Development of microscopic observation under atmospheric and stress environment and its application to ceramics

为了真正了解材料的结构-性能关系，必须研究外部刺激下的结构。在这个研究项目中，我们开发了机械应力和电场等外部刺激下的原位电子显微镜，并将这些技术应用于一些陶瓷材料。成果包括直接观测机械应力下的位错运动和孪晶形成以及直接观测压电材料中的畴运动等。

In order to truly understand the structure-property relationship of materials, structure under external stimuli must be investigated. In this research project, we have developed in-situ electron microscopy under external stimuli such as mechanical stress and electric field, and we have applied these techniques to some ceramic materials. The achievement includes direct observations of the dislocation motion and twin formations under mechanical stresses and the direct observations of domain movement in piezoelectric materials, and so on.