Classical or relaxor ferroelectric ceramics in the BaTiO3-KNbO3-CaTiO3 system

被引：18

作者：

Ravez, J ^{[1
]}

Simon, A ^{[1
]}

机构：

[1] CNRS, ICMCB, F-33608 Pessac, France

来源：

SOLID STATE SCIENCES | 1999年 / 1卷 / 01期

关键词：

D O I：

10.1016/S1293-2558(00)80062-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In perovskites, the relaxor behavior occurs dominantly in lead based compositions. The study of the BaTiO3 - KNbO3 binary diagram provided previously evidence for new free from lead ferroelectric relaxer properties but unfortunately at low temperature. The present dielectric studies of ceramics with composition inside the BaTiO3 - KNbO3 - CaTiO3 showed some of them to be ferroelectric relaxer at temperature close to 300K. Such a favourable effect is due to the Ca2+ - Ba2+ cationic substitution. These new compositions are of interest for applications (dielectric for capacitors, actuators) in the way of environmental protection.

引用

页码：25 / 35

页数：11

共 10 条

[1] PHASE TRANSITIONS IN SYSTEM BATIO3-KNBO3 [J].