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Simulations of fine ceramics cascade synthesized by the self-propagating high-temperature synthesis method

Published online by Cambridge University Press:  31 January 2011

Bai-Wai Chen  and
Chien-Chong Chen
Bai-Wai Chen
Affiliation:
Department of Chemical Engineering, National Chung Cheng University, Chia-Yi 621, Taiwan
Chien-Chong Chen*
Affiliation:
Department of Chemical Engineering, National Chung Cheng University, Chia-Yi 621, Taiwan
*
a) Author to whom correspondence should be addressed.
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Abstract

Due to the convective and radiant heat losses, there exists a maximal converted length of a dense pellet synthesized by the self-propagating high-temperature synthesis (SHS) method. In this paper, we numerically investigate the possibility to increase that maximal converted length by cascading two reactant pellets in series, where an interface is naturally and artificially introduced. First, the impacts of both the bulk and interfacial parameters on the SHS process are estimated. The maximal converted length for a single pellet is computed. Next, by varying the interfacial parameters, it is found that more than 10% of extra converted length is obtained by the proposed cascade arrangement. Effects of the bulk parameters on the same purpose are also addressed.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 5 , May 1998 , pp. 1291 - 1299
Copyright
Copyright © Materials Research Society 1998

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