Synthesis of thermosensitive PVA-g-NIPAAm nanohydrogels by radiation polymerization Marziyeh Fathi (1)Ali Reza Farajollahi (2)Ali Akbar Entezami (3) [email protected] Abstract : Thermosensitive nanohydrogels that are triggered by changes in environmental temperature thus resulting in in situ hydrogel formation have recently attracted the attention of many investigators for biomedical applications. In addition, Nanohydrogel are considered suitable drug delivery systems for their unique features, such as a large surface to volume ratio, and for the possibility to tune their size and properties. In the present work, nanohydrogels of poly (vinyl alcohol) -g-N-isopropyl acrylamide (PVA-g-NIPAAm) are synthesized with too lower X-ray radiation dose between - Gy of PVA and NIPAAm dilute aqueous solution at ambient temperature in the presence of tetrakis(hydroxymethyl) phosphonium chloride (THPC) due to its rapid oxygen scavenging abilities and hydrogen peroxide as a source of hydroxyl radical. Keywords : Nanohydrogels, thermosensitive, radiation, swelling, N-isopropylacrylamide - Ph.D student of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - Medical physics department, Faculty of medicine, Tabriz University of Medical Science, Tabriz, Iran - Professor of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran 82 82 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 39511851129 Novel Amphiphilic block copolymer of Poly (citric acid)-bPoly (L-lactide)-b-Poly (citric acid) with ABA architecture: Synthesis, Characterization and Micellization Homa Gheybi (1)Ali Akbar Entezami (2) [email protected] Abstract : A novel biodegradable amphiphilic ABA block copolymer poly(citric acid)-b-poly(Llactide)-b-poly(citric acid), (PCA-PLLA-PCA), was synthesized by melt polycondensation reaction of citric acid and hydroxyl telechelic poly(L-lactide). In this block copolymer, block (B) is linear PLLA and block (A) bringing both hydrophilicity and functional group along the backbone for biomolecule coupling, is poly (citric acid) (PCA) block. Citric acid is a nontoxic metabolic product of the body (Krebs or citric acid cycle), and has been approved by the Food and drug administration of the United States (FDA) for its use in humans. It was found that the citric acid can be reacted with a variety of hydroxyl containing monomers at relatively mild conditions. The chemical structure of the resulting copolymer was characterized by various analytical techniques such as Fourier transform infrared spectroscopy (FT-IR), H nuclear magnetic resonance ( H NMR) spectroscopy, gel permeation chromatography (GPC), thermal gravimetry analysis (TGA) and derivative thermal analysis (DTG). The successful preparation of the linear hydroxyl telechelic polylactide and PCA-PLLA-PCA block copolymer was confirmed by H NMR. Keywords : Block copolymer, Micelle, Polylactide - PhD student of polymer chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - Professor of polymer chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran 83 83 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 39611881130 The effect of La Sr CoO nanoparticles on nano electro mechanical systems by XRD, X-powder and SEM techniques Neda Ghorbanzadeh (1)Ali Bahari (2)Najmeh Araghi (3) [email protected] Abstract : In this study, the effects of LSCO ((La Sr )CoO ) on both nano electro mechanical and nanostructural properties have been investigated. We have performed a series of experiments to synthesis LSCO nano particles with using sol-gel method and study the sample structures with XRD (X-ray diffraction), SEM (Scanning Electron Microscopy) techniques and X-Powder( based on Debye-Scherrer formula) method. The obtained results indicated that the LSCO with amorphous structure can be used as a good gate dielectric material for the future of MISFET (Metal Insulator Semiconductor Field Effect Transistor) transistor. Keywords : Nano transistor, LSCO, gate dielectric and sol-gel method - MSc, Department of Physics, Islamic Azad University Fars Science and Research branh, Iran - Dr, Department of Physics, University of Mazandaran, Babolsar, Iran - MSc, Department of Physics, Islamic Azad University Hamden Science and Research branch, Iran 84 84 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 39711911130 Synthesis and Characterization of zinc powder using reduction method by natural gas S.Rahimi.M (1)J.Moghaddam (2) [email protected] Abstract : Zinc nano powder was produced by a novel efficient method. The procedure of synthesis is the combination of reforming of natural gas and reducing of zinc oxide in a single unit. This phenomenon involves the reduction of zinc oxide by natural gas as a reducing agent for production of zinc vapors. Then the condensation of solid particles occurs on a low temperature copper substrate which is placed at the end of the furnace tube. Zn particles with an average crystallite size of nm were formed. Since most properties of fine particles are size dependent, the particle size as a critical property have been determined in this article. Different characterization methods such as X-ray diffractometry (XRD), scanning electron microscopy (SEM), laser particle size analyzer and energy-dispersive X-ray spectroscopy (EDX) were used. Effect of parameters on average particle size of samples was investigated. Keywords : zinc particles, Nano crystallites, reduction, characterization - MSc student, Materials engineering department, Sahand University of Technology, Tabriz, Iran - Assistant professor, Materials engineering department, Sahand University of Technology, Tabriz, Iran 85 85 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 39811941130 Growth and investigation of nanostructural properties of perovskite nano tubes by XRD, X-powder and SEM techniques Salileh Asadollahzadeh (1)Ali Bahari (2)Najmeh Araghi (3) [email protected] Abstract : Nanoparticle of lanthanum strontium cobalt ( La Sr CoO ), a complex perovskitetype oxide has been synthesized by using sol-gel method. The nanoparticles thus obtained have been characterized by powder X-ray diffraction, X-powder ( based on Debye-Scherrer formula ) and scanning electron microscope ( SEM ). The XRD analysis of the gel reveals that phase pure LSCO powder is formed at C without detection of any intermediate crystalline phase. Keywords : lanthanum strontium cobalt, nanoparticles, sol-gel method, SEM and XRD - MSc, Department of Physics, Islamic Azad University Fars Science and Research branh, Iran - Dr., Department of Physics, University of Mazandaran, Babolsar, Iran - MSc, Department of Physics, Islamic Azad University Hamden Science and Research branch, Iran 86 86 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 39911971130 Microstructure Refining of a Cast TiAl alloy via Homogenizing and Post Heat-Treatment Processes Siavash Zamani (1)Hekmat Razavizadeh (2)Mohammad Jahazi (3) [email protected] Abstract : In the present study, the homogenizing and post heat-treatment processes were employed to refine the as-cast microstructure of a TiAl alloy. In order to this reason, microstructure evolution, phase consistence and hardness of the alloy were characterized and studied using optical and scanning electron microscopies and Vickers micro-hardness measurements. The nominal composition of the cast alloy was Ti- Al- Cr at.% which produced using the vacuum arc re-melting (VAR) process. Initial microstructure of the cast ingot was a large size columnar structure and different post heat-treatment routs were designed so that the final structure was a fine duplex (DP) microstructure. Homogenizing process was performed at °C for hours in the controlled atmosphere. Also, in order to find the optimized heat-treatment cycle, the effects of variations of heating rate in range of ° C/min to °C/sec, solution temperature in range of to °C, solution time in range of to min and cooling rate in range of °C/min to water quench condition, on the characteristics of the microstructure evolution and different phases present in the structure were studied. Analysis of the results indicated that, a combination of heating and cooling rates increasing and selection of optimum solution temperature leads to achieve a fine duplex microstructure. Keywords : TiAl, heat treatment, microstructure, refining, hardness - Master of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Mechanical Engineering, Department of Mechanical Engineering, Ecole de Technologie Superieure, Montreal, Canada 87 87 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 40012001130 The Effects of Chromium Addition on the Mechanical Properties of a Binary TiAl Alloy at Elevated Temperatures Siavash Zamani (1)Hekmat Razavizadeh (2)Mohammad Jahazi (3) [email protected] Abstract : In the present study, the influence of chromium addition on the mechanical behavior of a binary TiAl at elevated temperatures was studied. The compositions of the binary and ternary alloys was Ti- Al and Ti- Al- Cr at.% prepared and cast using vacuum are remelting (VAR) process. Homogenizing and a post heat-treatment processes were employed and performed on the cast ingots to refine the microstructure of the samples to a refined duplex (DP) structure. Tension test at elevated temperatures was selected as a representative for the mechanical behavior of the alloys. Tensile yield and ultimate strengths and elongation of the samples were tested and measured at ambient temperature, , , , , and °C. In the other hand, optical and scanning electron microscopies followed by energy dispersive X-ray spectroscopy (EDS) and image analyses were used to characterize the microstructure of the samples. It was found that Cr addition to about at.