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Effect of Sintering Temperature on Impulse Current Stress Characteristics of ZPCCL-based Varistors

소결온도가 ZPCCL계 바리스터의 충격전류 스트레스 특성에 미치는 영향

  • 남춘우 (동의대학교 전기공학과)
  • Published : 2008.07.01

Abstract

The nonlinear electrical properties and aging characteristics against surge stress of ZPCCL-based varistors were investigated for different sintering temperatures of the range $1240-1300^{\circ}C$. As the sintering temperature increased, the varistor voltage decreased from 732.2 to 53.8 V/mm, the nonlinear exponent decreased from 58.5 to 4.1, and the leakage current increased from $0.38{\mu}A$ to $46.5{\mu}A$. The varistors sintered at $1250^{\circ}C$ and $1260^{\circ}C$ exhibited the high stability against multiple surge, $150A/cm^2(8{\times}20{\mu}s)$. On the whole, the variation rate of electrical characteristics against impulse current stress was gradually increased in order of varistor voltage$\rightarrow$nonlinear exponent$\rightarrow$dissipation facto$\rightarrow$leakage current.

References

  1. L. M. Levinson and H. R. Pilipp, 'Zinc oxide varistor-A review', Am. Ceram. Soc. Bull., Vol. 65, No. 4, p. 639, 1986
  2. T. K. Gupta, 'Application of zinc dxide varistor', J. Am. Ceram. Soc., Vol. 73, No. 7, p. 1817, 1990 https://doi.org/10.1111/j.1151-2916.1990.tb05232.x
  3. D. R. Clarke, 'Varistors ceramics', J. Amer. Ceram. Soc., Vol. 82, No. 3, p. 485, 1999 https://doi.org/10.1111/j.1151-2916.1999.tb01793.x
  4. K. Mukae, K. Tsuda, and S. Shiga, 'Development of adanced arresters for GIS with new zinc-oxide elements', EEE Trans. Pow. Deliv., Vol. 3, No. 2, p. 591, 1988 https://doi.org/10.1109/61.4296
  5. S. Shichimiya, M. Yamaguchi, N. Furuse, M. Kobayashi, and S. Ishibe, 'Development of advanced arresters for GIS with new zinc-oxide elements', IEEE Trans. Pow. Deliv., Vol. 13, No. 2, p. 465, 1998 https://doi.org/10.1109/61.660916
  6. A. B. Alles, R. Puskas, G. Callahan, and V. L. Burdick, 'Compositional effects on the liquid-phase sintering of praseodymium oxides-based zinc oxides varistors', J. Amer. Ceram. Soc., Vol. 76, No. 8, p. 2098, 1993 https://doi.org/10.1111/j.1151-2916.1993.tb08339.x
  7. Y.-S. Lee, K.-S. Liao, and T.-Y. Tseng, 'Micro structure and crystal phases of praseodymium in zinc oxide varistor ceramics', J. Amer. Ceram. Soc., Vol. 79, p. 2379, 1996 https://doi.org/10.1111/j.1151-2916.1996.tb08986.x
  8. C.-W. Nahm, 'The nonlinear properties and stability of $ZnO-Pr_6O_{11}-CoO-Cr_2O_3-Er_2O_3$ ceramic varistors', Mater. Lett., Vol. 47, No. 3, p. 182. 2001 https://doi.org/10.1016/S0167-577X(00)00262-7
  9. C.-W. Nahm, 'Nonlinear electrical properties and DC accelerated aging characteristics of $ZnO-Pr_6O_{11}-CoO-Cr_2O_3-Dy_2O_3-based$ varistors', Solid State Commun., Vol. 127, No. 5, p. 389, 2003 https://doi.org/10.1016/S0038-1098(03)00436-8
  10. C.-W. Nahm, 'Microstructure and nonlinear electrical properties of $ZnO-Pr_6O_{11}-CoO- Cr_2O_3-La_2O_3-based$ varistors', J. Mater. Sci. Lett., Vol. 40, No. 23, p. 6307, 2005 https://doi.org/10.1007/s10853-005-4567-y
  11. C.-W. Nahm, 'The effect of sintering temperature on electrical properties and accelerated aging behavior of PCCL-doped ZnO varistors', Materials Science and Engineering B, Vol. 136, No. 2-3, p. 134, 2007 https://doi.org/10.1016/j.mseb.2006.09.010
  12. C.-W. Nahm, 'Effect of sintering temperature on nonlinear electrical properties and stability against DC accelerated aging stress of (CoO, $Cr_2O_3$, $La_2O_3)-doped$ $ZnO-Pr_6O_{11}-based$ varistors', Mater. Lett., Vol. 60, No. 28, p. 3311, 2006 https://doi.org/10.1016/j.matlet.2006.05.079
  13. 남춘우, 박종아, 유대훈, 'Zn-Pr-Co-Cr-Er 산 화물계 바리스터의 써지 스트레스에 대한 전기적 안정성에 미치는 소결온도의 영향', 전기전자재료학회논문지, 17권, 11호, p. 1167, 2004.
  14. 남춘우, 박종아, 유대훈, 'Zn-Pr-Co-Cr-Y 산화물계 바리스터의 써지 스트레스에 대한 전기적 안정성에 소결시간의 영향', 전기전자재료학회논문지, 18권, 7호, p. 615, 2005 https://doi.org/10.4313/JKEM.2005.18.7.615
  15. J. C. Wurst and J. A. Nelson, 'Lineal intercept technique for measuring grain size in two-phase polycrystalline ceramics', J. Amer. Ceram. Soc., Vol. 55, No. 97-12, p. 109, 1972 https://doi.org/10.1111/j.1151-2916.1972.tb11224.x
  16. International Electrothechnical Committee, 'IEC 61000-4-series, Electromagnetic Compatibility', IEC publisher, 1992