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J. Korean Ceram. Soc. > Volume 37(6); 2000 > Article
Journal of the Korean Ceramic Society 2000;37(6): 545.
저온 소성용 유리-알루미나 복합체에서 유리 입자크기에 따른 소결거동
박덕훈, 김봉철, 김정주, 박이순1
경북대학교 무기재료공학과
1경북대학교 고분자공학과
Effects of Glass Particle Size on Sintering Behaviors of the Glass-Alumina Composites for Low Firing Temperature
Sintering behaviors of the glass-alumina composites for low firing temperature were investigated as a function of the particle size of glass frit. The system of glass frit was Pb-B-Si-Al-O. The median particle sizes of the glass frits were 2.72$mutextrm{m}$, 2.67$mutextrm{m}$ and 1.33$mutextrm{m}$, which were prepared with changing ball-milling times as 24 h, 48 h and 96 h. The glass-alumina composites showed maximum density at certain temperature, and further heating led to dedensification behaviors, so called over-firing. The sintering temperature, which showed maximum density, raised from 425$^{circ}C$ to 475$^{circ}C$ with increase of particle size of glass frit from 1.33$mutextrm{m}$ to 2.72$mutextrm{m}$. Especially, the over firing behaviors, which were occurred at high sintering temperatures, were greatly increased with decrease of particle size of glass frit.
Key words: Particle size, Maximum density, Over-firing
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