Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication and Electrical Characteristics of ZnO Nano-powder Varistors

ZnO 나노파우더 바리스터의 제작과 전기적 특성

  • 유인성 (원광대학교 전기전자 및 정보공학부) ;
  • 정종엽 (원광대학교 전기전자 및 정보공학부) ;
  • 박춘배 (원광대학교 전기전자 및 정보공학부)
  • Published : 2005.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, our varistors based on M. Matsuoka's composition were fabricated with ZnO nano-powder whose sizes were 50 nm and 100 nm. Before fabrication of ZnO nano-powder varistors, structure and Phase were analyzed by FE-SEM and XRD with size of ZnO nano-powders to obtain manufacturing information to fabricate the first ZnO varistors using by nano-powders. As a results of these analyses, calcination and sintering temperatures were respectively designed at $600^{\circ}C\;and\;1050^{\circ}C$. ZnO nano-powder varistors were analyzed by SEM and XRD to measure the changes of microstructures and phase after sintered by out process conditions. Also, electrical properties of ZnO nano-powder varistors were obtained by capacitance-voltage, frequency-teal impedance, and current-voltage corves. Our ZnO nano-powder varistors had about 2.5 times of electric field at varistor voltage as compared with normal ZnO varistors fabricated with micro-powder. Also, leakage current and non-liner coefficient respectively had $2.0{\times}10^{-6}A/cm^{-2}$ and 41 for ZnO nano-powder varistors with 50 nm.

Keywords

References

  1. M. Matsouka, 'Nonohmic properties of zinc oxide ceramics', Jpn. J. Appl. Phys., Vol. 10, No.6, p. 736, 1971
  2. 소순진, 김영진, 박춘배, '분위기 소결공정에 의해 제조된 ZnO 세라믹 바리스터의 열화기구 연구', 전기전자재료학회논문지, 13권, 5호, p. 383, 2000
  3. T. K. Gupta, 'Application of zinc oxide varistors', J. AM. Ceram. Soc., Vol. 73, No. 7, p. 1817, 1990
  4. S. -J. So and C. B. Park, 'Analysis of the degradation characteristics using EPMA and the ambient sintering process in semiconducting zoo ceramic varistors', J. Kor. Phy. Soc., Vol. 38, No.4, p. 416, 2001
  5. S. - J. So and C. - B. Park, 'Improvement in the electrical stability of semiconducting ZnO ceramic varistors with $SiO_{2}$ additive', J Kor. Phy. Soc., Vol. 40, No.5, p. 925, 2002
  6. 김석수, 조한구, 박태곤, 박춘현, 정세영, 김병규, '배전급 피뢰기용 ZnO 바리스터 소자의 미세구조 및 서지 특성에 관한 연구', 전기전자재료학회논문지, 15권, 2호, p. 190, 2002
  7. 한세원, 강형부, 김형식, '$Al_{2}O_{3}$가 미량 첨가된 비선형성 ZnO 바리스터의 미세구조와 전도 기구', 전기전자재료학회논문지, 9권, 7호, p. 708, 1996
  8. M. S. Castro, M. A. Benavente, and C. M. Aldao, 'Degradation in ZnO varistors', J. Phys. Condents. Matt., Vol. 5, No. 33, p. A341, 1993
  9. Wu Jun, Xie Changsheng , Bai Zikui, Zhu Bailin, Huang Kaijin, and Wu Run, 'Preparation of ZnO-glass varistor from tetrapod ZnO nanopowders', Materials Science and Engineering B, Vol. 95, No.2, p. 157, 2002
  10. Kang Xue Ya, Han Yin, Tao Ming De, and Tu Ming Jing, 'Analysis of varistors prepared from nanosize ZnO precursors', Materials Research Bulletin, Vol. 33, No. 11, p. 1703, 1998
  11. Jianzhang Shi, Quanxi Cao, Yunge Wei, and Yunxia Huang, 'ZnO varistor manufactured by composite nanc-additives', Materials Science and Engineering B, Vol. 99, No . 1-3, p. 344, 2003 https://doi.org/10.1016/S0921-5107(02)00437-3
  12. A. J. Moulson and J. M. Herbert, 'Electroceramics', Chapman and Hall, p. 86, 1990
  13. K. Mukae, K. Tsuda, and I. Nagasawa, 'Capacitance-vs-voltage characteristics of ZnO varistors', J. Appl. Phys., Vol. 50, No. 6, p. 4475, 1979
  14. 남춘우, 김향숙, 'ZPCCYrP 바리스터 세라믹스의 소결시간에 따른 전기적, 유전적 특성', 전기전자재료학회논문지, 15권, 11호, p. 946, 2002
  15. 소순진, 임근영, 박춘배, 'ZnO 바리스터의 단입계면 분석을 위한 마이크로 전극 제작과 전기적 특성 해석', 전기전자재료학회논문지, 18권, 3호, p. 231, 2005
  16. 임근영, 정종엽, 이관우, 박춘배, '$SiO_{2}$ 첨가량에 따른 ZnO 나노파우더 바리스터의 비선형 특성', 한국전기전자재료학회 2005춘계학술대회논문집, p. 109, 2005