% can increase both the strength and ductility of TiAl in ambient and elevated temperatures. The yield strength and elongation of the binary alloy were improved for about % and % respectively at ambient temperature and % and % at °C. The ultimate strength of both alloys was increased about and % for binary and ternary alloys in temperature range of °C. Moreover, it was cleared that chromium can perform such effects by changing in both the microstructural and interstitial features of binary TiAl. The effects of Cr on the strength and ductility of the alloy were intensified drastically above °C which showed the thermally activated nature of the performed changes. Keywords : Titanium Aluminide, Chromium, Mechanical Properties, Alloying Design - Master of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Mechanical Engineering, Department of Mechanical Engineering, Ecole de Technologie Superieure, Montreal, Canada 88 88 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 40112031130 he Effects of V and Cr Addition on the Deformation Mechanisms and Mechanical Behavior of a Binary TiAl Alloy Siavash Zamani (1)Hekmat Razavizadeh (2)Mohammad Jahazi (3) [email protected] Abstract : In the present study, to determine the influence of the Vanadium and Chromium additions on the deformation mechanisms of the TiAl based alloys, theoretical and experimental approaches were used. In one hand, the changes of electronic structure parameters in the lattice of ternary TiAl alloys were calculated by employing the discrete variational Xα cluster method. Calculations were set such to consider the ternary TiAl containing third alloying elements for about at.% in the hypothetical composition. Parameters changes of the bond strength, the bonding anisotropy ratio and the lattice resistivity to the micro-deformations, by addition of V and Cr alloying elements were calculated and discussed. In the other hand, experimental tension tests were designed and carried out at ambient temperature on the standard samples of the Ti- Al, Ti- Al- V and Ti- Al- Cr alloys which produced with the similar compositions to those calculated. Calculations results show that addition of V and Cr alloying elements to binary TiAl can increase the yield strength of the alloy by increasing the lattice resistivity to motion of preferred dislocations. Also, addition of both the Cr and V alloying elements results in improving the ductility of TiAl alloys by reducing the resistance of the lattice to motion of the l/ < ] ordinary dislocation and / > < ] superdiclocation relative to the >< ] superdislocation which is in agreeing with the experimental results. Moreover, Results show that the Cr addition has more ductilizing effect on the binary TiAl compared to the V because of the fact that addition of Cr has a larger influence on nearing the tetragonal ratio to Keywords : TiAl, deformation mechanisms, discrete variational-Xα method, mechanical behavior, alloy - Master of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Materials and Metallurgical Engineering, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology, Tehran, Iran - Professor of Mechanical Engineering, Department of Mechanical Engineering, Ecole de Technologie Superieure, Montreal, Canada 89 89 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 40212061130 Synergistic Effect of ZnO and Functionalized Carbon Nanotube on the Improvement of Filler Dispersion F.Abbasi sourki (1)M.Alimardani (2)G.R.Bakhshandeh (3) [email protected] Abstract : In this study preparation of carboxylated styrene butadiene rubber (XSBR), multiwall carbon nanotube nanocomposite (MWCNT) was investigated by using a ball mill and in the latex form. Rheological properties such as storage modulus and viscosity along with FT-IR spectrums were used to follow the microstructure of nanocomposite. The results showed that addition of ZnO, along with functionalized carbon nanotube can effectively activate the carboxylated latex and consequently improve the rheological properties of nanocomposite. Keywords : Carboxylated styrene butadiene rubber (XSBR)- Rheological properties-MWCNT-ZnO - Academic member of IPPI, assistant professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran - M.Sc student of IPPI, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran - Emeritus professor of IPPI, professor, Rubber Group, Processing Department, Iran Polymer and Petrochemical Institute (IPPI),Tehran, Iran 90 90 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 40412121130 Surface analysis of polyvinyl chloride/kaolin nanocomposites Mazeyar Parvinzadeh Gashti (1)Hengameh Allahyary (2)Pouya Nasraei Ghomi (3) [email protected] Abstract : Polymeric nanocomposites are a class of materials in which nanoscale particulates such as layered clays or spherical inorganic minerals are dispersed within polymeric matrices. In this paper, poly (vinyl chloride) (PVC) based nanocomposites containing kaolin was prepared by melt compounding. Influence of kaolin on surface properties of PVC was investigated by the use of various surface analysis instruments including atomic force microscopy (AFM), scanning electron microscopy (SEM) and reflectance spectroscopy (RS). AFM and SEM figures of the resultant nanocomposites illustrated increased surface roughness compared to pure PVC. Optical properties of nanocomposite films were finally determined by the aid of reflectance spectrophotometer. It can seen from optical measurement of composites containing kaolin particles that reflectance curves changes after incorporation of kaolin in composite. Keywords : Polyvinyl chloride; Kaolin; SEM - - - Department of Textile, Islamic Azad University, Shahre Rey Branch, Tehran, Iran 91 91 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 40512151130 Superabsorbent nanohydrogels of poly (N-isopropyl acrylamide –co-itaconic acid) grafted on starch: Synthesis and swelling studies Karim Pourjamal (1)Marziyeh Fathi (2)Roghieh Alizadeh (3)Ali Akbar Entezami (4) [email protected] Abstract : Poly(N-isopropylacrylamide) (PNIPAAm) hydrogels are attracting more and more interest in biomedical applications because they exhibit a well-defined lower critical solution temperature (LCST) in water around –34◦C which is close to the body temperature. Natural polymers like starch are of considerable interest in the fields of biotechnology, biomedical engineering, and pharmaceutical controlled release devices. In the present work, biodegradable and thermosensitive superabsorbent nanohydrogels were synthesized by graft copolymerization of poly N-isopropyl acrylamide (PNIAAm)/itaconic acid (IA) onto starch via free radical copolymerization in the absence of chemical crosslinker agent. The starch grafted nanohydrogels were characterized by FT-IR and thermal gravimetric analysis (TGA). Dynamic light scattering (DLS) showed 60-100 nm size distribution for the synthesized hydrogels. TGA studies indicated that grafting of poly(NIPAAm-co-IA) onto starch leads to an overall improvement in the thermal stability. The effect of different amount of ammoniumpersulfate as the polymerization initiator, on the water absorption of the superabsorbent polymers, pH sensitivity and thermal behaviors were investigated. The water absorption of the grafted copolymer synthesized by 10.0 wt% APS gave the highest water absorption degree of 45 g /g. Hydrogels were sensitive to environmental pH. So, the swelling behaviors of the superabsorbent nanohydrogel were studied at various pH values between 3 and 12, at room temperature. Under acidic pH values (3), most of the carboxylate anions are protonated, so the main anion–anion repulsive forces are eliminated and consequently swelling values are decreased. At higher pH values, some of the carboxylate groups are ionized and the electrostatic repulsion between COO- groups causes an enhancement of the swelling capacity. The obtained nanohydrogels may potentially be used in biomedicine, pharmaceutics and controlled delivery of bioactive agents. Keywords : Stimuli-sensitive, polymers, Multicompartmental systems, Volume phase, transition - Msc student of organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - - Ph.D student of organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran - Professor of Organic chemistry, Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran 92 92 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4141242121 Synthesis and surface modification of core/shell quantum dots with PEG for biological detection and imaging Hadi Ostadi (1)Mohamad. Alizadeh (2)Soheila yaghmaei (3)Manochehr Hakim (4) Maziar Hakim (5)Hossein Kharghanian (6) [email protected] Abstract : Semi-conductor Quantum dots (QDs) are a unique class of inorganic fluorophore. As a result of their exceptional photophysical properties, they are gathering widespread attention. In this work presented here, cdse/zns core/shell tunable quantum dots were synthesize in two stage by solvothermal method . Their application in biological fluids or aqueous environment requires modulation of chemical nature of quantum dot surfaces. As a result, their solubility is changed and additional chemical functionalities are added. To develop water-soluble, biocompatible QD micelles, the core-shell CdSe/ZnS of red emission were synthesized and capped in poly ethylene glycol (PEG).The resulting QDs-polymer nanocomposite particles are suitable for applications in biomedical imaging and detection, as a consequence of their colloidally stability in water suspensions and exhibition of good photostability. The core/shell structure was proved by approach characterizations such as transmission electron microscopy(TEM), Fourier transform infrared (FTIR), UV- Spectrometry and photo luminescence spectroscopy. Keywords : Quantum dots, Nanoparticle, core/shell, capping agent, PEG - - - MSC student, Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran - Faculty of Polymer and Color Engineering, Amirkabir University of Technology, Tehran, Iran - Associate professor, Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran - Assistant professor, Department of Material science and Engineering , Sharif University of Technology, Tehran, Iran 93 93 