Zn-Pr-Co-Cr-Tb계 바리스터의 전기적 특성 및 안정성에 소결온도가 미치는 영향

남춘우; Choon-Woo Nahm

Korean Journal of Materials Research, Vol.17, No.6, 298-302, June, 2007

DOI10.3740/MRSK.2007.17.6.298 Export Citation

Zn-Pr-Co-Cr-Tb계 바리스터의 전기적 특성 및 안정성에 소결온도가 미치는 영향

Effect of Sintering Temperature on Electrical Properties and Stability of Zn-Pr-Co-Cr-Tb-Based Varistors

남춘우^†

동의대학교 전기공학과

Choon-Woo Nahm^†

Department of Electronic Engineering, Dongeui University, Busanjin-Gu, Busan 614-714, Korea

E-mail:

The electrical properties and its stability of Zn-Pr-Co-Cr-Tb-based varistors were investigated for different sintering temperatures. As the sintering temperatures increased, the varistor voltage decreased in the range of V/mm, the nonlinear coefficient decreased in the range of , and the leakage current was in the range of . The stability of electrical characteristics increased with the increase of sintering temperature. The varistors sintered at marked the high electrical stability, with , and for DC accelerated aging stress state of .

Keywords:sintering temperature;electrical properties;stability;DC accelerated aging stress;varistors

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[1] Levinson LM, Philipp HR, Am. Ceram. Soc. Bull., 65, 639 (1986)

[2] Gupta TK, J. Am. Ceram. Soc., 73, 1817 (1990)

[3] Mukae K, Tsuda K, Shiga S, IEEE Trans. Pow. Deliv., 3, 591 (1988)

[4] Shichimiya S, Yamaguchi M, Furuse N, Kobayashi M, Ishibe S, IEEE Trans. Pow. Deliv., 13, 465 (1998)

[5] Mukae K, Am. Ceram. Soc. Bull., 66, 1329 (1987)

[6] Alles AB, Burdick VL, J. Appl, Phys., 70, 6883 (1991)

[7] Alles AB, Puskas R, Callahan G, Burdick VL, J. Amer. Ceram. Soc., 76, 2098 (1993)

[8] Lee YS, Liao KS, Tseng TY, J. Amer. Ceram. Soc., 79, 2379 (1996)

[9] Nahm CW, Mater. Lett., 47, 182 (2001)

[10] Nahm CW, J. Mater. Sci.:Mater. Electron., 15, 29 (2004)

[11] Nahm CW, Mater. Lett., 57, 1317 (2003)

[12] Nahm CW, Shin BC, Min BH, Mater. Chem. Phys., 82(1), 157 (2003)

[13] Nahm CW, Mater. Lett., 58, 2252 (2004)

[14] Nahm CW, Park JA, Shin BC, Kim IS, Ceram. Internation., 30, 1009 (2005)

[15] Nahm CW, Korean J. Mater. Res., 16(8), 466 (2006)

[16] Wurst JC, Nelson JA, J. Am. Ceram. Soc., 97, 109 (1972)

[17] Fan J, Freer R, J. Am. Cearm. Soc., 77, 2663 (1994)