Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Improvement of the Electrical Stability Versus MgO Addictive for ZnO Ceramic Varistors

MgO 첨가에 따른 ZnO 세라믹 바리스터의 신뢰성 향상에 관한 연구

  • 소순진 (원광대학교 대학원 전기재료공학과) ;
  • 김영진 (삼례공업고등학교 전자통신과 교사) ;
  • 송민종 (광주보건대학 의료정보공학과) ;
  • 박복기 (호원대학교 전기전자정보공학부) ;
  • 박춘배 (원광대학교 전기전자 및 정보공학부)
  • Published : 2001.07.01
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Abstract

The degradation characteristics versus MgO Additive for the ZnO ceramic devices fabricated by the standard ceramic techniques is investigated in this study. It were made these devices be basic Matsuoka's composition. Especially, MgO were added to analyze the degradation characteristics and sintered in air at 1300$^{\circ}C$. The conditions of DC degradation test were 115${\pm}$2$^{\circ}C$ for 12h. Using XRD and SEM, the phase and microstructure of samples were analyzed respectively. The elemental analysis in the microstructures was used by EDS, E-J analysis was used to determine ${\alpha}$ . Frequency analysis was accomplished to understand the relationship between R$\sub$g/ and $R_{b}$ with the electric stress at the equivalent circuit.

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