5月3日，应陈鹏万教授邀请，佐治亚理工学院 (Georgia Institute of Technology)  Mo Li 教授到北京理工大学进行了访问和学术交流。Mo Li 教授作了题为 “Topological and Atomic-scale Characterization of Grain Boundary Networks in Poly- and Nano-crystalline Materials and its Applications”的报告。来自材料学院、机电学院及机械学院等单位的老师和学生共30余人参加了本次报告会。报告会由陈鹏万教授主持。

Mo Li 教授报告的主要内容是多晶材料和纳米晶材料晶界网络的拓扑及原子尺度表征。报告从以下几个方面介绍了多晶及纳米晶材料：一、多晶材料微结构不同维度的几何拓扑，比如颗粒尺寸、晶界平面、三重交界线和顶点等；二、通过控制多晶材料微结构可以获得所需要的材料性能，并举例古代在高温热处理条件下获得性能优越的越王剑；三、微结构材料由于条件限制很难测量其性质，通过理论分析和分子动力学模拟可对晶界网格的变化进行精确研究。Mo Li 教授重点结合分子动力学模拟对材料微结构变化进行了详细介绍。

       报告引起了与会师生的浓厚兴趣，大家就报告中材料微结构、分子动力学模拟等方面的问题以及自己科研中所遇到的相关瓶颈问题与 Mo Li 教授进行了热烈的交流和讨论。

Mo Li 教授简介：

 

Professor Mo Li received his Ph.D. in applied physics in 1994 from California Institute of Technology. After a brief staying as a postdoctoral fellow at Caltech and the Argonne National Laboratory, he joined Morgan Stanley & Co. in New York. He came back to academia in 1998. From 1998 to 2001 he was an assistant professor at the Johns Hopkins University. Currently he is a professor at the Georgia Institute of Technology and a Thousand-Talent Program professor in the School of Materials Science and Engineering at Tsinghua University. Professor Li's research focuses on understanding fundamental properties and processes of materials, and predicting material behaviors. The approaches used in his research are a blend of those from statistical physics, solid state physics, materials science, metallurgy, mechanics and large scale, high performance computing. His research focuses on algorithm development, simulation, and theoretical analysis.