Activation energy for mullitization of alpha-alumina silica microcomposite particles

被引：13

作者：

Sacks, MD

Wang, KY

Scheiffele, GW

Bozkurt, N

机构：

[1] Ceramic Division, Dept. of Mat. Sci. and Engineering, University of Florida, Gainesville

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1996年 / 79卷 / 02期

关键词：

D O I：

10.1111/j.1151-2916.1996.tb08173.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The formation of mullite in silica-coated cy-alumina microcomposite powders was investigated using differential thermal analysis. An apparent activation energy of 1042 +/- 32 kJ/mol was determined for the mullitization reaction. This result suggests that mullite formation in microcomposite powders occurs by the same mechanism as in diphasic gels.

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页码：571 / 573

页数：3

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