대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

사마륨 옥사이드가 첨가된 $Pr_6O_{11}$계 ZnO 바리스터의 전도특성

Conduction Characteristics of $Pr_6O_{11}$-Based ZnO Varistor Added with Samarium Oxides

  • 윤한수 (동의대학교 전기공학과) ;
  • 박춘현 (동의대학교 전기공학과) ;
  • 남춘우 (동의대학교 전기공학과)
  • Yoon, Han-Soo (Department of Electrical Engineering, Dongeui University) ;
  • Park, Choon-Hyun (Department of Electrical Engineering, Dongeui University) ;
  • Nahm, Choon-Woo (Department of Electrical Engineering, Dongeui University)
  • 발행 : 1999.07.19
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초록

The conduction characteristics of $Pr_6O_{11}$-based ZnO varistor were investigated. ZnO-$Pr_6O_{11}$-CoO-$Sm_2O_3$-based ZnO varistor were sintered at $1300^{\circ}C$ and $1350^{\circ}C$ in the addition range $0.0\sim2.0mol%$ $Sm_2O_3$, respectively. ZnO varistors which are added with 1.0mol% at each temperature exhibited best excellent conduction characteristics, namely the nonlinear exponent was 42.05 at $1300^{\circ}C$, 36.79 at $1350^{\circ}C$ and leakage current was $9.16{\mu}A$ at $1300^{\circ}C$, $11.7{\mu}A$ at $1350^{\circ}C$. Consequently, it is estimated that ZnO-$Pr_6O_{11}$-CoO-$Sm_2O_3$-based ZnO varistors, which $Sm_2O_3$ is added 1.0mol% is to be used as a basic composition of $Pr_6O_{11}$-based ZnO varistors.

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