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SEMINAR: Understanding and Engineering Thermal Transport in Materials
October 30, 2020 @ 10:00 am - 11:00 am
Abstract:
The release and absorption of energy is fundamental to all applications. Managing the ensuing heat flow involves selecting a material that possesses an appropriate thermal conductivity, either high or low. Obtaining such thermal conductivity in the face of other design requirements can be exceedingly difficult and often limits device performance. In this talk, I will focus on advances in materials with tailored thermal conductivity and enhanced understanding of the underlying transport behavior in such materials. First, I will show our recent effort to understand the microscopic mechanism of thermal transport in polymers, liquids, and amorphous solids. A unified formula for thermal conductivity of these materials will be shown using only fundamental structural components. Second, I will present a few case studies of engineering thermal conductivity in hybrid organic-inorganic materials, including composites and layered structures. Lastly, I will demonstrate two possible approaches to dynamically switch thermal conductivity in materials.
Bio:
Dr. Jun Liu joined the Mechanical and Aerospace Engineering Department at NC State University as an assistant professor in Fall 2015. Prior to this, he was a postdoctoral research associate at the University of Illinois at Urbana-Champaign. He received his Ph.D. from University of Colorado at Boulder in 2013. Dr. Liu is the recipient of the NSF CAREER Award in 2020. His group currently focuses on understanding and engineering thermal transport in functional materials for energy storage, conversion, and management.
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https://ncsu.zoom.us/j/92853147278?pwd=WVc3Q09yMTFRWGVWd21hWmVTSmNyQT09
Meeting ID: 928 5314 7278
Passcode: 558597