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J. Korean Ceram. Soc. > Volume 47(6); 2010 > Article
Journal of the Korean Ceramic Society 2010;47(6): 529.
doi: https://doi.org/10.4191/kcers.2010.47.6.529
Frit 함량이 다공질 Frit-Bonded 알루미나 세라믹스의 미세조직과 꺾임강도에 미치는 영향
임광영, 김영욱, 송인혁1, 김해두1, 배지수2
서울시립대학교 신소재공학과 기능성세라믹스연구실
1재료연구소(KIMS)
2(주)와이제이씨
Effect of Frit Content on Microstructure and Flexural Strength of Porous Frit-Bonded Al2O3 Ceramics
Kwang-Young Lim, Young-Wook Kim, In-Hyuck Song1, Hai-Doo Kim1, Ji-Soo Bae2
Functional Ceramics Laboratory, Department of Materials Science and Engineering, The University of Seoul
1Powder Materials Research Division, Korea Institute of Materials Science
2YJC Co., Ltd.
ABSTRACT
Porous frit-bonded alumina ceramics were fabricated using alumina and frit as raw materials. The effects of frit content and sintering temperature on microstructure, porosity, and flexural strength were investigated at low temperature of $750{sim}850^{circ}C$. Increased addition of frit content or higher sintering temperature resulted in improved flexural strength of porous frit-bonded alumina ceramics. It was possible to produce frit-bonded alumina ceramics with porosities ranging from 35% to 40%. A maximum strength of 52MPa was obtained at a porosity of ~38% when 90 wt% alumina and 10 wt% frit powders were used.
Key words: $Al_2O_3$, Porous ceramics, Frit, Processing, Properties
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