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J. Korean Ceram. Soc. > Volume 26(4); 1989 > Article
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
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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