摘要
综述了铋层状压电陶瓷共生与复合体系结构特点及性能研究。组构共生结构或复合结构都是增大铋系层状钙钛矿结构铁电材料(BLSFs)剩余极化(2Pr)的有效手段。两种不同的BLSFs组构成共生或复合结构后,铋氧层以及与之相连的氧八面体的结构都发生变化,使共生结构的2Pr大于其任一组成单元,居里温度也发生了变化。
This paper reviewed the structures and properties about the intergrowth and composite structure of bismuth layer-based piezoelectric ceramics. Both construction of composite structured and construction of intergrowth are the effective methods to enlarge the remnant polarization (2Pr) of the Bismuth layer-structured ferroelectrics (BLSFs) . After forming intergrowth or composite structure, the structure of (Bi2O2)2+ layers and the linked octahedra are different from that in each units , which increases the 2Pr . The Curie temperature (θC) changed.
出处
《电子科学技术》
2015年第1期18-25,共8页
Electronic Science & Technology
关键词
铋层状结构
剩余极化
共生结构
复合结构
Bismuth layer-based ferroelectrics
Remnant polarization
Intergrowth structure
Composite structure