Dielectric Properties of Acceptor-Doped (Ba,Ca)(Ti,Zr)O3 Ceramics

被引：0
作者：
P. Hansen
D. Hennings
H. Schreinemacher
机构：
[1] Philips Research Laboratories,
[2] Aachen,undefined
[3] Germany,undefined
来源：
Journal of Electroceramics | 1998年 / 2卷
关键词：
Oxygen; Polymer; Grain Size; Atmosphere; Dielectric Constant;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The dielectric properties of (Ba,Ca)(Ti,Zr)O3 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 acceptors cause a reduction of the Curie point. The maximum dielectric constant increases with the average grain size almost independent of the acceptor incorporated. Ceramics fired in reducive atmospheres reveal pronounced changes of the dielectric properties after annealing in oxidizing atmosphere. In particular the losses and the maximum dielectric constants are significantly affected by the annealing time, temperature and partial pressure of oxygen.
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页码：85 / 94
页数：9
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