A Study on Fabrication of Semiconducting <TEX>$BaTiO_3$</TEX> Ceramics at Lower Sintering Temperature

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J. Korean Ceram. Soc. > Volume 33(2); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(2): 183.

저온 소결에 의한 반도성 $BaTiO_3$ 세라믹스 제조에 관한 연구

김준수, 김흥수, 권오성¹, 이병하¹

한국에너지기술연구소 에너지재료연구팀
¹명지대학교 공과대학 무기재료공학과

A Study on Fabrication of Semiconducting $BaTiO_3$ Ceramics at Lower Sintering Temperature

ABSTRACT

For the fabrication of semiconducting BaTiO3 ceramics at lower sintering temperature BN was selected as a sintering aid and the microsturcture of semiconducting BaTiO3 ceramics and PTCR characteristics by their microstructural changes were investigated. by adding BN to 0.1 mol% Sb2O3-doped BaTiO3 ceramics the sintering temperature showing semiconducting BaTiO3 ceramics was reduced by 16$0^{circ}C$ from 130$0^{circ}C$ to 114$0^{circ}C$ and the specific resistivity ratio was increased as the amount of BN was increased.

Key words: Semiconducting $BaTiO_3$ ceramics, PTCR, Low sintering temperature, BN