Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Effects of Ca Addition on the PTC Properties of $BaTiO_3$

$BaTiO_3$계의 PTC 특성에 미치는 Ca 첨가의 영향

  • 김병수 (인하대학교 전기공학과) ;
  • 박준식 (전자부품종합기술연구소) ;
  • 박광범 (전자부품종합기술연구소) ;
  • 김철수 (전자부품종합기술연구소) ;
  • 이덕출 (인하대학교 전기공학과)
  • Published : 1997.07.21
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Abstract

We have investigated the influence of Ca addition in the characteristics of the modified $BaTiO_3$ system. The specimens were fabricated with variations of Ca addition between 0mol% and 20mol%, and sintered in the $1350^{\circ}C$. It show that PTC effect was decreased with the increasing Ca mol% from 0 to 15 mol% and, In the analysis of SEM., the grain sizes were small with increasing Ca mol%.

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