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4151245121 Investigation on the wear behavior of Cu/TiO Nanocomposites Produced by Powder Metallurgy and internal oxidation A.H.Moghannian (1)A.Abazarpoor (2)M.R.Gharabeick (3)A.Bahrami (4) S.K.Sadrnezhad (5) [email protected] Abstract : Electrical contacts should have good thermal and electrical conductivity and certain strength. The copper base nano-composites reinforced with fine TiO particles have almost identical electrical and thermal conductivity with copper; in addition, because of the dispersion of the fine TiO particles, Cu/TiO composite has more strength than pure Cu, which improves copper matrix strength through impeding dislocation movement. In this work, first Cu and Ti powders were mechanically alloyed for h under Argon atmosphere and then Cu O powders were added as oxidant. The specimens, containing different amounts of TiO were produced by in-situ oxidation of Cu-Ti pre-alloyed powders. For compaction, at the first step powders pressed under MPa pressure at °C and then pressed at MPa in room temperature. The compact was then sintered at °C for h under argon atmosphere. Physical and mechanical properties such as density, specific electrical resistivity and hardness of the products were altered with amount of TiO in Cu matrix. Microstructure and composition of the specimens were studied before and after internal oxidation using SEM equipped with EDS analyzer. Keywords : Copper base nanocomposite, TiO particles, internal oxidation, wear rate, pin on disk - - M. Sc Student, Dept of materials science and engineering in Sharif University of Technology - - B. Sc Student, Dept of materials science and engineering in Sharif University of Technology - Professor, Dept of materials science and engineering in Sharif University of Technology 94 94 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4181254121 Preparation and characterization of high energetic Al/Ni coreshell nanostructures H. Beigi Nasrabadi (1)M. zarei (2)B. Shahabi Kargar (3)S.A. Sajjadi (4) [email protected] Abstract : Aluminum powders are mainly used as energetic additives for propellants. However, particle agglomeration, formation of protective oxide layers on the aluminum particles and high ignition delay time and low ignition velocity of particles, in particular when nano particles are used, lead to incomplete burning of Al particles and subsequently decreasing the propellant efficiency. In this study in order to improve combustion behavior of aluminum particles, nanometric nickel shell coated on the surface of aluminum nanoparticles. Fabrication of such A/Ni core- shell nano structures by electroless nickel deposition (EN) investigated and high efficiency EN process modeled using Artificial Neural Network (ANN) media. Based on presented model it is possible to design an EN bath with the maximum plating rate, while minimum materials are used and maximum efficiency of process are appeared. These samples charactrizated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The results shows, Ni particles were deposited on the surface of aluminum nano particles and form a thin and uniform nickel shell within about nm thickness around aluminum cores. Keywords : aluminum nano particles; Electroless nickel (EN) deposition; Artificial neural networks (ANN) - M.Sc student, Ferdowsi University of Mashhad, P.O. Box - - M.Sc student, Sharif University of Technology, P.O. Box , Mashhad, Iran - , Tehran, Iran - - Noah Research Center, Mashhad, Iran - Professor, Ferdowsi University of Mashhad, P.O. Box - , Mashhad, Iran 95 95 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 4221266121 Effects Initial Press Pressure on of MoSi - vol% WSi Composite Synthesized to SHS Method R. sayad (1)S.A. Tayebifard (2)K. Ahmadi (3) [email protected] Abstract : MoSi has been used widely as heating elements due to its high electrical conductivity, thermal shock resistivity, and remarkable oxidation resistivity in high temperatures. On the other hand, monolithic MoSi shows extreme brittleness and poor impact strength at lower temperature, and low strength and creep resistance at elevated temperature (> ). To overcome these weaknesses, solid solution of MoSi /WSi was prepared by Self-Propagating High Temperature Synthesis (SHS). For this purpose, W, Mo, and Si powders with specific stoichiometric ratio were mixed by shaker to obtain solid solution of MoSi - vol% WSi .The obtained mixture was pressed by a uniaxial press under pressures , , , and MPa in order to prepare green discs. Then, these discs synthesized in an atmosphere control reactor. During synthesis process, the temperature of ignition and combustion were measured and obtained and respectively by thermocouple. Finally, the characteristics and morphology of the solid solution were studied by X Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) respectively. Keywords : MoSi - vol% WSi , combustion synthesis, composite, high temperature materials - Student, Semi- conductor Group, Material Engineering Department, Materials & energy research, Karaj, Iran - - Assistant professor, Semi- conductor Group, Material Engineering Department, Materials & energy research, Karaj, Iran 96 96 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 4271281121 Nanowire based cell for Harvesting Energy From in-vivo environment Abdolhossein Sa'aedi (1)Hossein Rouzegar (2)Alireza Malahzadeh (3) a.h,[email protected] Abstract : This paper discusses technologies used to harvest energies from in-vivo environment. The discussion mainly concentrated on nanogenerators based on nanowires which are employed for converting chemical energy (chemical interplay in body), biomechanical energy (such as muscle stretching), vibration energy (such as heart rate sound, sound waves) and biohydraulic energy (such as blood flow, contraction of blood vessel) into electric energy. At the end this paper studies an approach for harvesting biomechanical and biochemical energies from living organisms simultaneously. This system, by using aligned nanowire arrays, can power medical nanosystems and nanodevices through converting vibration, biomechanical and biohydrulic energies into electricity. On the other hand by using biofuel cell structure, this hybrid cell can convert biochemical (glucose/O ) energy in biofluid into electricity. This technology can provide adequate power required for feeding nanodevices and nanosystems or at least to indirectly charge battery of the device. This technology can provide a sound basis for designing wireless self-powered nanodevices with direct energy harvesting from in-vivo environment. Keywords : in-vivo environment, Biofuel Cell, nanogenerator, nanowire, self powered nanosystem - MSc student, Department of Electronics, bushehr branch, Islamic Azad University, Iran, Bushehr - MSc student, Department of Electronics, Golpaygan Payam University, Iran, Golpaygan - Assistant professor, Department of Electronics, bushehr branch, Islamic Azad University, Iran, Bushehr 97 97 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4311293121 Structural and Magnetic Properties of Nanocrystalline SrFe O Hexaferrite by Co-Precipitation Method Arvin Eskandari (1)Mansoureh Ganjali (2)Masoud Aminzare (3) [email protected] Abstract : Nanocrystalline strontium hexaferrite (SrFe O ) powders have been synthesized using the Co-precipitation method. The ferrite precursors were achieved from mixtures of strontium and ferric chloride in a aqueous media whit out any surfactants and soft templates. After washing and drying, the as-received powder were calcinated at different temperatures at and oC for constant annealing time h in an air atmosphere. The powders formed were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and Vibrating Sample Magnetometer (VSM). It was found that the single-phase SrFe O powders were obtained by increasing the calcination temperature at oC for h. Moreover, the results indicated that the maximum saturation magnetization ( emu/g) was achieved by increasing the annealing temperature oC because of the formation of a nanocrystalline powder. Wide coercivities ( –5100 Oe) can be achieved at different synthesis temperature. Likewise, the microstructure and the magnetic properties of the produced Sr–M ferrite powder were strongly dependent on the synthesis temperature. Keywords : Hexaferrite, Synthesis, Magnetic properties, Co-precipitation - MSc Student, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre(MERC),Karaj, Iran - PhD, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre(MERC),Karaj, Iran - Researcher, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran 98 98 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 4351305121 Evaluation of mechanical properties of Al/NiP composites fabricated by accumulative roll bonding (ARB) process Hossein Baharipour (1)Habib Danesh Manesh (2)Gholamreza Shahri (3) [email protected] Abstract : In this study, aluminum matrix composite reinforced by micron nickel powder was successfully produced and the effects of number of ARB cycles and the amount of nickel content on the mechanical properties of composites were investigated. The results compared with ARB processed monolithic aluminum. According to the results of tensile tests, it is shown that the tensile strength of the composite, as a function of nickel content, has a maximum value at vol.