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J. Korean Ceram. Soc. > Volume 43(6); 2006 > Article
Journal of the Korean Ceramic Society 2006;43(6): 344.
doi: https://doi.org/10.4191/kcers.2006.43.6.344
플라이 애쉬를 이용한 다공성 코디어라이트의 합성 및 특성
김성진, 방희곤, 박상엽
강릉대학교 세라믹공학과
Properties and Synthesis of Porous Cordierite from Fly Ash
Sung-Jin Kim, Hee-Gon Bang, Sang-Yeup Park
Department of Ceramics Engineering, Kangnung National University
Porous cordierite was synthesized by the mechano-chemical processing using fly ash. The phase evolution of cordierite was investigated as a function of processing variables such as milling time and sintering temperature. In this study, the phase transition path of cordierite from fly ash was followed by sapprine/spinel ${to}$ mullite/spinel ${to}{alpha}$-cordierite. Porous cordierite fabricated after 32 h of milling time and sintering at $1150^{circ}C$ showed relatively low thermal expansion coefficient ($2.5{times}10^{-6}/^{circ}C;(25{sim}1000^{circ}C$)) and high porosity (75%).
Key words: Cordierite, Fly ash, Phase change behavior
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