Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on the Basic Compositions for Low Voltage ZnO Varistor System

저전압용 바리스터계의 기본조성에 관한 연구

  • 백수현 (한양대학교 재료공학과) ;
  • 마재평 (한양대학교 재료공학과) ;
  • 강희창 (한양대학교 재료공학과)
  • Published : 1987.06.01
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Abstract

To establish the basic composition of low voltage varistor and to find the role of each compont in detail, we investigated the electrical properties and the microstructures. As a result, ZnO 1.0m/oBi2O3-1.0m/oCo2kO3-0.2m/oMnO2 system was optimum for low voltage varisor. We found that Bi2o3 promotes grain growth of ZnO and that Co2O3 doped in ZnO grain lowers the nonlinear resistance and MnO2 mainly existed near the ZnO grainboundary elevates nonlinear resistance.

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