%, which is times higher than that of the annealed aluminum. It is also found that the tensile strength and hardness of the ARB processed composites and monolithic aluminum increase with the number of cycles. However, the tensile strength and hardness of the composites are much higher than those of the monolithic aluminum. The tensile test results revealed that the elongation of the composites is lower than that of the monolithic aluminum. Keywords : Metal matrix composites, Accumulative roll bonding, Aluminum composites, Mechanical - - Student of Master of Science, Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shir az, Fars, Iran - Associated Professor, Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Far s, Iran 99 99 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 4401320122 Influence of concentration of antibiotic (Cephalexin) on the rheological behavior of calcium phosphate nano-composite cement pastes R.Shiri (1)S.Hesaraki (2)E.Ghasemi (3) [email protected] Abstract : Injectable calcium phosphate cements (CPC) are widely used as bone substitutes in minimally invasive surgery. The rheological properties play an important role in the process of cement delivery into the bone defects. In this study the influence of Cephalexin on the rheological behavior of CPC was investigated at °C. Different amounts of antibiotic ( –10 wt.%) were added to CPC pastes composed of calcium hydrogen phosphate dihydrate and tetracalcium phosphate at a mass ratio of 1:1 and 3wt.% nano-crystalline hydroxyapatite (nHA) as a nucleating agent. In all exams, amount of CPC was constant, but P/L ratio increased with increasing amount of antibiotic. Rheological properties were measured with rheometer in rotation and oscillation modes. The results showed that CPC pastes containing different percentages of antibiotic at different shear rates exhibited different rheological behaviour. Viscosity increased as amount of antibiotic was increased. Although shear thinning is the main rheological behaviour for all samples at low shear rates. But shear thickening behaviour can be seen at higher shear rates. It reveals that increasing of antibiotic concentration can change the viscosity behaviour of pastes, and it was made by interaction between particles of CPC and antibiotic. Keywords : Rheology, Calcium phosphate cement, Nano-hysroxyapatite, Antibiotic - Master Student, Department of nanotechnology and advanced material, Materials and energy research center, karaj, Iran - Assistant professor, Department of nanotechnology and advanced material, Materials and energy research center, karaj, Iran - Assistant professor, Institute for color science and technology, Tehran, Iran 100 100 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors 4421326122 Piezoelectric Nanowire toward Harvesting Energy From invivo environment Abdolhossein Sa'aedi (1)Mohammad Orvatinia (2)Hossein Rouzegar (3) a.h,[email protected] Abstract : This paper discusses technologies used to harvest energies from in-vivo environment. The discussion mainly concentrated on nanogenerators based on Piezoelectric nanowires which are employed for converting biomechanical energy (such as muscle stretching), vibration energy (such as heart rate sound, sound waves) and biohydraulic energy (such as blood flow, contraction of blood vessel) into electric energy. At the end this paper studies an approach for harvesting biomechanical and biochemical energies from living organisms simultaneously. This system, by using aligned nanowire arrays, can power medical nanosystems and nanodevices through converting vibration, biomechanical and biohydrulic energies into electricity. On the other hand by using biofuel cell structure, this hybrid cell can convert biochemical (glucose/O ) energy in biofluid into electricity. This technology can provide adequate power required for feeding nanodevices and nanosystems or at least to indirectly charge battery of the device. This technology can provide a sound basis for designing wireless self-powered nanodevices with direct energy harvesting from in-vivo environment. Keywords : in-vivo environment, Piezoelectric nanowire, nanogenerator, self powered nanosystem - MSc student, Department of Electronics, Bushehr branch, Islamic Azad University, Iran, Bushehr - The Faculty member, Department of Electronics, Applied Science of Information and Communication Technology, Iran, Tehran - MSc student, Department of Electronics, Golpaygan Payam University, Iran, Golpaygan 101 101 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors 4471341122 Sol-gel Synthesis and Characterization of Barium Strontium Titanate Thin Films A. Najari (1)M.A. Bahrevar (2)A.R. Aghaei (3) [email protected] Abstract : Barium strontium titanate Ba -xSrxTiO (BST) thin films have been prepared by sol– gel technique using barium acetate (Ba(CH3COO)2), strontium acetate (Sr(CH3COO)2) and titanium isopropoxide (Ti(OC3H7)4) as starting materials. Acetic acid and 2-methoxy-ethanol were selected as solvents. BST films of different thickness were deposited layer by layer onto pre-cleaned platinized silicon (Si/Pt) substrates by spin coating. The films were characterized in terms of their crystalline structure (X-ray diffraction) and microstructure (field emission scanning electron microscopy). The results indicate that the BST coatings exhibit perovskite structure when annealed at 700 ˚C. The thicknesses of the BST thin films were measured by spectroscopic ellipsometry in the wavelength range of 200-800 nm at an incidence angle of 70 ˚. Keywords : Barium strontium titanate, Thin film, Microstructure, Sol-gel process, Spin-coating - Student of master of science of ceramic department of Materials and Energy Research Center (MERC) - Associate professor of semiconductor department of Materials and Energy Research Center (MERC) - Assistant professor of ceramic department of Materials and Energy Research Center (MERC) 102 102 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 4511353123 A study on aluminum matrix composite reinforced with a two-dimensional network of interconnected steel wires fabricated by lost foam casting H.R. Pakzaman (1)A.R. Khavandi (2)M. Divandari (3) [email protected] Abstract : The current investigation involves fabrication and characterization of aluminum alloy (A ) matrix composites reinforced with the interconnected, two-dimensional, steel wire performs. The composites were produced by lost foam casting process and were heat treated to get ‘reaction interface’ (RI) Micro hardness and tensile properties of the matrix, as-cast and heat treated composites have been determined and the microstructure of the specimens was examined with optical and scanning electron microscopes. Micro structural characterization conducted on the as-cast composite samples showed some pores at the Al matrix/steel wire interface. However, nearly all the heat treated composites showed a completed bonding because of the formation of reaction layer at the interface. Hardness and strength of composites increased as compared to matrix alloy. The mechanical properties of these composites were measured and the results were correlated with the microstructure observation. While micro hardness of the composite showed variation from to Hv across the interface in the as-cast composite, annealed ( °C) composite showed a micro hardness of Hv at the interface indicating the effectiveness of the heat treatment. The results have been discussed in terms of wetting between steel wires and the matrix, particularly the increase of hardness and tensile strength to the formation of ‘reaction interface’ due to annealing The width of the interface increased with annealing time and temperature. Keywords : Aluminum matrix composites, Reaction interface, Annealing, Mechanical properties, Lost foam - Master of Science, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran - - Associate Professor, Department of Materials and Metallurgical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran 103 103 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4531359123 An Investigation through Reflection Coefficient of a NanoMetallic Grains and Glass Oxide Compound H. Shahmirzaee (1)A. Gharati (2)A.Kamaldar (3) [email protected] Abstract : In this paper the reflection coefficient of a mixture of glass oxide and nanograins of some noble metals (gold, silver and copper) have been derived using T-matrix approach. In addition the effect of spherical metallic nanograin shape on the resonance shift of the reflection coefficient has been analyzed and the associating plots have been plotted. For the three investigated metals, their resonance wavelengths have been altered according to the shapes and orientation of the grains relating to each other. The results obtained from the two used methods, confirm the authenticity of each other. Keywords : Metallic nanograins, T-matrix approach, Reflection coefficient, Glass oxide - Prof., Maleke Ashtar university, Shiraz, Iran - Prof., Shiraz Payam-e Noor university, Shiraz, Iran - M.Sc. Student, Shiraz Payam-e Noor university, Shiraz, Iran 104 104 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4681404126 Fabrication of hight conductive circuits via inkjet printting F.Haghdoost (1)F.Mohtaram (2)V.motaghitalab (3)A.K.Haghi (4) S.M.Bidoki (5)K.Mahfoozi (6) GH.B.Salimi (7) M.Abasi (8) [email protected] Abstract : A convenient method has been developed for applying patterned nickel tracks on polyester fabric for electronic applications. The process comprises inkjet printing of an aqueous palladium (II) solution on surface treated polyester fabric, followed by reduction to metallic palladium and electroless nickel plating. The nano-structure of the nickel pattern was investigated using scanning electron microscopy (SEM) and the size of the nanoparticles were in a rang of nm.In addition the electrical conductivity was evaluated using four probe technique and results showed reliable and stable conductivity about S/m. Using a desktop inkjet printer,the procedure was successfully applied for manufacturing inter digitated conductive pattern as used for many applications such as antenna, electronic circuit, coil, ECG sensor, and capacitor. Keywords : Inkject printing, nickle, electroless, nano particle - - - - - - - Textile engineering department, Faculty of engineering, University of Guilan, Rasht P.O.BOX Rasht, Guilan -Iran - post code: - - - Textile engineering Faculty, Yazd University, Yazd -Iran 105 105 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4691407126 A novel approach for