Abstract
This year marks 21st anniversary of the birth of (Bi1/2Na1/2)TiO3-BaTiO3 (BNT-BT) lead-free piezoceramic material, which has been extensively studied and considered as one of the most promising lead-free systems so far. Among all the achievements in this system is the discovery of the so-called incipient piezoelectricity where an exceptionally large electric-field-induced strain is realizable. Over the last half a decade, we have devoted to better understanding the underlying mechanism based on which the incipient piezoceramics can find their way to practical applications. In this seminar, we would like to present the historical overview over the topic with the state of the arts, casting prospects towards the future direction.
*Presenting author’s email: jo@ceramics.tu-darmstadt.de
CV
Wook Jo 博士， 2005 年获韩国首尔大学（Seoul National University）博士学位。现任德国达姆斯塔特工业大学（Technische Universität Dearmstadt）J. Roedel 教授课题组高级科学家，无铅压电陶瓷方向学术带头人。目前的主要研究领域为无铅压电陶瓷材料，高性能弛豫铁电体等，近年来尤其在以钛酸铋钠基无铅压电陶瓷的成分设计、结构分析及其场致相变理论方面做出了杰出的工作，受到国际同行极大关注。W. Jo 博士目前已发表64 篇SCI 学术论文，包括两篇专业顶级期刊Journal of the American Ceramic Society 的Feature Article。SCI 论文被引用超过600 次。出版2 部专著，及合编1 部专著。申请德国专利1 项。19 次在国际会议上做邀请报告。
|
