ELECTRICAL-PROPERTIES OF SR0.7BA0.3TIO3 CERAMICS DOPED WITH NB2O5, 3LI2O.2SIO2, AND BI2O3

被引:17
|
作者
ZHOU, LQ
JIANG, ZH
ZHANG, SR
机构
[1] Department of Materials Science and Engineering, University of Electronic Science and Technology of China, Chengdu
关键词
D O I
10.1111/j.1151-2916.1991.tb06865.x
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 electrical properties of Sr0.7Ba0.3TiO3 in the presence of Nb2O5 as a donor, 3Li2O.2SiO2 as a sintering agent, and Bi2O3 as a dopant have been studied. When the compositions of the ceramics were 1 mol Sr0.7Ba0.3TiO3 + 0.5 mol% Nb2O5 + 2 mol% 3Li2O.2SiO2 + 0.2 mol% Bi2O3, the ceramics were sintered at 1100-degrees-C and exhibited the following characteristics: apparent dielectric constant epsilon, 25 000; loss factor tan-delta, 2%; insulating resistivity rho-j, 10(10) OMEGA.cm; variation of dielectric constant with temperature DELTA-epsilon/epsilon (-25-degrees to +85-degrees-C), +10%, -14%. Epsilon and tan-delta show only small changes with frequency. The study shows this ceramic can be used in multilayer technology.
引用
收藏
页码:2925 / 2927
页数:3
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