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Journal of the Korean Ceramic Society 1989;26(4): 487. |
| ZnO-Bi2O3 세라믹스의 비오옴 특성에 대한 Intergranular Layer의 영향 |
| 김경남, 한상목 |
| 강원대학교 재료공학과 |
| The Effects of Intergranular Layer on the Nonohmic Characteristics of ZnO-Bi2O3 Ceramics |
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| ABSTRACT |
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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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