Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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On the Standard Composition of ZnO Varistor having Higher Nonlinearity and the Effect of Additives

높은 비직선성을 갖는 ZnO 바리스터의 기본조성 결정과 첨가물에 의한 영향

  • 정주헉 (한양대학교 재료공학과) ;
  • 진희창 (한양대학교 재료공학과) ;
  • 마재평 (한양대학교 재료공학과) ;
  • 백수현 (한양대학교 재료공학과)
  • Published : 1987.07.03
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Abstract

In order to determine the standard composition of ZnO varistor with higher nonlinearity, various contents of $MnO_2$, $Co_2O_3$ were added to ZnO-1.0m/o $Bi_2O_3$ system. Also, samples that contained small amount of Sb, Si-oxides in standard composition determined before were fabricated. As a result, the standard composition of higher nonlinearity-oriented ZnO varistor was shown as ZnO-1.0 m/o $Bi_2O_3$-1.0m/o $MnO_2$-1.0m/o $Co_2O_3$ and $Sb_2O_3$ largely enhanced nonlinear exponent and nonlinear resistance, hut SiO largely enhanced nonlinear exponent only.

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