Mullite formation by endothermic reaction of alpha-alumina/silica microcomposite particles

被引：42

作者：

Wang, KY

Sacks, MD

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 / 01期

关键词：

DIPHASIC ALUMINOSILICATE GELS; CRYSTALLIZATION; PHASE; XEROGELS; SIO2-AL2O3; TRANSFORMATION; NUCLEATION; SPINEL;

D O I：

10.1111/j.1151-2916.1996.tb07874.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 was investigated using microcomposite powders which consist of alpha-alumina cores and amorphous silica coatings, Differential thermal analysis and X-ray diffraction showed that the mullitization reaction,ras endothermic, In contrast, mullite forms exothermically in samples prepared by sol-gel processing, The results are shown to be consistent with available thermodynamic data for mullite formation from different alumina and silica phases.

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页码：12 / 16

页数：5

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