Na_(1/2)Bi_(1/2)TiO_3基无铅压电体系退极化行为  

Development of the Depolarization Behavior of Lead-free/Na_(1/2)Bi_(1/2)TiO_3-Based Piezoelectrics

作　　者：朱满康[1] 段成辉[1] 雷娜[1] 宋雪梅[1] 侯育冬[1] 严辉[1] 

机构地区：[1]北京工业大学材料学院,北京100124

出　　处：《真空电子技术》2013年第4期6-12,共7页Vacuum Electronics

基　　金：国家自然科学基金项目(51172006;51072008)

摘　　要：本文总结了钛酸铋钠[Na1/2Bi1/2TiO3,BNT]的相变过程,特别是其低温下出现的退极化现象的研究现状。同时,对目前研究的NBT基复合体系的准同型相界及其退极化行为方面的研究进展进行了总结,归纳了关于影响退极化温度的机制的几种观点。In this paper,the researches in the phase transformation of sodium bismuth titanate [（Bi1/2Na1/2） TiO3,BNT],especially its depolarization phenomenon,were summed up.Besides,the current studies on traditional BNT-based complex systems and their depolarization behaviors near morphtropic phase boundary （MPB） were summarized,and the mechanisms affecting the depolarization temperature of BNT-based systems were reviewed.

关 键 词：Na1 2Bi1 2TiO3 无铅压电 退极化行为 Bi基钙钛矿 

分 类 号：TM282[一般工业技术—材料科学与工程]