Electromechanical Properties and Microstructure Evolution of BNT-BT Piezoelectric Ceramics

被引：7
|
作者：
Shi, Jing [1 ]
Fan, Huiqing [1 ]
Li, Zhuo [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
FERROELECTRICS | 2010年 / 404卷
关键词：
BNT-BT; piezoelectric ceramics; electromechanical properties; phase transition;
D O I：
10.1080/00150193.2010.482456
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lead-free piezoelectric ceramics, (Na0.5Bi0.5) 0.92Ba0.08TiO3 (BNT-BT) have been synthesized by a conventional solid state sintering method. The dependence of temperature on dielectric and ferroelectric properties of lead-free piezoelectric ceramics were investigated. The ceramics exhibit a giant strain with the increase of temperature. The piezoelectric coefficient (d(333)) is about 149pC/N at RT. The electromechanical properties were explained based on a field induced antiferroelectric-ferroelectric phase transition.
引用
收藏
页码：93 / 98
页数：6
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