Influence of additives on dielectric ceramic for high voltage capacitors

被引：0

作者：

Zhang, SH ^{[1
]}

Fan, FK ^{[1
]}

机构：

[1] Nanchang Univ, Dept Mat Sci & Engn, Jiangxi 330047, Peoples R China

来源：

PROCEEDINGS OF THE FIRST CHINA INTERNATIONAL CONFERENCE ON HIGH-PERFORMANCE CERAMICS | 2001年

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：

The influence of MnCO3, Nb2O5,CuO on the dielectric behaviors of the system 0.9(Sr0.54Pb0.26Ca0.20)TiO3 -0.10Bi(2)O(3).3.5TiO(2) was investigated, the phenomena were observed: (1) The permittivity peak decreased and shifted to a high temperature with the addition of MnCO3;(2) The permittivity peak moved to a low temperature when Nb2O5 was doped;(3) The incorporation of CuO made the permittivity peak broader, resulting in a low temperature coefficient of permittivity. With the aid of ionic displacement theory for ferroelectric. and ionic substitution theory, we had a satisfactory explanation for (1) and (2), the conclusion in (3) was supposed to be related to the distribution of oxygen vacancies caused by the valence change of copper ions.

引用

页码：322 / 325

页数：4

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