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

为了真正理解材料的结构-性能关系，必须研究材料在外界刺激下的结构。在本研究项目中，我们开发了在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。这些成果包括直接观测到机械应力作用下位错运动和孪晶的形成以及直接观测到压电材料中畴的运动等。

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.