Influence of the presence of secondary phases on the piezoelectric properties of PZT-based ceramics

被引：2
|
作者：
Jardiel, T [1 ]
Fernández, JF [1 ]
Caballero, AC [1 ]
Villegas, M [1 ]
机构：
[1] CSIC, Inst Ceram & Vidrio, Dept Electroceram, Madrid 28500, Spain
来源：
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2002年 / 41卷 / 01期
关键词：
lead titanate zirconate; microstructure; Curie temperature;
D O I：
10.3989/cyv.2002.v41.i1.689
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：
A comparative study of the microstructure, the dielectric, and the piezoelectric properties of PZT-5A type ceramics unmodified and modified with an excess of Nb2O5 has been carried out. By SEM, the microstructure of the modified ceramics appears more heterogeneous than that corresponding to the unmodified one. The piezoelectric and dielectric properties of both materials, with and without Nb2O5 addition, have been measured. The influence of the secondary phases on the variation of the Curie temperature has been determined, as well as the displacement of the PZT composition due to extraction of PbO from the PZT matrix.
引用
收藏
页码：10 / 15
页数：6
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