海外名师大讲堂---Design of materials properties by microstructure and external fields
讲座名称：
海外名师大讲堂---Design of materials properties by microstructure and external fields
讲座时间：
2018-06-08
讲座人：
Horst Hahn
形式：
校区：
兴庆校区
实践学分：
讲座内容：
海外名师大讲堂---学术报告
讲座题目：Design of materials properties by microstructure and external fields
讲座时间： 6月8日（星期五）早上10：00-11：00
讲座地点：科学馆207
讲 座 人：Horst Hahn教授（德国科学院院士，美国工程院院士，欧洲科学院院士）
讲座内容摘要： The mechanical, physical and chemical properties of materials are determined by their microstructure. Modern materials science uses the complex interplay of defects, such as impurities, phases, point and line defects and interfaces, to tailor properties and obtain high-performance metallic alloys and ceramics. Two examples for designing materials properties will be presented, nanoglasses and equiatomic multicomponent single phase oxides. Metallic glasses offer interesting properties due to their disordered atomic structure. Due to the fact that they are prepared predominantly by rapid quenching, only a certain range of microstructural parameters has yet been explored. Equiatomic multicomponent single phase oxides, oxides with simple crystallographic structures consisting of up to 10 different cations, have been prepared by different synthesis routes. In contrast, tuning using external fields, i.e., electric, offers completely new opportunities for the fully reversible control of materials properties. Such tuning of physical properties will be demonstrated for several nanostructures, i.e. (epitaxial) thin films, nanoporous, nanoparticulate structures and nanowires.
（该项目受国家外专局外国文教专家项目支持。）
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