New data on the thermal analysis of diphasic mullite gel

被引：6

作者：

Chakravortty, AK

机构：

[1] Central Glass and Ceramic Research Institute

来源：

JOURNAL OF THERMAL ANALYSIS | 1996年 / 46卷 / 05期

关键词：

diphasic mullite gel; Si-Al spinel; mullite;

D O I：

10.1007/BF01979254

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A diphasic mullite gel has been synthesized by using Ludox and Al(NO3)(3) . 9H(2)O in ammoniacal solution. Both DTA and DDTA studies have been performed with a sensitive differential thermal analyzer system. Besides usual exotherm due to mullite formation, a pronounced exotherm between 800-1300 degrees C has been noted. Considering previous XRD data, it is explained as due to formation of Si-Al spinel phase, which is subsequently transformed exothermally at similar to 1320 degrees C to mullite.

引用

页码：1413 / 1419

页数：7

共 22 条

[1] FORMATION OF SILICON-ALUMINUM SPINEL [J].