Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

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

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