Material Science and Engineering Technology

ICMSET2019 Invited Speakers

Prof. Jun Song CHEN
University of Electronic Science and Technology of China

Professor Jun Song CHEN received his Ph.D. at Nanyang Technological University in 2012. After that, he worked at the Max Plank Institute of Colloids and Interfaces as an Alexander von Humboldt researcher from 2013 to 2014. He is now a Professor at the School of Materials and Energy, University of Electronic Science and Technology of China. He was one of the “Thomson Reuters Highly Cited Researchers” in 2015 and 2016, and “Elsevier Chinese Highly Cited Researchers” in 2017. His research interests include the design of nanostructured materials for energy-related applications, such as supercapacitors, lithium-ion batteries, and water splitting.

Prof. Yoshimi Watanabe
Nagoya Institute of Technology, Japan

Speech Title: Grain Refining Performance of Cast Aluminum by L12 Modified (AlxMe1-x)3Ti Heterogeneous Nucleation Site Particles

Yoshimi Watanabe is currently a Professor of Engineering in the Department of Physical Science and Engineering at Nagoya Institute of Technology. He earned a Bachelor of Engineering in Metallurgical Engineering from Nagoya Institute of Technology in 1985, Master of Engineering in Materials Science and Engineering from Tokyo Institute of Technology in 1987, and a Ph. D. in Materials Science and Engineering from Tokyo Institute of Technology in 1990. After that, he worked at Kagoshima University as a research associate at the Department of Mechanical Engineering from 1990 to 1992, at Hokkaido University as a research associate at the Department of Metallurgical Engineering from 1992 to 1995, at Shinshu University as an associate professor at the Department of Functional Machinery and Mechanics from 1995 to 2005. In 2005, he moved to Nagoya Institute of Technology as a full professor. He was worked at Lawrence Berkeley National Laboratory as a visiting scientist from 1997 to 1998. His current research interests are functionally graded materials (FGMs), grain refiner of cast aluminum, metallic 3D printing, severe plastic deformation, Fe based shape memory alloy.

Abstract: It is well accepted that an effective refiner contains heterogeneous nucleation site particles having a smaller lattice mismatching with the metal matrix. It is known that alloying with a certain amount of a transition element, Me, such as Cr, Mn, Fe, Co, Ni, Cu, or Zn causes the transformation from the D022-type tetragonal structure of Al3Ti into a high-symmetry L12 cubic structure. This transformation increases the symmetry of Al3Ti intermetallic compounds. Moreover, by changing the alloying element, the lattice constant of the L12 modified (Al1-xMex)3Ti intermetallic compounds is controllable. In our previous studies, it has been shown that L12 modified (Al1-xMex)3Ti intermetallic compounds show good grain refining performance, since L12 modified (Al1-xMex)3Ti intermetallic compounds have a smaller lattice mismatching with the metal matrix. In this study, our recent results on grain refining performance of Al-Al2.5Cu0.5Ti, Al-Al2.7Fe0.3Ti and Al-Al2.7Ni0.3Ti refiners will be reviewed.
The L12 modified (AlxMe1-x)3Ti intermetallic compound particles (Me = Cu, Fe and Ni) were spark plasma sintered (SPSed) with pure aluminum particles. The grain refining performance of obtained Al- L12 modified (AlxMe1-x)3Ti refiners were studied. It is found that the smaller grains are observed for the aluminum casts fabricated with the Al- L12 modified (AlxMe1-x)3Ti refiners. Therefore, the L12 modified (AlxMe1-x)3Ti particles can act as effective heterogeneous nucleation sites for primary aluminum in the solidification.  

