Evidence of macro-micro domain transition in poled PMN-PZT ceramics

被引：19

作者：

Du, Gang ^{[1
]}

Liang, Ruihong ^{[1
]}

Wang, Junxia ^{[1
]}

Wang, Li ^{[1
]}

Zhang, Wenbin ^{[1
]}

Wang, Genshui ^{[1
]}

Dong, Xianlin ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 201800, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期

关键词：

Microdomain; Macrodomain; Piezoelectric ceramics; Relaxor; RELAXOR FERROELECTRIC TRANSFORMATIONS; PHASE-TRANSITION; BEHAVIOR; FIELD;

D O I：

10.1016/j.ceramint.2013.05.044

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The dielectric properties of unpoled and poled Pb0.88Ba0.06Sr0.06(Mg1/3Nb2/3)(0.37)Zr0.375Ti0.255O3 (modified PMN-PZT) ceramics were investigated. It was found that the dielectric constant increased while the loss tangent decreased after poling. A frequency independent abrupt transition in the dielectric constant and loss tangent responses was observed for the poled ceramics. This abnormal behavior was believed to be correlated with the macro-micro domain transition and the corresponding pyroelectric measurement exhibited a narrow peak at the normal-relaxor transition temperature T-nr. Furthermore, the presence of double-loop-like hysteresis and two types of current peaks at a temperature slightly higher than T-nr showed another strong evidence of this transition. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All tights reserved.

引用

页码：9299 / 9303

页数：5

共 25 条

[1] PYROELECTRIC COEFFICIENT DIRECT MEASUREMENT TECHNIQUE AND APPLICATION TO A NSEC RESPONSE TIME DETECTOR [J].