synthesis of silver nanoparticles F.Mohtaram (1)F.Haghdoost (2)V.motaghitalab (3)A.K.Haghi (4) [email protected] Abstract : In recent years metallic nanoparticles have been focused by researchers due to their unique electronic, optical, mechanical, magnetic and chemical properties Silver nanoparticles were prepared by chemical reduction method. Silver nitrate was taken as the metal precursor and sodium brohydrat as a reducing agent. The formation of the silver nanoparticles was monitored using UV-Vis absorption spectroscopy. The UV-Vis spectroscopy revealed the formation of silver nanopartícles by exhibing the typical surface absorption maxima at nm from the UV–Vis spectrum. Keywords : silver, nano particle, UV-VIS, reduction agent - - Student, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran - Assistant professor, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran - Professor, Textile engineering department, Faculty of engineering, University of Guilan, Rasht, Guilan -Iran 106 106 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 4811443127 Mechanical properties and gelation behavior of gel-cast ZrO bodies Seyed Mohammad Mahdi Rouholamini (1)Morteza Zandrahimi (2)Babak Nasr (3) [email protected] Abstract : In this study, zirconia samples are produced by a gel-casting process. The effects of the percentage of polymeric components and the sintering temperature on the green strength and the final bending strength are investigated. The results revealed that increasing the amount of monomer and cross-linker leads to an increase in the green bending strength. However, the final bending strength was decreased. Microstructural investigations indicated that increasing the sintering temperature led to an increase in the grain size and in the relative density. From the viewpoint of sintered density and final bending strength, the best sintering temperature is considered to be °C. Keywords : Suspension, Rheology, Bending strength, Gel-casting - M. Sc. Student, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman - Associate Professor, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman - M. Sc. Student, Department of Metallurgy and Materials Science, Faculty of Engineering, ShahidBahonar University of Kerman 107 107 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 52515751210 Effect of Medium and solvent Changing on Polystyrene Seed Nano-Particles Synthezied via Dispersion Polymerization Ali Bavi (1)Faramarz Afshar Taromi (2)Hormoz Eslami (3) [email protected] Abstract : Nano-particles can prepared from materials with different chemical nature like metals, metal oxides, ceramics, polymers, organic materials, carbon and bimolecular. Polymer colloids are defined as a dispersion of the monodisperse polymeric particles in liquid medium. Researches in this field is interesting for years. Recently a lots of researches are discussed about synthesis of polymeric nano-particles. These nano-particles can be used in different applications like biopolymer, bioelectric improve impact resistance. Synthesized nano-particles based on polymerization method can be spherical or non-spherical, that the methods used in each of them are various and finally the particles are created with different applications. Lots of methods like dispersion, emulsion and suspension polymerizations are used for synthesis of these nano-particles. One of the benefits of this method is performing in two steps, that in the first stage the seed particles are prepared and in the second stage the polymerization can be continued for production of monodisperse composite. Type of solvent, temperature of the polymerization are the factors affecting the shape of nano-particles. In this article, the monodisperse polystyrene (PS) seed particles are produced and the different parameters contributing in production of them are explained. In previous works , ´-azobis(isobutyronitrile) (AIBN) initiator and polyvinylpirrolidone (PVP) stabilizer ware used for synthesis of polystyrene particles, Hence in this article Dimyristyle proxydicarbonate (MYPC) is used and the average diameter of particles (Dn) and coefficient of variation (Cv) also are explained. Keywords : Spherical Nano-particles, Dispersion Polymerization, Monodisperse, Particle Size - MS Student of Polymer Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, Mahshahr, Industrial Area, Khuzestan, Iran - Assistant Professor, Department of Polymer Engineering & Color Technology, Amirkabir University of Technology (Teharan Polytechnic), Tehran, Iran - Professor, Department of Polymer Engineering & Color Technology, Amirkabir University of Technology (Teharan Polytechnic), Te hran, Iran 108 108 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Magnetic materials 55816741212 The Investigation of Effect of Barrium Hexa Ferrite Nano Particles on the magneic Properties And Bonding Srength of Nd-Fe-B Hybrid Magnets Pedram Parsa (1)Mohammad Reza IzadPanah (2) [email protected] Abstract : In the recent study, the feasibility of composing the Nd-Fe-B hybrid magnets was investigated by two approaches. These magnets are used to compose electrical appliances such as electrical engines, etc. In the first approach (i.e. solvent base), three different binders were used as polymer matrix to compose Nd-Fe-B hybrid magnets. In order to solve each binder, different solvents were used. In the second approach (i.e. melting base) the polymer was melted and mixed thoroughly with metallic powder, in order to gain a mixture of metallic powder and the polymer matrix. The resulted product, then, crushed into granules following an injecting by a Mardoni injection instrument. Eventually, the mechanical and magnetic properties of the produced samples were investigated. These produced samples, would never reach their maximum tensile strength, in the room temperature. In the high temperatures, the effect of material hardness, as a function of applied strain, for the samples containing lower solid particles and the samples containing higher solid particles, can be affordable after % strain and % strain, respectively. Keywords : - MSc Student, Shahid Bahonar University of kerman, Kerman - Assistant Professor, Shahid Bahonar University of kerman, Kerman 109 109 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 56216861212 Effect of important factors on synthesis of prussian blue nanoparticle Seyed Ehsan Hoseininasab (1)Amir Heidarinasab (2)Nahid Amiri (3) [email protected] Abstract : In this study evaluate sonication time, stirr time and concentration of materials on size of prussian blue nanoparticles. This study was performed for one reasons, To obtain the desired size of prussian blue nanoparticles. The size of prussian blue nano particles was determined by Particle Size Analyzer (ZETA-SIZER, MALVERN Nano-ZS). Prussian nanoparticles were synthesized by simple chemical method from mixing two solutions, K [Fe(CN) ] solution was slowly added to FeCl •6H2O and 12.5 mol L-1 H2O2 solution under vigorous stirring at room temperature. Sonication time and stirring time as the main affecting factors on the nanoparticle size was investigated. The result showed sonication time about 4 h and stirring time about 2.5 h, and concentration of materials of 2 mg/ml, the formation of prussian blue nanoparticles with diameters between 5-50 nm. Keywords : Prussian blue nanoparticle, sonication, synthesis, stirring - - Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran - Faculty of Science, Department of Biology, Alzahra University, Tehran, Iran 110 110 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 56416921224 Phase evolution of hydroxyapatite nanocomposites during sintering Mohsen Ebrahimi (1)Touradj Ebadzadeh (2)Esmail Salahi (3) [email protected] Abstract : Decomposition of hydroxyapatit strongly affects its mechanical and biological properties. The present work was based on Le Chatelier’s principle which dictates that the presence of water vapour should impede the release of water vapour from hydroxyapatite, and thus suppresses the decomposition of hydroxyapatite to unhydrated calcium phosphate phases. After characterizing the first powders using X-ray diffraction technic (XRD) and scanning electron microscope (SEM), Pure hydroxyapatite, hydroxyapatite wt% alumina and hydroxyapatite wt% titanium mixtures were pressed and sintered in air, moist, and reduction atmospheres at oC for h. In order to study the phase and structural evolution, XRD was used. Phase investigation of sintered bodies showed that, pure hydroxyapatite is stable in all three atmospheres at oC. But, moist and reduction atmospheres were preferred atmospheres to suppress the hydroxyapatite decomposition in hydroxyapatite alumina and hydroxyapatite –titanium nanocomposites, respectively. Keywords : Hydroxyapatite, decomposition, Nanocomposite, Atmosphere, Phase transformation - - - Department of Ceramic, Materials & Energy Rresearch Center (MERC), Karaj, P.O. Box - , Iran 111 111 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 56616981225 Heat operation for synthesis of calcinated hydroxyapatite and loading silver nanoparticles on it H.R.Ebrahimi (1)M.Khodaie (2)M.Modrek (3)N.Mahru (4) [email protected] Abstract : The bioceramics, calcium hydroxyapatite (HAP), is a material which is biocompatible to the human body and is well suited to be used in hyperthermia applications for the treatment of bone cancer. We synthesis hydroxyapatite in modified synthetic body fluid (SBF) solutions at C and pH of using novel chemical precipitation technique. Then after heat operation, on filtered precipitated result HA were produced. For loading the silver nanoparticles (Ag NPs) on the hydroxyapatite we use AgNO solution. And for reducing Ag+ ions apply sodium bohrhydrate solution. The formations of the silver nanoparticles on the HAP structure were confirmed by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM). TEM image show the nanostructure of silver