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Keynote Speaker I 演讲嘉宾

 

Prof. Dongping Sun

Nanjing University of Science and Technology, China

Biography: Dongping Sun is the professor of School of Chemical Engineering, the director of Institute of Chemicobiology and Functional Materials, the chairman of Jiangsu Society of Low-Carbon Technology, and the deputy director of the Ministry of Education of key laboratory of Soft Chemistry and Functional Materials. He has been working in the areas of microbiologic fermentation, genomics and protein engineering, biomedical materials, low-carbon new energy system, and the extracellular regulation of bio-materials by means of mesoscopic view. He has already awarded twice of the Science and Technology Award of Jiangsu Province in the years of 2013 (Ranking 1 st) and 2017 (Ranking 4 th). The recent projects of Prof. Sun are mainly included three projects of National Natural Science Foundation of China, State 863 Project, Qing Lan Project - Science and Technology Innovation Team, Natural Science Foundation of Jiangsu Province, and Doctoral Fund of Ministry of Education of China. Prof. Sun recently published more than 20 top scientific papers according to the journal ranking from Chinese Academy of Sciences, and awarded 28 pieces of authorized patents. He also wrote one monograph and two textbooks, and all of them are published from Science Press.

Prof. Henry Hu

University of Windsor, Canada

Biography: Dr. Hongfa (Henry) Hu is a tenured full Professor at Department of Mechanical, Automotive & Materials Engineering, University of Windsor. He was a senior research engineer at Ryobi Die Casting (USA), and a Chief Metallurgist at Meridian Technologies, and a Research Scientist at Institute of Magnesium Technology. He received degrees from University of Toronto (Ph.D., 1996), University of Windsor (M.A.Sc., 1991), and Shanghai University of Technology (B.A.Sc., 1985). He was a NSERC Industrial Research Fellow (1995-1997). His publications (over 160 papers) are in the area of magnesium alloys, composites, metal casting, computer modelling, and physical metallurgy. He was a Key Reader of the Board of Review of Metallurgical and Materials Transactions, a Committee Member of the Grant Evaluation Group for Natural Sciences and Engineering Research Council of Canada, National Science Foundation (USA) and Canadian Metallurgical Quarterly. He has served as a member or chairman of various committees for CIM-METSOC, AFS, and USCAR. The applicant’s current research is on materials processing and evaluation of light alloys and composites. His recent fundamental research is focussed on transport phenomena and mechanisms of solidification, phase transformation and dissolution kinetics. His applied research has included development of magnesium automotive applications, cost-effective casting processes for novel composites, and control systems for casting processes. His work on light alloys and composites has attracted the attention of several automotive companies.

Speech Title: Microstructure, Tensile Properties and Fracture Behaviour of HPDC Magnesium Alloy AZ91

Abstract: Understanding of tensile and fracture behaviours of die cast magnesium alloys is of importance for proper design of various emerging automotive applications. In the present study, magnesium alloy AZ91 was high pressure die cast into rectangular coupons with section thicknesses of 2, 6 and 10 mm. The effect of section thicknesses on strain-hardening and fracture behaviours of the die cast AZ91 was investigated.  The results of tensile testing indicate that the ultimate tensile strength (UTS), yield strength (YS), elongation (ef), modulus, toughnrss and resilience decrease to 129.17, 110.59 MPa, 0.37%, 25.9 GPa, 0.89 MJ/m3, and 236.10 kJ/m3 from 245.54, 169.26 MPa, 4.07%, 37.8 GPa, 8.34 MJ/m3, and 378.95 kJ/m3 with increasing section thicknesses of die cast AZ91 to 10 mm from 2 mm, respectively.  The analysis of true stress vs. strain curves shows that the straining hardening rates during the plastic deformation of the alloy increase to 5500 MPa from 4600 MPa with decreasing the section thickness to 2 mm from 10 mm, respectively.  The microstructure analyses by the optical microscopy (OM) and scanning electron microscopy (SEM) reveal that the high tensile properties should be attributed the low porosity level, fine dendrite structure, high eutectic content, and thick skin.  The observation via SEM fractography illustrates that the fracture behaviour of die cast AZ91 is influenced by section thicknesses. As the section thickness increases, the fracture of AZ91 tends to transit from ductile to brittle mode due to arising porosity content and coarsening microstructure.

