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

  • 제16권10호
  • /
  • Pages.897-901
  • /
  • 2003
  • /
  • 1226-7945(pISSN)
  • /
  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지
DOI QR코드

DOI QR Code

ZnO-Pr6O11-CoO-Cr2O3-Dy2O3계 세라믹스의 미세구조 및 바리스터 특성

Microstructure and Varistor Characteristics of ZnO-Pr6O11-CoO-Cr2O3-Dy2O3-Based Varistors

  • 남춘우 (동의대학교 전기공학과) ;
  • 박종아 (동의대학교 전기공학과) ;
  • 김명준 (동의대학교 전기공학과)
  • 발행 : 2003.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The microstructure and varistor characteristics of ZnO-Pr$_{6}$O$_{11}$-CoO-Cr$_2$O$_3$-Dy$_2$O$_3$(ZPCCD)-based ceramics were investigated with Dy$_2$O$_3$ content in the range of 0.0∼2.0 mol%. As Dy$_2$O$_3$ content is increased, the average grain size was decreased in the range of 18.6∼4.7 $\mu$m and the density was decreased in the range of 5.53∼4.34 g/cm$^3$. While, the varistor voltage was increased in the range of 39.4∼436.6 V/mm and the nonlinear exponent was in the range of 4.5-66.6 with increasing Dy$_2$O$_3$ content. The addition of Dy$_2$O$_3$ highly enhanced the nonlinear properties of varistors, compared with the ceramics without Dy$_2$O$_3$ Particularly, the ceramics with Dy$_2$O$_3$ content of 0.5 mol% exhibited the highest nonlinearity, in which the nonlinear exponent is 66.6 and the leakage current is 1.2 $\mu$A.A.A.

키워드

참고문헌

  1. 半導休 セラミクスと その應用 こュ-ヶラスシ-リズ 編集委員會
  2. 電氣學會技術報告, 第474號 酸化亞鉛避雷器の特性と評價試驗法 電氣學會
  3. 電子セラミクス -ノ瀨 昇
  4. J. Appl. Phys. v.70 The effect of liquid-phase sintering on the properties of $Pr_{6}O_{11}$- based ZnO varistors A.B.Alles;V.L.Burdick https://doi.org/10.1063/1.349812
  5. J. Amer. Ceram. Soc. v.76 no.8 Compositional effects on the liquid-phase sintering of praseodymium oxides-based zinc oxides varistors A.B.Alles;R.Puskas;G.Callahan;V.L.Burdick https://doi.org/10.1111/j.1151-2916.1993.tb08339.x
  6. J. Amer. Ceram. Soc. v.79 Micro structure and crystal phases of praseodymium in zinc oxide varistor ceramics Y.S.Lee;K.S.Liao;T.Y.Tseng https://doi.org/10.1111/j.1151-2916.1996.tb08986.x
  7. Mater. Lett. v.47 no.3 The nonlinear properties and stability of $ZnO-Pr_{6}O_{11}-CoO-Cr_{2}O_{3}-Er_{2}O_{3}$ ceramic varistors C.W.Nahm https://doi.org/10.1016/S0167-577X(00)00262-7
  8. J. Mater. Sci. v.35 Microstucture, electrical properties, degradation behavior of praseodymium-based zinc oxide varistors doped with $Y_{2}O_{3}$ C.W.Nahm;C.H.Park https://doi.org/10.1023/A:1004749214640
  9. 전기전자재료학회논문지 v.15 no.3 $Pr_{6}O_{11}$계 ZnO 바리스터의 DC 가속열화 스트레스에 따른 전기적, 유전적 거동에 미치는 소결온도의 영향 남춘우;정영철;김향숙 https://doi.org/10.4313/JKEM.2002.15.3.244
  10. 전기전자재료학회논문지 v.15 no.8 $ZnO-Pr_{6}O_{11}-CoO-Cr_{2}O_{3}-Y_{2}O_{3}$계 바리스터 세라믹스의 전기적특성 남춘우;김향숙
  11. 전기전자재료학회논문지 v.15 no.9 ZPCCY계 바리스터 세라믹스의 DC 가속열화 특성에 미치는 냉각속도의 영향 남춘우;김향숙 https://doi.org/10.4313/JKEM.2002.15.9.776
  12. J. Mater. Sci. Lett. v.21 no.3 $ZnO-Pr_{6}O_{11}-CoO-Cr_{2}O_{3}-Er_{2}O_{3}$-based ceramic varistors with high stability of nonlinear properties C.W.Nahm https://doi.org/10.1023/A:1014752523252
  13. Mater. Lett. v.56 no.4 Effect of $Pr_{6}O_{11}/CoO$ mole ratio on nonlinear properties and DC accelerated aging characteristics of $ZnO-Pr_{6}O_{11}-CoO-Dy_{2}O_{3}$ based varistors C.W.Nahm;H.S.Kim https://doi.org/10.1016/S0167-577X(02)00490-1
  14. Mater. Electron. v.13 no.2 Effect of sintering temperature on electrical properties and stability of $Pr_{6}O_{11}$-based ZnO varistors C.W.Nahm;B.C.Shin https://doi.org/10.1023/A:1013610408895
  15. Mater. Lett. v.57 no.9 Influence of cooling rate on stability of nonlinear properties of $ZnO-Pr_{6}O_{11}$-based varistor ceramics C.W.Nahm;H.S.Kim https://doi.org/10.1016/S0167-577X(02)01020-0
  16. Mater. Lett. v.57 no.7 Highly stable electrical properties of $ZnO-Pr_{6}O_{11}-CoO-Cr_{2}O_{3}-Y_{2}O_{3}$-based varistor cearmics C.W.Nahm;B.C.Shin https://doi.org/10.1016/S0167-577X(02)00980-1
  17. Mater. Lett. v.57 no.7 Microstructure and electrical properties of $Y_{2}O_{3}$ doped $ZnO-Pr_{6}O_{11}$-based varistor C.W.Nahm https://doi.org/10.1016/S0167-577X(02)00979-5
  18. 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