particles, being formed on hydroxyapatite texture. Keywords : Bioceramics; Calcium Hydroxyapatite; silver nanoparticles; synthetic body fluid - - - - Department of Chemistry, Majlesi Branch, Islamic Azad University, Isfahan, Iran 112 112 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 5671701224 Evaluation of Bioactivity of PHB/nHA Composite Scaffold for Bone Tissue Engineering Abbas Saadat (1)AliAsghar Behnamghader (2)Saeed Karbasi (3) [email protected] Abstract : this study is based on the synthesizing hydoxyapatite nanoparticles and the technique used for this purpose was sol gel. Salt leaching and solvent casting technique was adapted for the fabrication of Poly -hydorxybutyrae\Hydorxyapatite nanoparticles. Synthesized hydroxyapatite nanoparticles, polymer and composite were confirmed by XRD. poly ( hydroxybutyrate) without nHA and with and wt % of nHA were prepared. The weight percent of NaCl was . According to the Scanning electron microscopy (SEM) results, the pore size was μm and interconnectivity, morphology and distribution of pores in prepared scaffolds were also uniform. The bioactivity of the scaffolds was demonstrated by immersion in simulated body fluid (SBF) for up to days. Formation of hydroxyapatite crystals on the surface of scaffolds was confirmed by SEM and EDXA. This study indicated that the scaffolds with wt%HA had the best bioactivity for bone tissue engineering. Keywords : Bioactivity, Poly -hydroxybutyrate, NanoHydroxyapatite, Scaffold, bone tissue engineering Department of Materials Engineering, Majlesi Branch, Islamic Azad University, Majlesi New Town Isfahan, Iran - Biomaterials group, Materials & Energy Research Center, Tehran, Isla mic Republic of Iran, Postal code - - Department of Medical Physics and Biomedical enginnering ,school of medicine, Isfahan University of Medical Sciences, Isfahan, Iran 113 113 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 5681704224 Some Aspects of New Advanced High-Mn TWIP steels G. Dini (1)H. shekari (2) [email protected] Abstract : Progressive increase in the research areas related to high manganese TWIP steels has occurred during the past years. In this paper, a review of the relations between microstructure and mechanical properties of TWIP steels is presented mainly focusing on chemical composition, deformation mechanisms, dislocation structure, work hardening behavior, flow stress analysis, heat treatment and neural network modeling. This review of knowledge explains the metallurgical important of TWIP steels as new advanced materials for industrial applications. Keywords : TWIP steel, SFE, mechanical twin, work hardening, advanced materials - Central laboratory, University of Isfahan, Isfahan - , Iran - Department of Materials Engineering, Isfahan University of Technology, Isfahan - , Iran 114 114 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 5691707224 DESIGN AND SYNTHESES OF PHOTO-REACTIVE BIOPOLYMERS Yoshihiro Ito (1) [email protected] Abstract : Various types of photo-reactive or photo-responsive biopolymers have been developed for chemical and medical applications ( - ). Here we will demonstrate some photo-reactive biopolymers for medical applications. One is UV-reactive biopolymers including hyaluronic acid, gelatin, chitosan, and nonbiofouling polymer. Another is visible light-reactive polymer systems. The former was utilized for surface micropatterning for cell culture or preparation of a protein-microarray chip. The latter was for bio-sealants. Keywords : Biopolymer - Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute, - Hirosawa, Wako-shi, Saitama - , JAPAN 115 115 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 5701710224 A Comparison between UV Protection Factor of Fabrics composed of Aluminum and Copper S. M. Eslami Tabaei (1)M. Ghane (2) Abstract : Radiation is energy emission in electromagnetic waves such as, Gamma, ultraviolet, visible, infrared or corpuscle. People are surrounded by things always emitting and absorbing radiative energy at the same time. The past decade has witnessed an alarming increase in the incidence of skin cancer worldwide because of ultraviolet radiation. Therefore protective textiles against ultraviolet radiation seem essential. This paper purpose is to compare the effect of Aluminum to that of Copper on UV protection factor. Using Cotton-Polyester and Nylon as warps and Aluminum, Copper, Cotton-Polyester and Nylon as wefts, six sample fabrics were woven and coded as Cotton-Polyester, Nylon , Cotton- Aluminum, CottonCopper, Nylon-Aluminum and Nylon-Copper. F and Smith were two machines with which samples were woven. Warp and weft density of fabrics were considered constant so that the effect of metal in fabrics structure could be investigated better. Cotton-Polyester and Nylon fabrics were considered as main samples to which other fabrics composed of metal were compared. In other word, Nylon-Aluminum alongside Nylon-Copper and Cotton-Aluminum alongside Cotton-Copper were compared to Nylon and Cotton-Polyester, respectively. Appling two ANOVA and DUNCAN in SPSS statistical software, the level of comparison significance was determined. Regarding the fact that Copper emissivity coefficient is higher than that of Aluminum, results were supposed to indicate more amount of electromagnetic waves absorption in all Copper samples in comparison to Aluminum ones. However, experimental results showed that Copper had no significant effect on ultraviolet protection factor of woven fabrics composed of Cotton-Polyester. By contrast, for Nylon , applying Aluminum metal didn’t cause any significant influence on improving ultraviolet protection factor. Mentioned results could be attributed to different cover factors of woven samples. As results showed, Nylon fabrics with Copper metal as their wefts accounted for better ultraviolet protection. Keywords : Radiation, Radiative energy, Spectroscopy, Emission, Emissivity coefficient - Master of Science student at Textile Engineering Faculty Isfahan University of Technology - Associate Professor at Textile Engineering Faculty Isfahan University of Technology 116 116 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 5711713224 Electroplating of Sol-Enhanced Black Ni Composite Coatings Marzieh Sharifi (1)Wei Gao (2) [email protected] Abstract : Black Ni coatings possess both very high radiation energy absorption capability and good corrosion resistance, and are highly desirable for applications in such as solar thermal energy conversion systems and sea water desalination plants. We have developed a new technique based on industrial electroplating to produce ultra-black Ni based coatings with nano-composite structure. This technique uses electroplating method to produce black Ni nano metal-oxide composite coatings on brass substrate with a bright Ni top layer. TiO and ZrO sol solutions were added to the electroplating solution to form black Ni/TiO and black Ni/ZrO composite coatings. The coating properties including hardness and scratch resistance have been improved in comparison with the conventional black Ni coating. Nano-indentation tests and microstructure studies have also been conducted to explain the strengthening mechanisms. Keywords : Black Ni coating, nano-structured composite coating, hardness, scratch resistance - PhD Candidate, Department of Chemical & Materials Engineering, the University of Auckland, PB - Professor, Department of Chemical & Materials Engineering, the University of Auckland, PB , Auckland , Auckland , New Zealand , New Zealand 117 117 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 5771731224 The role of silicon carbide particles in stabilizing aluminum foam in batch type gas injection foaming process M. Malekjafarian (1)M. S. Abravi (2)M. Golestanipour (3)A. R. Sadeghi (4) S.K. Sadrnezhaad (5) [email protected] Abstract : Composite aluminum foams reinforced with SiC particles were manufactured by injecting gas into the liquid. Microstructure and mechanical behavior of the Al/SiCp foam were investigated by scanning electron microscopy and compression test. The results show that the both cell size and wall thicknesses augmented with increasing SiCP content while the Plateau border size decreased. With greater SiCp content, plateau stress was larger but maximum plateau strain was lower. The stress-strain curve exhibited serrations in the plateau region. Keywords : aluminum; foams; particulate reinforced composites; melt spinning; compression test - - - - Materials Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Branch, P.O. Box , Azadi Square, Mashhad, Iran - Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box - , Tehran, Iran 118 118 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 5781734224 The effect of adding bioactive glass on the fluoride release of resin-modified glass-ionomer cement in simulated body fluid Jhamak Nourmohammadi (1)Shokufeh Teimory (2)S.K. Sadrnezhaad (3) [email protected] Abstract : Glass ionomer cements (GICs) originally designed for use as dental materials have a number of advantages over acrylic bone cements. These include non-exothermic setting reaction with no thermal damage to surrounding tissues, minimal shrinkage during gelation, the possibility of incorporation drugs and growth factors within the cement and the ability to release fluoride. It is already known that fluoride increase trabecular bone density and it is used in the treatment of osteoporosis to inhibit bone resorbtion. However, fluoride release process is complex and affected by variables related to the cement formulation, manipulation, the mixing process and elution medium. This study was made to examine the change of the cement powder composition on the fluoride release profile in simulated body fluid for clinical efficacy in respect of orthopedic surgery. Therefore, the effects of adding different content of bioactive glass to the new cured cement on elution of fluoride and its kinetic were