Characterisation of monophasic and diphasic mullite precursors by solid state reaction study

被引：0
|
作者：
Chakraborty, AK [1 ]
机构：
[1] Cent Glass & Ceram Res Inst, Kolkata 700032, W Bengal, India
来源：
BRITISH CERAMIC TRANSACTIONS | 2004年 / 103卷 / 01期
关键词：
alumina-silica gels; calcium carbonate; gehlenite; mullite precursors; XRD;
D O I：
暂无
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 characterisation by various spectroscopic techniques of amorphous mullite precursors formed front monophasic (SH) and diphasic (DG) gels is reviewed. In a new approach, both types of precursor have been heated with CaCO3 and the crystalline phases formed during solid state reaction monitored using an X-ray powder diffraction technique. The formation of a calcium aluminosilicate phase (gehlenite) rather than calcium aluminate suggests that both precursors consist of an amorphous aluminosilicate phase of composition close to that of 3:2 mullite.
引用
收藏
页码：33 / 36
页数：4
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