摘要
把Ｈｅｙｗａｎｇ模型和铁电软模理论结合起来，导出了ＢａＴｉＯ３半导体陶瓷的电阻－温度定量公式．从理论上推导了居里点移动的经验公式．理论计算与实验数据有较好的符合．
The Mechanism of the PTC effect of the BaTiO 3 semiconductive ceramics was analysed quantitatively with the idea that combines Heywang′s semiconductive theory of resistance temperature with Curie point′s shift of BaTiO 3 semiconductive ceramics.Comparison between theoretic and experimental curves proves that the theoretical method being adopted is feasible.The theoretical equation agrees well with the results of experimental measurements.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
1997年第3期335-339,共5页
Journal of Inner Mongolia University：Natural Science Edition
基金
内蒙古大学科学基金
关键词
PTC效应
居里点
钛酸钡
半导体陶瓷
Barium titanate semiconductive ceramics PTC effect Softmodes in ferroelectronics Curie point
