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J. Korean Ceram. Soc. > Volume 42(11); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(11): 753.
doi: https://doi.org/10.4191/kcers.2005.42.11.753
플라이 애쉬로부터 뮬라이트 휘스커의 합성
김성환, 방희곤1, 박상엽2
강릉대학교 파인세라믹 기술혁신센터
1강릉대학교 세라믹공학과
2강릉대학교 세라믹공학과, 강릉대학교 파인세라믹 기술혁신센터
Synthesis of Mullite Whisker from Fly Ash
Sung-Hwan Kim, Hee-Gon Bang1, Sang-Yeup Park2
Technology Innovation Center for Fine Ceramics at Kangnung National University
1Department of Ceramics Engineering, Kangnung Nat'l University
2Department of Ceramics Engineering, Kangnung Nat'l University, Technology Innovation Center for Fine Ceramics at Kangnung National University
ABSTRACT
In this study, we attempted to recycle the fly ash as a mullite whisker with addition of $Al_{2}O_{3}$ to obtain the high yield of mullite whisker. During the reaction process, mullite whisker was formed with the reaction of amorphous $alpha$-Cristobalite and Anorthite above $1350^{circ}C$. With increasing the heat treatment temperature and time, the mean length and aspect ratio of mullite whiskers was gradually increased.
Key words: Fly ash, Mullite whisker, Alumina, Aspect ratio
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