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J. Korean Ceram. Soc. > Volume 45(1); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(1): 65.
doi: https://doi.org/10.4191/kcers.2008.45.1.065
다공질 지르코니아 세라믹스의 기공율 제어
채수호, 엄정혜, 김영욱, 송인혁1, 김해두1, 배지수2, 나상문2, 김승일2
서울시립대학교 신소재공학과
Porosity Control of Porous Zirconia Ceramics
Su-Ho Chae, Jung-Hye Eom, Young-Wook Kim, In-Hyuek Song1, Hai-Doo Kim1, Ji-Soo Bae2, Sang-Moon Na2, Seung-Il Kim2
Department of Materials Science and Engineering, the University of Seoul
1Powder Materials Research Division, Korea Institute of Materials Science
2Young-Jin Ceramics Co., Ltd.
A simple pressing process using zirconia and microbead for fabricating porous zirconia ceramics is demonstrated. Effects of microbead content and sintering temperature on microstructure, porosity, compressive and flexural strengths were investigated in the processing of porous zirconia ceramics using microbead as a pore former. By controlling the microbead content and the sintering temperature, it was possible to produce porous zirconia ceramics with porosities ranging from 43% to 70%. Typical compressive and flexural strength values at ${sim}50%$ porosity were ${sim}150;MPa$ and ${sim}35;MPa$, respectively.
Key words: Porous ceramics, Zirconia, Processing, Porosity
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