能源与材料创新研究院学术报告:Multi-scale Interfaces Design in Solids

发布者:戴晓发布时间:2017-06-27浏览次数:38

报告题目:Multi-scale Interfaces Design in Solids

人:Jian WangMechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588

报告时间:2017630日(星期下午2:00
报告地点:能源与材料创新研究院215会议室
报告简介Interfaces are common planar defects in solids. Interface can act as barriers, sinks and sources for other defects. In addition, Interface defects can modify surface diffusion processes, controlling morphology of nanostructures. By tailoring interface structures and properties, materials can be designed to achieve unusual properties, such as high strength, good ductility, high toughness, and high irradiation tolerance. This can be accomplished through two steps: (1) Discover unusual mechanical behavior (e.g., high strength and good ductility) of nanostructured composites, and Develop theory and fundamental understanding of unusual mechanical behavior. (2) Transform fundamental understanding of structural characters and deformation physics of nanostructured composites into a mesoscale capability of discovering, predicting, and designing superior nanostructured materials (strength, ductility, toughness, radiation). To achieve this goal, multi-scale methods including experiment and theory and modeling are necessary. In this talk, I will present fundamental principles in developing interface-dominated composites, and the development of experimental techniques and materials modeling tools at different scales.

报告人简介:Dr. Jian Wang is an Associate Professor at Mechanical and Materials Engineering at University of Nebraska-Lincoln. He received his first Ph.D in Solid Mechanics in Xi’an Jiao Tong University, in 1999. After He worked in Hong Kong for two years, he got his second PhD in Mechanical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA, in 2006. After that, He joined Los Alamos National Laboratory as Technical Staff Member for 9 years. Currently, his research interests are focused onmore quantitativeexploring the structure-properties relationships of structural and nanostructured materials. He received Outstanding Reviewer Awards in 2016 from two Journals (Scripta Materials and Modeling and Simulation in Materials Science and Engineering), International Journal of Plasticity Young Research Award, 2015; TMS MPMD Young Leader Professional Development Award, 2013; the LDRD/Early Career Award (2011); and the LANL Distinguished Postdoctoral Performance Award in 2009. He was leading two DoE BES Core programs with focus on (1) Deformation Physics of Ultra-fine Materials and (2) Multiscale Constitute Laws for HCP materials. He has more than 200 peer-reviewed publications (>6000 citations and H-index = 48, 25 papers selected as 25 Hottest Articles in Materials Science, five Journal covers), and 115 invited/keynote presentations. He is serving as Editorial Boards for International Journal of Plasticity, Scientific Reports, and several materials journals.