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BaTiO3 PTCR陶瓷阻温系数的研究

王评初; 李峥; 徐保民; 王依琳; 殷之文   

  1. 中国科学院上海硅酸盐研究所; 上海 200050
  • 收稿日期:1997-03-12 修回日期:1997-06-06 出版日期:1997-12-20 网络出版日期:1997-12-20

Study on Temperature Coefficient of Resistance of BaTiO3 PTCR Ceramics

WANG Pingchu; LI Zheng; XU Baomin; WANG Yilin; YIN Zhiwen   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-03-12 Revised:1997-06-06 Published:1997-12-20 Online:1997-12-20

摘要: 本文以Heywang模型为基础,分析了影响BaTiO3PTCR陶瓷阻温系数α的主要因素,并给出了解析关系.各参数的测量结果与该关系基本相符.

关键词: 钛酸钡, PTCR

Abstract: Main factors influencing α(temperature coefficient of resistance) of BaTiO3 PTCR ceramicswere analysed based on Heywang model. A relation between α and acceptor density at grainboundaries, donor density and Curie constant was given, and the experimental results are inreasonable consistence with the relation.

Key words: BaTiO3, PTCR