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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Varistor Properties of Sn2O3- Doped ZnO-Pr6O11-CoO-Doped -Based Ceramics

Sn2O3가 첨가된 ZnO-Pr6O11-CoO계 세라믹스의 바리스터 특성

  • 남춘우 (동의대학교 전기공학과)
  • Published : 2003.01.01
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Abstract

The varistor properties of ZnO-Pr$_{6}$O$_{11}$-CoO-based ceramics doped with Sm$_2$O$_3$were investigated in the addition range of 0.0~2.0 mol% Sm$_2$O$_3$at sintering temperature of 130$0^{\circ}C$ and 135$0^{\circ}C$. As Sm$_2$O$_3$ content is increased, the breakdown voltage was increased in the range of 348.9~521.8 V/mm for ceramics sintered at 130$0^{\circ}C$ and 8.5~381.3 V/mm for ceramics sintered at 135$0^{\circ}C$. On the whole, the increase of sintering temperature led to the low nonlinearity regardless of Sm$_2$O$_3$content. ZnO-Pr$_{6}$O$_{11}$-CoO-based ceramics doped with 1.0 mol% at each sintering temperature exhibited the most superior varistor properties, with the nonlinear exponent of 42.1 at 130$0^{\circ}C$, 36.8 at 135$0^{\circ}C$ and the leakage current of 9.2 $\mu$A at 130$0^{\circ}C$, 11.7 $\mu$A at 135$0^{\circ}C$.EX>.EX>.

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References

  1. 半導體ラミクスとその應用 ニュ ヶラスシ リズ 編集委員會
  2. 電氣學會技術報告 no.474 酸化亞鉛避電氣の特性と評價 試驗法 電氣學會
  3. Jpn. J. Appl. Phys. v.10 Nonlinear Properties of Zinc Oxide Ceramics M. Matsuoka https://doi.org/10.1143/JJAP.10.736
  4. 전기전자재료학회논문지 v.12 no.11 ZnO-$Pr_6O_{11}-CoO-CeO_2$계 세라믹스의 미세구조 및 바리스터 특성 남춘우;박춘현;윤한수
  5. J. Eur. Ceram. Soc. v.21 The electrical properties and d.c. degradation characteristics of $Dy_2O_3$ doped $Pr_6O_{11}$ based ZnO varistors C. W. Nahm
  6. J. Mater. Sci. v.36 no.7 Effect of $Er_2O_3$ addition on the microstructure, electrical properties, and stability of $Pr_6O_{11}$ based ZnO ceramic varistors C. W. Nahm;C. H. Park https://doi.org/10.1023/A:1017552020433
  7. 전기전자재료학회논문지 v.14 no.5 Zn-Pr-Co-Cr-Er계 바리스터의 전기적 성질 남춘우;류정선 https://doi.org/10.1023/A:1017552020433
  8. 전기전자재료학회논문지 v.14 no.10 $Pr_6O_{11}$계 ZnO 바리스터의 가속열화 특성 남춘우;류정선;김향숙;정영철
  9. Mater. Lett. v.43 no.5 The nonlinear properties and stability of ZnO-$Pr_6O_{11}-CoO-Cr_2O_3-Er_2O_3$ ceramic varistors C. W. Nahm
  10. J. Mater. Sci.: Mater. Electron. v.13 no.2 Effect of sintering temperature on electrical properties and stability of $Pr_6O_{11}$-based ZnO varistors C.-W. Nahm;B.-C. Shin https://doi.org/10.1023/A:1013610408895
  11. J. Mater. Sci. Lett. v.21 no.3 ZnO-$Pr_6O_{11}-CoO-Cr_2O_3-Er_2O_3$ based-ceramic varistors with high stability of nonlinear properties C. W. Nahm https://doi.org/10.1023/A:1014752523252
  12. 전기전자재료학회논문지 v.15 no.8 ZnO-$Pr_6O_11-CoO-Cr_2O_3-Y_2O_3$계 세라믹스의 전기적 특성 남춘우;김향숙 https://doi.org/10.1023/A:1014752523252
  13. J. Amer. Ceram. Soc. v.55 no.97;12 Lineal intercept technique for measuring grain size in two phase polycrystalline ceramics J. C. Wurst;J. A. Nelson https://doi.org/10.1111/j.1151-2916.1972.tb11224.x
  14. J. Appl. Phys. v.46 The physics of metal oxide varistors L. M. Levinson;H. R. Philipp https://doi.org/10.1063/1.321701
  15. 전기전자재료학회논문지 v.13 no.3 $Nd_2O_3$가 첨가된 $Pr_6O_{11}$계 ZnO 바리스터의 미세구조 및 전기적 성질 남춘우;박춘현;윤한수 https://doi.org/10.1063/1.321701