New data on thermal effects of kaolinite in the high temperature region

被引：26

作者：

Chakraborty, AK ^{[1
]}

机构：

[1] Cent Glass & Ceram Res Inst, Kolkata 700032, W Bengal, India

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2003年 / 71卷 / 03期

关键词：

heating rate; kaolinite; mullitization; packing density;

D O I：

10.1023/A:1023318008031

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

DTA study of an Indian Kaolinite has been performed by varying packing density and rate of heating. Both these two parameters influence the intensities of both endothermic and exothermic peaks related to the dehydration, dehydroxylation and then crystallizations of Al-Si spinel, mullite and cristobalite phases. Significantly, the study reveals that mullitization takes place by two separate reactions as indicated by two exotherms in the 1200-1400degreesC range of DTA trace.

引用

页码：799 / 808

页数：10

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