Prof. Le Yu
Beijing University of Chemical Technology, China

Speech Title: Complex Hollow Structures for Energy-Related Applications

Prof. Le Yu received his Ph.D. degree in chemical engineering from Nanyang Technological University in 2016. He is currently a Full Professor at Beijing University of Chemical Technology. His research interests include nanostructured materials for secondary ion batteries, supercapacitors, electrocatalysis. He has published more than 70 research papers in high-profile journals including Science Advances, Nature Communications, Chem, Joule, Advanced Materials, Angewandte Chemie International Edition, Advanced Energy Materials, Energy & Environmental Science, Accounts of Chemical Research with a total citation over 10700. Among them, 46 papers are the ESI Highly Cited Papers and 1 paper is the ESI Hot Paper. 5 papers were highlighted by the journals (Angewandte Chemie International Edition & Energy & Environmental Science) as Front Cover/Back Cover/Inside Cover paper. 1 paper was highlighted as Frontispiece paper. 2 papers were selected by the editors as VIP paper. Right now, his H-index is 57. He was listed as a Highly Cited Researcher by Clarivate Analytics in 2018. He was also recognized as an outstanding reviewer for Journal of Materials Chemistry A from 2016 to 2018. He won the Chinese Government Award for Outstanding Self-Financed Students Abroad in 2014. He is now the young editorial board for Acta Physico-Chimica Sinica.

Abstract: Hollow nanostructures have received intensive attention as electrode materials for electrical energy storage and conversion systems due to their unique structural features and rich chemistry. Fabricating hollow nanostructures with high complexity by manipulating their geometric morphology, chemical composition, building block, and interior architecture has shown huge impact on the development of state-of-the-art hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and Li-ion batteries (LIBs). Herein, I describe my recent works about the synthesis of complex hollow structures as functional electrodes for energy-related applications. 

Prof. Mohamed Gebreel
Egypt-Japan University of Science and Technology (E-JUST), Egypt

Speech Title: New superelastic Ti-Nb-Ta-Zr alloys for biomedical applications

Dr. Gebreel got his PhD from Nagoya University, Japan in 2008. He worked in Nagoya University then Tohoku University, Japan, till 2010 when he moved to E-JUST. He is specialist in alloy design and microstructure control. He worked in developing New generation of Ti-alloys for biomedical applications, Ultra-high strength Ti-alloys, Negative and zero thermal expansion alloys and recently in High entropy alloys. He received the State's Award (Egypt) in Engineering, 2014. He had 7 funded research projects and more than 90 publications [including filed Patents, Book chapters, Journal papers, and international conferences]

Abstract: Ti-Nb-Ta-Zr alloy system is promising for biomedical applications due its excellent biocompatibility. Achieving high superelastcity in this Ni-free biomedical alloy will widen its application for dental and spinal fixation implants. Here we investigates the effect of Nb, Ta and Zr alterations on the phase stability, cold deformation, and elastic strain recovery of new Ti-Nb-Ta-Zr alloys which were designed along the β/β+ω metastable phase boundary and produced by arc melting. β-phase was predominant in most alloys in the homogenized condition while stress induced martensitic transformation (SIM) were observed during/after cold deformation. Cyclic compression tests were carried out on the alloys and an outstanding combination of strength-elasticity properties was obtained with a relatively low strength of 250MPa for SIM transformation. Unique superelasticity in compression was observed in all the alloys which ranged from 2% - 9.5% that increases with lowering β-phase stability. 

Assoc. Prof. Aleksey Vedyagin

In 1997 I was graduated from Omsk State University. From 1999 to 2001 I was post-graduate student at Boreskov Institute of Catalysis of Siberian Branch of Russian Academy of Sciences, Russia. I defended my PhD thesis entitled “Catalytic dehydrogenation of methanol over supported copper catalysts” in 2005. From 2004 till 2014 I was an associate professor at Novosibirsk State Technical University, Russia. At the same time, since 2004 till 2008 I was a scientific researcher at Boreskov Institute of Catalysis. In 2008 I became a scientific secretary of the institute. Now I am a deputy director on science of BIC, head of Laboratory for nanostructured catalysts and sorbents research, head of Department of materials science and functional materials. My scientific interests are heterogeneous catalysis, oxide and metal catalysts, carbon nanostructures, carbon-based composites, dense and porous membranes, nanomaterials, nanotoxicology, etc.