Dielectric properties of acceptor-doped (Ba,Ca)(Ti,Zr)O3 ceramics

被引：86

作者：

Hansen, P ^{[1
]}

Hennings, D ^{[1
]}

Schreinemacher, H ^{[1
]}

机构：

[1] Philips Res Labs, D-52085 Aachen, Germany

来源：

JOURNAL OF ELECTROCERAMICS | 1998年 / 2卷 / 02期

关键词：

D O I：

10.1023/A:1009922906146

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 (Ba,Ca)(Ti,Zr)O-3 ceramics containing various acceptor and donor dopants on the B sites have been studied. Formation of charge compensating "complexes" between acceptors, donors and oxygen vacancies has been observed. All accepters cause a reduction of the Curie point. The maximum dielectric constant increases with the average grain size almost independent of the acceptor incorporated. Ceramics filed in reducive atmospheres reveal pronounced changes of the dielectric properties after annealing in oxidizing atmosphere. In particular the losses and the maximum dielectric constants an significantly affected by the annealing time, temperature and partial pressure of oxygen.

引用

页码：85 / 94

页数：10

共 17 条

[1] DIELECTRIC-PROPERTIES OF FINE-GRAINED BARIUM-TITANATE CERAMICS [J].