Non-stoichiometric perovskites derived from BaTiO3 with a ferroelectric relaxor behaviour

被引：0

作者：

Ravez, J ^{[1
]}

Simon, A ^{[1
]}

机构：

[1] CNRS, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 2000年 / 178卷 / 02期

关键词：

D O I：

10.1002/1521-396X(200004)178:2<793::AID-PSSA793>3.3.CO;2-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystallographic and low frequency dielectric studies were performed on lead-free non-stoichiometric perovskite ceramics of Ba(1-x)A(x/2)(Ti1-xNbx)O-3 (A = Ca, Sr, Ba) compositions. A classical ferroelectric behaviour was shown for x varying from 0 to 0.05. A relaxer behaviour appears for higher values of x. The corresponding relaxer characteristics increased as the composition deviated from BaTiO3. They are only slightly dependent on the substituted cations in the 12-coordination number (12-C.N.) crystallographic site. Such kind of materials are of interest for environmental friendly applications.

引用

页码：793 / 797

页数：5

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