High-K dielectric ceramics from donor/acceptor-codoped (Ba1-xCax)Ti1-yZry)O3 (BCTZ)

被引：0
|
作者：
Hansen, P [1 ]
Hennings, D [1 ]
Schreinemacher, H [1 ]
机构：
[1] Philips Res Labs, D-52066 Aachen, Germany
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1998年 / 81卷 / 05期
关键词：
D O I：
暂无
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：
(Ba1-xCax)(Ti1-yZry)O-3 ceramics doped with various donors and accepters were sintered in a reducing atmosphere and then annealed at different oxygen partial pressures. The dielectric maxima at the Curie point increased up to similar to 30000 after reoxidation, depending on the grain size, the type of acceptor, and the annealing conditions. The increase of the dielectric maxima seems to be correlated with oxidation of the grain boundaries. The dielectric properties show relaxation effects with increased frequency.
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页码：1369 / 1373
页数：5
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