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http://dx.doi.org/10.4191/KCERS.2005.42.11.753

Synthesis of Mullite Whisker from Fly Ash  

Kim, Sung-Hwan (Technology Innovation Center for Fine Ceramics at Kangnung National University)
Bang, Hee-Gon (Department of Ceramics Engineering, Kangnung Nat'l University)
Park, Sang-Yeup (Department of Ceramics Engineering, Kangnung Nat'l University, Technology Innovation Center for Fine Ceramics at Kangnung National University)
Publication Information
Journal of the Korean Ceramic Society / v.42, no.11, 2005 , pp. 753-757 More about this Journal
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.
Keywords
Fly ash, Mullite whisker; Alumina; Aspect ratio;
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