Jing_liu
Prof. Jing Liu
Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences,Beijing 100190, China

Liquid Metals in Advanced Thermal Management and Energy Harvesting

Abstract:




Liquid metals such as eutectic gallium-indium, gallium-indium- tin or allied alloy are quickly emerging as revolutionary functional materials in a wide range of important areas owning to their multi-capabilities like excellent thermal, electrical conductivity, being highly fluidic around room temperature etc. With many unique merits hardly offered by conventional fluids, liquid metals have recently attracted tremendous attentions from both academia and industry. Particularly, the room temperature liquid metal cooling is being developed as a powerful way to tackle the thermal barrier challenges in advanced high heat flux devices, spanning from electronics, optoelectronics, battery, to power system etc. Over the past few years, we have carried out comprehensive works to investigate the fundamental and practical issues of liquid metal in thermal management and energy harvesting areas and established a series of new technologies. Some of these strategies were demonstrated to be rather useful even translated into industrial products with exceptional performances. This talk is dedicated to present an overview on the basic features of liquid metals, material development, flow driving, device designing philosophy, thermal management control as well as typical applications thus enabled. Along with that, the fundamental phenomena including mechanisms lying behind will be illustrated. Challenging issues in pushing the new technology into large scale utilization will be raised. It is expected that liquid metals will find unique and important values in a wide variety of thermal management, power system and energy areas where reliability, compactness, low noise and energy saving are urgently requested.

Biography

Jing Liu received his double bachelor’s degrees (B.E. in Power Engineering and Control and B.S. in Physics) in 1992, and Ph.D. in Thermal Science with specialty on Bioengineering in 1996, all from Tsinghua University. He then served as assistant professor there, a postdoctoral research associate at Purdue University, and a senior visiting scholar at MIT. He has been a professor of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (CAS) since July 1999 and a professor of Tsinghua University since August 2008. Dr. Liu works intensively at the interdisciplinary areas among thermal science, liquid metal and biomedical engineering. He has made significant contributions to the bioheat transfer area through numerous conceptual innovation, methodology development and technical inventions. Quite a few of his inventions have been translated into clinical uses. Dr. Liu pioneered a group of nonconventional technologies and fundamental scientific discoveries through introducing the room temperature liquid metals into rather diverse areas which successfully initiated many new frontiers in chip cooling, printed electronics and 3D printing, biomedical technology, soft machine and energy area etc.
As an educator, Dr. Liu tried his best to contribute to the teaching, research, design and development of several newly emerging frontiers in thermal science, energy and bioengineering through nine popular book publications. Many of them have been widely adopted as textbooks throughout China or introduced overseas. Particularly, his book “ Micro/Nano Scale Heat Transfer“, first appeared in 2001, has been reprinted five times over the years. Apart from that, Dr. Liu has published seventeen invited book chapters, over three hundred and eighty peer reviewed journal papers (18 out of them were selected as cover or back cover articles). His researches were frequently featured by world renowned media like: New Scientist, MIT Technology Review, Nature, Nature Materials, IEEE Spectrum, Physics Today, Newsweek, Daily Mail, Discovery, Chemistry World, National Geographic Daily News, and Fox News etc. Dr. Liu is a winner of The William Begell Medal, one of the highest awards in thermal science over the world which was issued to an individual every four years; He is also a recipient of 2010- 2011 Best Paper of the Year Award from ASME Journal of Electronic Packaging, the 2003 National Science Fund for Distinguished Young Scholars of China, National Science and Technology Award for Chinese Young Scientist etc. He has graduated more than 50 Ph.D. or Master degree students and received five times highest teaching award from the CAS.