题目：Measuring the mechanical properties and surface forces of nanowires

报告人：Professor Han Huang

时间：2018年5月31日上午10：00

地点：betway必威动力与机械学院报告厅

欢迎各位师生踊跃参加！

Abstract text:

Characterization of the mechanical properties and surface forces of nanowires is a crucial and timely issue for the making of future generation nano- devices and systems. Till now, accurate measurement of those properties is extremely challenging and reliable methodologies are still lacking. This talk will address the recent advances in the development of innovative methodologies for measuring the mechanical properties and adhesion and friction forces of nanostructures, using state-of-the-art nanomanipulation techniques, at the University of Queensland. In the first part of the talk, Prof Huang will introduce the characterisation of elastic modulus and fracture stress of nanostructures. In particular, he will discuss the effect of testing environment on the properties being measured and the fascinating scientific discoveries associated with the methodology development. In the second part of his talk, he will report their effort towards developing simple and reliable methodologies to accurately measure nanoscale adhesion and friction using optical microscope (OM) and scanning electron microscope (SEM) assisted nanomanipulation. The effects of key parameters on the adhesion and friction properties measured using the developed tools will be addressed, which shed some lights on the origins of adhesion and friction at nanoscale.

Biography:

Professor Han Huang is the Director and Research Chair of the School of Mechanical and Mining Engineering at The University of Queensland. He currently leads a group of researchers working on mechanical characterization of nanostructures and advanced manufacturing.  Prof Huang obtained his Bachelor and Master’s Degrees at Huazhong University of Science and Technology (China) and his PhD at The University of Western Australia. He has published over 200 refereed journal papers, which attracts ~4,500 citations, leading to an h-index of 35. He has received a number of research accolades, including Australia Research Council Future Fellow, Australia Research Fellow and Queensland International Fellow, and won the prestigious Singapore National Technology Award. He has editorial roles in several international journals and is a steering member of a number of nanotechnology conferences.