报告题目：
Nanotribology – Bridging the gap between
liquid–solid and solid–solid friction
报告人: Dr. Ming Ma
Department of Chemistry, Tel Aviv University
时间：2015年9月9日(周三) 10: 00
地点：中国科学院力学研究所主楼344会议室
报告摘要：
Friction is present in numerous physical phenomena, at all length scales. About one-third to one-half of the world’s primary energy is dissipated in mechanical friction, and 80% of machinery component failure is caused by wear due to friction. During the last decades, with the development of research in tribology which studies friction, its focus has shifted from mesoscale to nanoscale, leading to the emergence of nanotribology. On atomic level, nanotribology studies the energy dissipation at the interfaces between moving bodies and the dynamics therein. Many other phenomena like surface diffusion are also closely related to this field. Within the content of nanotribology, this talk will focus on the liquid-solid friction, a field now called nanofluidics, the super-low friction state between solid surfaces (superlubricity) and the diffusion of particles on surfaces. Examples including water transport in carbon nanotubes, critical sizes in superlubricity, and giant enhanced diffusion for particles confined in oscillating nano- and micro-scale contacts will be given based on the work of the speaker.
Publications:
1. Ming Ma, Francois Grey, Luming Shen, Michael Urbakh, Shuai Wu, Jefferson Zhe Liu, Yilun Liu, Quanshui Zheng, Water transport inside carbon nanotubes mediated by phonon-induced oscillating friction, Nature Nanotechnology, 10, 692 (2015).
— Reported by over 55 articles from over a dozen countries, including 新华网(xinhuanet), NY City News, The Times of Israel, etc.
2. Ming Ma, Igor Sokolov, Wen Wang, Alexander E. Filippov, Quanshui Zheng, Michael Urbakh, Diffusion through bifurcations in oscillating nano- and micro-scale contacts: Fundamentals and applications, Physical Review X, 5, 031020 (2015).
— Featured in Physics (http://physics.aps.org/articles/v8/82)
3. Ming Ma, Andrea Benassi, Andrea Vanossi, Michael Urbakh, Critical length limiting superlow friction, Physical Review Letters, 114 (5), 055501 (2015).
报告人简介：
Dr. Ming Ma received his bachelor degree from School of Materials Science and Engineering, University of Science and Technology Beijing in 2004, and graduated as Ph.D. from Department of Engineering Mechanics, Tsinghua University in 2010, under the supervision of Prof. Quanshui Zheng. After graduation he spent 2 years and a half in Department of Chemistry, University College London and London Centre for Nanotechnology as a postdoc, and now is working in Department of Chemistry in Tel Aviv University, Israel, with Prof. Michael Urbakh, a leading figure in the field of nanotribology. Dr. Ming Ma’s research focuses on the study of tribology and other fields which are closely related. These include liquid-solid friction, solid-solid friction and surface diffusion. His research tools involve theoretical modeling (e.g. Frenkel-Kontorova model), numerical simulations (e.g. first-principle calculation and molecular dynamics simulation), and working closely with experimentalists. During the last few years, Dr. Ming Ma has made some contributions to these fields. As the only first author, he has published several research papers on journals including Nature Nanotechnology, Physical Review X, Physical Review Letters, Physical Review B, and Physical Review E, and given a few talks in international conferences.
报告联系人：沈楠 (office@lnm.imech.ac.cn 82543935)
