INFLUENCE OF HIGH OXYGEN PARTIAL-PRESSURE ANNEALING ON THE POSITIVE TEMPERATURE-COEFFICIENT OF MN-DOPED BA0.8SR0.2TIO3

被引：15

作者：

HUYBRECHTS, B

ISHIZAKI, K

TAKATA, M

机构：

[1] Nagaoka University of Technology, 940-21 Niigata

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1993年 / 11卷 / 05期

关键词：

D O I：

10.1016/0955-2219(93)90014-I

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：

A barium strontium titanate compound which exhibited positive temperature coefficient resistivity (PTCR) behavior was annealed in high oxygen partial pressures, in order to obtain a high acceptor density at the grain boundaries. The PTCR behavior changed significantly. Rises in maximum resistivity up to 200 times were obtained. The temperature of maximum resistivity decreased by 40-50-degrees-C. From the Heywang model the changes in PTCR behavior due to the high oxygen partial pressure annealing are explained by a rise in acceptor density possibly accompanied by an increase in acceptor energy.

引用

页码：395 / 400

页数：6

共 31 条

[1] THE EFFECT OF MN ON THE POSITIVE TEMPERATURE-COEFFICIENT OF RESISTANCE CHARACTERISTICS OF DONOR DOPED BATIO3 CERAMICS [J].