题目：Mechanical characterization of amorphous materials
Amorphous materials have attracted major interest due to their exceptional properties. Amorphous phases have been either intentionally produced or observed in many material systems such as metallic glasses, nanowires and lithiated silicon. However, the structure-property relations in these materials, in particular the mechanical behavior have not been well understood. It is also difficult to apply the general principle of ‘microstructure determines properties’ to amorphous materials as there is no controlling microstructural features such as grains. In this presentation, our recent work on several amorphous materials (metallic glass composites, TiO2 nanotubes and lithiated silicon) will be briefly introduced, with a focus on the deformation and failure mechanisms.
Cheng Yan received his PhD from the University of Sydney in 1998. He is a professor in the School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Australia. His main research interests include nanocomposites, materialinterfaces and nanomechanics. He has generated about 170 journal publications and received about A$6 million research fund. He was awarded two competitive fellowships from the Australian Research Council (ARC APD and ARC ARF), Sesqui fellowship from Sydney University and inaugural international fellowship and nanotechnology category winner from Queensland government. Prof Yanhas been committee member of Australia Fracture Group, advisory committee member of Australian ATN Nanotechnology Network and chair or co-chair of 10 international conferences and symposia. He is the editorial member of Composite Communications, Materials Technology and Graphene and the associate editor of Australian Journal of Mechanical Engineering. He is the reviewer for many funding agencies such as Australian Research Council, Netherlands Organization for Scientific Research, Luxembourg National Research Fund, Portuguese Foundation for Science and Technology and China Major Fund for Young Scientist.