investigated. Keywords : Resin-modified glass-ionomer cement; Bioactive glass; Simulated body fluids; Apatite, Osseo- Biomaterials Department, Materials and Energy Research Center,Karaj, Iran - Biomaterials Department, Islamic Azad University,Olum Tahghighat Barnch,Tehran, Iran - Material Science Department, Sharif University, Tehran, Iran 119 119 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 5791737224 Self-Propagating High-Temperature Synthesis of Porous Molybdenum Disilicide Composites M. Malekjafarian (1)E. Zahabi (2)S.K. Sadrnezhaad (3) [email protected] Abstract : Microwave processing combined with combustion synthesis was used to fabricate intermetallic composite foam. Internal microwave heating initiated ignition at center of the sample and combustion wave front propagated radially outwards. Open-cell porous MoSi intermetallics with adjustable pore characteristics were successfully produced from MoO , SiO , Mg and C raw materials. Manipulating volume fraction and particle size of the utilized carbon, porosity and pore size of MoSi intermetallics were easily controlled. Their values were in the ranges of - % and mm, respectively. From thermodynamic analyses of MoO –xMg–yC system, optimal ranges of x and y coefficients were so found to ensure complete reduction of MoO3 to metallic molybdenum. The influence of x and y values on the process parameters like temperature, front propagation velocity, phase composition and the structure of products were experimentally investigated. Keywords : Metal Foam; Composite materials; SHS process; Molybdenum Disilicide - - Materials Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Branch, P.O. Box , Azadi Square, Mashhad, Iran - Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box - , Tehran, Iran 120 120 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 5801740224 PHYSICAL - CHEMICAL AND THERMODYNAMIC PROPERTIES OF ALUMINUM ALLOYS-NEODYMIUM M.B Razazi (1)R.N.Amini (2)B.B Ishov (3)A.B Badalov (4) Abstract : The enthalpy of dissolution of alloys and intermetallics of the Аℓ-Nd systems with the method of calorimetrical solution has been determined. Enthalpy of formation by thermochemical cycle of intermetallic compounds and patterns of their changes depending on the composition has been calculated. The melting point of intermetallic systems by specified Semiempirical method has been defined. Installed symbaticall dimension law in the changes of melting temperature and enthalpy of formation of IM with maximum stability in the composition of Аℓ2-Nd is determined. Keywords : Alloy, Intermetallic, Aluminium , Lanthanides, Heat of solution, Enthalpy of formation - Department of Materials Science and Engineering , Majlesi Branch, Islamic Azad University, Isfahan, Iran - Institute of Chemistry. V.I. Nikitin Tajikistan Academy of Sciences - Tajik Technical University, M.S. Osimi, Dushanbe, Tajikistan 121 121 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors 5811743224 Semiconductor nanoscrystals as novel optical materials S.V. Gaponenko (1) [email protected] Abstract : The paper summarizes basic propertis and potential applications of semiconductor nanocrystals viewed as novel optical materials. Basic properties include size-dependent absorption and emission spectra, broad size-dependent luminescence excitation spectra, strong nonliner optical response, high photostability, electro-optical effect and feasibility to make solid samples, thin films, solutions and even bioconjugates. Applications include optical filters, nonlinear laser filters/shutters and Q-switches, electro-optical modulators, swithces, display components, fluorescent labels in biospectroscopy. Favorable features of semiconductor nanocrystals are highlighted. Keywords : nanocrystals, quantum dots, lasers, luminophores, electro-optics, lab-on-chip, bioconjugates - B.I.Stepanov Institute of Physics, Minsk, Belarus 122 122 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 583174923 Metal foam sandwich composites: Contact damage, residual bending strength and energy absorption Maizlinda I. Idris (1)Tania Vodenitcharova (2)Mark Hoffman (3) [email protected] Abstract : Structural components made of metal foam sandwich composites can be locally damaged during handling or in impact accidents. It is imperative for their design to account for the response of the sandwich composites to local damage of varying sizes, and to estimate their residual strength under operating loading conditions. This paper presents an experimental study of the deformation and failure mechanisms of sandwich composites made of closed-cell aluminium foam core (ALPORAS) and carbon fiber skins. The composites are first subjected to quasi-static indentations with spherical indenters of various diameters and then loaded in quasi-static four-point bending until failure. The failure modes in both loading cases were analysed, and the residual compressive and tensile strength in bending was determined along with their dependence on the induced damage. Keywords : - - - School of Materials Science and Engineering, University of New South Wales Sydney, NSW Excellence for Design in Light Metals - Faculty of Mechanical and Manufacturing Engineering, University of Tun Hussein Onn Malaysia, Malaysia , Australia, and the ARC Centre for Parit Raja Batu Pahat Johor, 123 123 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 584175231 Modification of light-matter interaction in nanostructures: From basic physics towards applications S.V. Gaponenko (1) [email protected] Abstract : The paper summarizes the state-of-the-art and potential application of modified light— matter interaction in metal-dielectric nanostructures. Local incident field enhancement and density of states enhancement makes feasible Raman scattering increase by many orders of the magnitude and fluorescence intensity rise up by 1-2 orders of the magnitude. The effects can be used in routine analytical practice. In case of Raman spectroscopy, enhanced response offers a possibility to use simple and cheap devices up to primitive filter based instruments for specific tasks. In case of luminescence enhancement not only analytical techniques can be improved, e.g. in medicine but also light emitting devices can be developed with spectral converters based on plasmonic effects. Keywords : plasmonics, Raman spectroscopy, fluorescence - Stepanov Institute of Physics, National Academy of Sciences of Belarus, Nezalezhnasti Ave , Minsk Belarus 124 124 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials 83249729 Toughening of PA /HDPE/SEBS-g-MA/Clay nanocomposite M. Attari (1)A. Arefazar (2)Gh. R. Bakhshandeh (3) [email protected] Abstract : Preparation and morphology of PA / high density polyethylene (HDPE)/ SEBS-g-MA / Modified clay nanocomposites were studied. Mixing was performed using melt processing in an Extruder Co rotating Twin Screw. After etching the materials with boiling Toluene and THF at room temperature, the morphology was examined by scanning electron microscopy (SEM) analyses. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to evaluate the effects of the Organo-Clay addition on the structure of nanocomposites. XRD traces showed that the characteristic ( ) peak of the nanocomposites shifted to the lower angle region. XRD and TEM results showed simultaneous existence exfoliated and intercalated structures in produced nanocomposites. The tensile properties and impact strength of these toughened nanocomposites are discussed in terms of the MMT and SEBS-gMA contents and morphology. Adding of nanoclay enhanced and improved the stiffness properties of produced nanocomposites but reduced their toughness properties. Adding of SEBS-g-MA reduced stiffness properties but increased toughness properties. In this project, we gain access a best, optimum composition which there is a clear trade-off between stiffness versus toughness. Keywords : Campatibilizer, Morphology, PA , HDPE, Toughening - Polymer Engineering Department, Islamic Azad University south of Tehran branch, Tehran, Iran - Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran - Rubber Processing and Engineering Department, Iran Polymer & Petrochemical Institute, Tehran, Iran 125 125 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials 85255730 Investigation on The Effect of Viscoelasticity on Natural Frequency in Cylindrical Sandwich Using FEM M.shariyat (1)S.M.M.Shakib (2)A.R.N.Oskouie (3)A.H.R.Mazyak (4) M.R.Mohammadi (5) [email protected] Abstract : Sandwich panels are present in many engineering structures specifically where the high ratio of strength to the weight is recommended. Application of sandwich panels with viscoelastic core with high damping properties will tend to better flexural strength and dynamic behaviors and sound insolation. The main aspect of present text is sensitivity analysis of natural frequencies of cylindrical sandwich panels about changing viscoelastic properties. Modeling and FEM analysis and proceeding data gathering were accomplished using ABAQUS/CAE (R). Acquired results have been verified by comparison with governing theory of sandwich shells and plates and errors between different theories and FEM has been identified. In this paper, effect of viscoelastic properties and composite lay-up and boundary condition has been brought into account. Keywords : Viscoelastic, Composite, Cylindrical Sandwich Panel, FEM - K.N. Toosi University of Technology, Faculty of Mech. Eng., Pardis Street, Molasadra Avenue, Vanak Square, Tehran, Iran - - - - Imam Hossein University, Faculty of AeroSpace.Eng. , Hakimiyeh, Tehran. Iran 126 126 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 9227685 Tribology Evaluation of Jatropha as an Environmental Friendly Lubricant I. Golshokouh (1)S. Syahrullail (2)F.N. Ani (3) [email protected] Abstract : The main source for lubricant oils are mineral oil, but the source for mineral oils are getting lower from day to day and it is a major source for