Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Effects of Intergranular Layer on the Nonohmic Characteristics of ZnO-Bi2O3 Ceramics

ZnO-Bi2O3 세라믹스의 비오옴 특성에 대한 Intergranular Layer의 영향

  • 김경남 (강원대학교 재료공학과) ;
  • 한상목 (강원대학교 재료공학과)
  • Published : 1989.04.01
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Abstract

The microstructure and electrical properties of ZnO-Bi2O3 system with Bi2O3(0.5~5mol%) content have been investigated in relatin to sintering temperature and atmosphere. The grain size of ZnO increases sharply with Bi2O3(0.5~5mol%) content, but over 0.5mol% Bi2O3 increased less rapidly when sintered at 120$0^{\circ}C$. Electrical characteristics varied with sintering atmosphere and air-sintered conditions showed comparatively lower nonlinear exponents than the double-crucible conditions. Calculated barrier voltage was about 1.7V.

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References

  1. Jpn. J. Appl. Phys. v.10 no.6 Nonohmic Properties of ZnO ceramics M.Matsuoka
  2. CMC Tech no.13 ZnO系 ハリスタ村料とその應用 一ノ瀨昇
  3. Adv. Ceram. v.1 Progress in Research and Development of Zinc Oxide Varistor M.Matsuoka
  4. J. Appl. Phys. v.46 no.3 The Physics of Metal Oxide Varistors L.M.Levinson;H.R.Philipp
  5. J. Kor. Ceram. Soc. v.25 no.6 ZnO-Bi₂O₃계 세라믹스의 미세구조 및 전기적 특성 이승주;한상목
  6. J. Appl. Phys. v.51 no.8 Sintering and Varistor Characteristics of ZnO-Bi₂O₃Ceramics J.Wong
  7. J. Am. Ceram. Soc. v.51 no.9 Sintering of ZnO: I, Densification and Grain Growth T.K.Gupta;R.L.Coble
  8. J. Appl. Phys. v.46 no.4 Microstructure and Phase Transformation in Highly Nonohmic Metal Oxide Varistor Ceramics J.Wong
  9. J. Am. Ceram. Soc. v.56 no.7 Electrical Properties of ZnO-Bi₂O₃Ceramics W.G.Morris
  10. Introduction to ceramics(2nd ed.) W.D.Kingery
  11. Ceram. Bull. v.65 no.4 Zinc Oxide Varistors L.M.Levinson;H.R.Philipp
  12. J. Appl. Phys. v.48 no.10 The Physics of Zinc Oxide Varistor P.R.Emtage
  13. J. Appl. Phys. v.47 no.11 Barrier Voltage Measurement in Metal Oxide Varistors J.Wong