Prof. Dimitris E. Ioannou

George Mason University, USA

Biography: Dimitris E. Ioannou received his BS in Physics (1974), from Thessaloniki University, Greece and his MS (1975) and PhD (1978) in Solid-State Electronics, from Manchester University, UK. He has held positions at Manchester and Middlesex Universities (UK), Democritus University of Thrace (Greece), University of Maryland (USA) and National Polytechnique de Grenoble (France). His current research interests are on the performance and reliability of nano-scale silicon and non-classical nanoelectronics devices and circuits. He has published over two hundred and fifty research papers, and advised over thirty research students. His most important contributions include the development of Scanning Electron Microscope (EBIC) techniques, for characterizing electrically active defects, and the carrier diffusion length and lifetime in semiconductor materials; techniques for studying deep traps, carrier lifetime and interface states in Silicon on Insulator (SOI); Schottky and Ohmic contact technology for SiC; physics and reliability (hot carriers, NBTI, ESD) of SOI devices, including the discovery of the opposite-channel based carrier-injection. In recognition of the importance of his research to Semiconductor Industry, he received the IBM Faculty award twice, and was elevated to IEEE Fellow (2010) for “contributions to the reliability and characterization of SOI devices and materials”.

Speech Title: Glassy-polymer Electret Ferroelectric Random Access Memory (GeRAM)

Abstract: There is an urgent need for new memory concepts and technologies in the semiconductor industry, as can be seen, for example, by many sessions dedicated to memory in meetings such as IEDM and ISSCC etc. Our group has been working on a new kind of ferroelectric memory (FeRAM), which is intrinsically superior to currently available FeRAM technologies. This new FeRAM is based on electrets, i.e. polarizable polymers with a high glass transition temperature (Tg), and we call it Glassy electret Random Access Memory (GeRAM). It possesses highly desirable properties: high speed, long retention, high endurance, low power dissipation, immunity to disturb, and very high density. These characteristics make it a realistic candidate for universal memory (replacing SRAM, DRAM and Flash Memory) with high potential for commercial success. The novelty of our approach derives from the “dual condition” cell write/erase mechanism, whereby we use a short heat pulse to “soften” the polymer, so that an electric field of modest amplitude can program the memory with ease, at very high speed. This is because at temperatures sufficiently higher than Tg, the rotation of the dipoles (poling) is very fast, leading to picosecond program/erase times. On the other hand, at the operation (read/hold) temperature the dipoles are “locked” in position, thereby improving the reliability and retention time, even in the presence of a depolarizing field – a key limitation of existing FeRAMs. In this talk, I will review our progress to-date, present some encouraging results, and highlight important challenges that must be overcome, before this becomes a viable memory technology.

 

Prof. Shen-Ming Chen

National Taipei University of Technology, Taiwan

Biography: Prof. Shen-Ming Chen (h-index > 60) received his PhD degrees in chemistry from National Taiwan University, Taipei, Taiwan. He was a visiting postdoctoral fellow with the Institute of Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nuremberg, Germany in 1997. He joined Department of Chemical Engineering, National Taipei Institute of Technology, Taipei, Taiwan in 1985. He had been an associate professor of Department of Chemical Engineering, National Taipei Institute of Technology, Taipei, Taiwan from 1991 to 1997. Since August 1997, he has been a full professor of Department of Chemical Engineering and Biotechnology, National Taipei University of Technology. He has been the Dean (Curator) of library, National Taipei University of Technology, Taiwan from 2000 to 2006 and the Director of Extracurricular Activity, office of student affairs, National Taipei University of Technology, Taiwan from 1995 to 2000.
Prof. Shen-Ming Chen has published over 500 research and review papers in internationalSCI journals. Some of their papers have been selected as the most cited papers in theJournal of Electroanalytical Chemistry and Biosensor & Bioelectronics. He received threetimes Distinguish Professor awards. He also received three times Outstanding Research Award from National Taipei University of Technology, Taiwan. He have edited or attended two books for NOVA publications titled “Nanostructured Materials for Electrochemical Biosensors” and “Biosensors: Properties, Materials and Applications” and contributed four book chapters.
His research interest includes nanocomposites, bionanomaterials, bionanotechnology, electrochemical biosensor, biosensors, bioelectrochemistry,, chemical materials, electroanalytical Chemistry, electrocatalysis and electroanalysis, photoelectrochemistry, metalloproteins, metalloporphyrins, nanotechnology, spectroscopic techniques, scanning probe techniques, quartz crystal microbalance, materials research, fuel cells, solar cell and photovoltaic cells.

 

 

 

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