대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

$(Sr{\cdot}Pb)TiO_3$계 세라믹의 전기전도 및 절연파괴 특성에 관한 연구

A Study on the Electrical Conduction and D.C. Breakdown Properties of $(Sr{\cdot}Pb)TiO_3$ Series Ceramic

  • 정일형 (광운대학교 대학원 전기공학과) ;
  • 최운식 (광운대학교 대학원 전기공학과) ;
  • 김충혁 (광운대학교 대학원 전기공학과) ;
  • 이준웅 (광운대학교 공과대학 전기공학과)
  • Jung, I.H. (Dept. of Elec. Eng. Grad., Kwang Woon Univ.) ;
  • Choi, W.S. (Dept. of Elec. Eng. Grad., Kwang Woon Univ.) ;
  • Kim, C.H. (Dept. of Elec. Eng. Grad., Kwang Woon Univ.) ;
  • Lee, J.U. (Dept. of Elec. Eng. Kwang Woon Univ.)
  • 발행 : 1991.11.22
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초록

In this study, $(Sr{\cdot}Pb)TiO_3$ series ceramics which is used in high voltage were fabricated by the mixed oxide method, and the electrical conduction mechanism and D.C. breakdown voltage characteristics of the specimens in accordance with the contents of $Bi_2O_3{\cdot}3TiO_2$ were investigated. As a result, the leakage current was increased with the contents of $Bi_2O_3{\cdot}3TiO_2$ and the measuring temperature. At room temperature, the leakeage current was showed a tendency of saturating when D.C. electrical field of $l5{\sim}30$[kV/cm] was applied to the specimen. As a result of breakdown voltage characteristics. breakdown strength was decreased when the contents of $Bi_2O_3{\cdot}3TiO_2$ were increased. On the other hand, in the temperature region below $60[^{\circ}C]$, the electronic breakdown was occured, and in the temperature region from 60 to $200[^{\circ}C]$, the thermal breakdown was occured by the Joule heat and the dissipation factor.

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