environmental pollution in the world. This research is a comparative study of friction, wear and viscosity was carried out on Jatropha oil and hydraulic oil-based commercial lubricating oil. Wear and friction were measured with four balls Tribotester and CCD camera according to the American Society for Testing and Materials (ASTM) standard. Results show that Jatropha oil has better condition in friction and wear instead of hydraulic oil with base lubricant. Keywords : Jatropha oil, Friction, Wear, Four balls tester, Lubricant - Member of faculty, Department of Thermofluids, Faculty of Mechanical Engineering, University Technology Malaysia, Johor D.T., Malaysia and Islamic Azad University, Iezhe, Iran - - Department of Thermofluids, Faculty of Mechanical Engineering, University Technology Malaysia, Johor D.T., Malaysia and Islamic Azad University, Iezhe, Iran 127 127 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials 9829485 Micromechanical study of green wood subjected to mode I fracture A. Sedaghat (1)M. Soleymani (2)M. Talachian (3) alireza_sedaghat.liau.ac.ir Abstract : The importance of environmental effects on the structural performance of wood has been known for ages, moisture being the most pronounced degradative effect that needs to be taken into account at different levels of wooden structure durability. Moisture content has an effect on many mechanical and physical properties below the fiber saturation point. The results presented herein focus on the chracterisation of fracture mechanisms and properties of softwoods and hardwoods at the highest moisture content around the fiber saturation point, where wood can be regarded as a poroelastic fluid-saturated media. Small wooden specimens were subjected to opening fracture mode I loading with the wedge-splitting loading stage which allows for in-situ real-time ESEM investigations. Fracture responses are reported for four different wood species tested ex situ, and fracture parameters such as total fracture energy are discussed related to two fracture directions RL and RT. It is concluded that microstudy provides valuable evidence on the change of fracture mechanism with wood species and fracture orientation. Keywords : Wood, Fracture, ESEM, Moisture, Poroelasticity, Fluid-saturated media, Crack - - - Engineering Group, Material Engineering Department, Tarbiat Modarres University, Tehran, Iran 128 128 NAMIC 2012 Farsi Papers 131 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials Farsi3079211011 Mo(Si,Al) )4( ُ)هحوذرضا حسي زاد3( ُ)هسعَد علیساد2( )سیذ علی طیبی فرد1( حسیي فصیحی دستجردی ceramicmahe@ gmail.com : ُچكیذ Mo(Si SHS Al ) XRD SHS PSA (Particle Size Analyzer - wt d Mo(Si,Al) wt / = ºC μm wt wt SHS Mo(Si,Al) - 131 - - - - - - - 132 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi35710711117 LLDPE/nanoTiO )4( )هحوذ ابراّین بحرالعلَم3( )جَاد هرادللی2( )حویذُ بصیری1( ًذا سرحذی )5( هحوذ حسیي شیخی sarhadi_n@ yahoo.com : ُچكیذ TiO LLDPE/nanoTiO TiO TiO - 132 - - - - - - - - - - - - - - - - - - - 133 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi36711011121 )3( )سیاهك باسمی2( )سیذ رضا غفارياى1( اهیر بابايی a.babaei@ aut.ac.ir : ُچكیذ film stacking powder impregnation clay HDPE-g-MA LLDPE-g-MA clay exfoliated - - - 133 134 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi4761428126 WC-Co )3( )رضا غالهی پَر2( َ)حبیب ايٌاًل1( ًیوا خادهیاى nkhademian@ gmail.com : ُچكیذ WC- Co- Functionally Graded Hard Metals TiC xTiC-yTiN(x= y= Controlled atmosphere furnace EDS SEM Vickers Micro hardness - 134 135 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi4781434126 )3( )سیذ هجتبی زبرجذ2( )جلیل ٍحذتی خاکی1( حسیي حسیٌخاًی ho_ho931@ stu_mail.um.ac.ir : ُچكیذ h AAS SEM TGA XRD A - - - 135 136 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Fe Farsi4831449127 Co )3( ُ)حكوت رضَی زاد2( )حویذ رضا صوین1( علی هْرالحسیٌی ali_mehr_k@ yahoo.com : ُچكیذ Fe Co Fe Fe Co ) Cu Co Fe Co XRD VSM Fe SEM Co - 136 137 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi4871461127 )2( )احوذ هٌشی1( يلذا کريوی y.karimi@ ma.iut.ac.ir : ُچكیذ pH - 137 138 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Semi conductors Farsi4901470128 LaFeO )4( )سعیذ باغشاّی3( )کاٍُ ارزاًی2( )هرتضی تویسی فر1( زّرا درخشی zahra_derakhshi@ yahoo.com : ُچكیذ LaFeO LaFeO PVA Sherescan Line Scan SEM/EDX Line Scan p - - 138 139 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi4931479128 )3( )هحسي حاجی پَر2( )هحوذ حاللی1( آرهیي ٍحیذ هحوذی arminvm@ gmail.com : ُچكیذ ELM-GC C XRD DLS FE-SEM - - 139 140 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi4941482129 B C ZrB -SiC )3( )هحبَبِ شاهبَلی2( )هْری هشْذی1( َعلی رزهج razmjoo_a@ yahoo.com : ُچكیذ C SiC ZrB ZrB SiC-ZrB B C ºC SiC B C SiC XRD SEM MPam B C B C B C - 140 141 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi4951485129 AZ )4( )هصطفی هختاری3( )هحوذ اسذی2( )سیذ فرشیذ کاشاًی بسرگ1( رٍزبِ ًصیری roozbehnassiri@ yahoo.com : ُچكیذ AZ Si N AZ - 141 142 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi4961488129 Mn+Fe O )2( )حسیي اسواعیلی1( سیذ علی طیبی فرد a-tayebi@ merc.ac.ir : ُچكیذ Fe O Mn oC oC XRD quench MnFe O MnFe O - - 142 143 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials Farsi4981494129 )3( )هحوَد خسرٍی2( )جعفر اسكٌذری جن1( ُهْرداد جبارزاد jabbarzadeh@ mshdiau.ac.ir : ُچكیذ - - 143 144 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials Farsi4991497129 MgAl O -Ti(C,N )3( )حویذرضا رضايی2( ُ)رحین ًمیزاد1( الِْ خَش اهیذ e.khoshomid@ yahoo.com : ُچكیذ MgAl O -Ti(C,N X TiO - 144 145 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi5021506129 )3( )علی خاًلرخاًی2( )هحوذ رضا ٍاعظی1( حویرا جوالی hom_jamali@ yahoo.com : ُچكیذ TMOS C AEM/TMOS SEM - AEM TMOS FT-IR AFM - - - 145 146 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi5061518129 )3( )سیذ اسواعیل شكیب2( )هرتضی زًذ رحیوی1( اهیر گلستاًی Amir _glstn@ yahoo.com : ُچكیذ Tvɷ SEM TMAZ - - 146 147 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi50915271210 )4( )علی ًعوتی3( )سعیذ باغشاّی2( )ابراّین لاسوی1( تْویٌِ گیَُکی tahminegiveki@ yahoo.com : ُچكیذ C Turbidimetry DLS - 147 - 148 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi51215361210 - )4( )سعیذ باغشاّی3( ُ)رحین ًمی زاد2( )کاٍُ اَرزاًی1( هرضیِ پذراى )5( هحوذ اسذی marzieh_pedaran@ yahoo.com : ُچكیذ FCC MgAl O C cm × SEM XRD TiO TiO C C Al ( -x)Mg Ti +xO - – - - 148 - 149 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi51615481210 ZnO )3( )ياشار عسيسياى کالًذرق2( )علی شاهل1( هعصَهِ ًاصری miss.naseri@ gmail.com : ُچكیذ XRD SEM FTIR UV-VIS - - 149 150 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi51915571210 Al/B C )3( )حسیي ادريس2( )هرتضی شوعاًیاى اصفْاًی1( ِعلیرضا هرادی فرادًب a.moradifaradonbeh@ ma.iut.ac.ir : ُچكیذ B C ARB mm/min rpm SEM mm/min mm/min - 150 151 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi52215661210 )4( )هحوذرضا جلیلیاى ًصرتی3( )هیٌا غالهی کفترٍدی2( )فرّاد اسوعیلی لذسی1( جوال هظلَم mazloom81@ gmail.com : ُچكیذ AFM UV-Visible - XRD - - - 151 152 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials Farsi52315691210 )2( )سعیذ ًَری خراساًی1( ًرگس هظاّری n_mazahery@ yahoo.com : ُچكیذ PGS PGS PGS - 152 153 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi52615781210 - )2( ُ)هصطفی علیساد1( سیذُ زّرا حسیٌی s.zhosseini65@ gmail.com : ُچكیذ Al-Fe - 153 154 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi52815841210 TiO -Al-C Al O -TiC )3( )رحوت اهلل عوادی2( )حسیي ادريس1( اصغر ًیوجردی asghar.nimjerdy@ gmail.com : ُچكیذ Al O -TiC SHS TiO -Al-C Al O -TiC - 154 - - - 155 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi53616081210 )3( )الِْ حسي زادُ پاريسی2( )ساراالسادات حسیٌی فارق1( هرتضی زًذ رحیوی M orteza.Zandrahimi@ gmail.C om : ُچكیذ CuZn Al mm Routomed β α EDX α_β - - 155 156 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi54016201210 )2( )حویذ رحیوی1( جعفر رضاًیا H .R ahimi@ ippi.ac.ir : ُچكیذ DMTA - 156 - - 157 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi54116231210 )3( )هحوَد آل شوس2( )هسعَد جباری1( غالهرضا لذر rezaghadar_00@ yahoo.com : ُچكیذ TM TE GaAs - 157 158 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Bio materials Farsi54316291211 - )2( )هحوذ حسیي فتحی1( پارسا رضَاًیاى P arsa.R ezvanian@ gmail.com : ُچكیذ - - 158 - - 159 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Fe Farsi54416321211 -Co ) -xSix )2( )شْريار شرفی1( هرين يَسفی yousefim63@ yahoo.com : ُچكیذ Fe -Co - Fe Fe -Co -Co - - 159 160 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi55016501211 )4( )اکبر خذاپرست حمی3( )ٍحیذ هتمی طلب2( )فاطوِ حك دٍست1( فاطوِ هحترم fatememohtaram@ yahoo.com : ُچكیذ - s/m - - - 160 161 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Smart materials Farsi55116531211 )4( )اکبر خذاپرست حمی3( )ٍحیذ هتمی طلب2( )فاطوِ هحترم1( فاطوِ حك دٍست fatemeh_haghdoost@ yahoo.com : ُچكیذ four-probe - s/m SEM - - 161 162 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi55216561211 - )2( ُ)هصطفی علیساد1( هیالد طالبیاى talebian.milad@ gmail.com : ُچكیذ – - 162 163 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi55416621211 )2( ُ)هحوذرضا ايسدپٌا1( پذرام پارسا pedparsa@ gmail.com : ُچكیذ Nd-Fe-B Nd-Fe-B - 163 164 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Functional materials Farsi55616681212 C-SiC )4( )يَسف صفايی ًائیٌی3( ُ)اصغر کاظن زاد2( )رحین يسداًی راد1( سعیذ صافی S afaei@ metaleng.iust.ac.ir : ُچكیذ C-SiC MCMB-SiC MCMB-SiC Si C-SiC - - 164 165 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi56016801212 NaOH KOH )4( )سلواى الیاسی3( )حبیب اهلل بیات2( )ّرهس اسالهی1( آرهاى هرفع eslamih@ aut.ac.ir : ُچكیذ – - - - 165 - 166 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 New materials Farsi5751725224 )2( )سیذ خطیباالسالم صذرًژاد1( ُپريسا ٍحذت خَا parisa.vahdatkhah@ gmail.com : ُچكیذ ITO ITO FE-SEM - 166 167 st 1 New and Advanced Materials International Congress NAMIC 2012 - May 30-31 Nano materials Farsi5821746227 NiTi )3( )سیذ علیرضا حسیٌی2( )سیذ خطیب االسالم صذرًژاد1( شْريار اکبری ًیا shahryarakbarinia@ yahoo.com : ُچكیذ NiTi NiTi NiTi NiTi Ti Ni Ni Ti 167
