ZPCCL계 세라믹스의 바리스터 특성

남춘우; Choon-Woo Nahm

Korean Journal of Materials Research, Vol.16, No.7, 416-421, July, 2006

DOI10.3740/MRSK.2006.16.7.416 Export Citation

ZPCCL계 세라믹스의 바리스터 특성

Varistor Properties of ZPCCL-based Ceramics

남춘우^†

동의대학교 전기공학과

Choon-Woo Nahm^†

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

E-mail:

The varistor properties of ZPCCL-based ceramics were investigated at different contents in the range of mol%. As content increased, the ceramic density greatly increased in the range of and the varistor voltage greatly decreased in the range of V. The varistor with 0.5 mol% exhibited good nonlinearity, in which the nonlinear exponent is 81.6 and the leakage current is 0.2 . Furthermore, the varistors exhibited the high electrical stability, with , and for DC accelerated aging stress condition of 0.95 h.

Keywords:La2O3;Stability;DC accelerated aging stress;ZPCCL-based ceramics

[References]

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

[3] Lee YS, Tseng TY, J. Amer. Cerarn. Soc., 75, 1636 (1992)

[4] Mukae K, Amer. Ceram. Soc. Bull., 66, 1329 (1987)

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

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

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

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

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

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

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

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

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

[14] Hng HH, Knowles KM, J. Mater. Sci., 37(6), 1143 (2002)

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

[16] Fan J, Freer R, J. Amer. Cearm. Soc., 77, 2663 (1994)