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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

钛酸铝-莫来石陶瓷热稳定性的研究

章俞之1; 周健儿2; 快素兰1; 胡行方1   

  1. 1. 中国科学院上海硅酸盐研究所; 上海 200050; 2. 景德镇陶瓷学院; 景德镇 333001
  • 收稿日期:1999-06-03 修回日期:1999-07-12 出版日期:2000-06-20 网络出版日期:2000-06-20

Stability of Aluminium Titanate-Mullite Ceramic

ZHANG Yu-Zhi1; ZHOU Jian-Er2; KUAI Su-Lan1; HU Xing-Fang1   

  1. 1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. JingdezhenCeramic Institute; Jingdezhen 333001; China
  • Received:1999-06-03 Revised:1999-07-12 Published:2000-06-20 Online:2000-06-20

PDF (PC)

1033

被引次数

11

摘要： 本文运用XRD、RPD、SEM、EDS等手段详细研究了钛酸铝-莫来石复合材料中莫来石相对钛酸铝热稳定性的影响．实验发现：复合材料的合成温度影响莫来石对钛酸铝陶瓷热分解的抑制作用，而且莫来石的加入量和种类以及热处理时间，也是影响莫来石抑制钛酸铝分解效果的因素．莫来石抑制钛酸铝分解机理的研究表明：莫来石与钛酸铝生成的固溶体以及莫来石晶粒对钛酸铝晶粒具有压制作用，从而有效地提高了钛酸铝的稳定性．

关键词: 钛酸铝, 莫来石, 复合材料, 热稳定, 热膨胀系数

Abstract: The stabilizing effect of mullite on aluminium titanate was studied in detail through XRD, RPD,
SEM and EDS. The sintering temperature was found to affect the stability of aluminium titanate. The content and the variety of mullite, as well
as annealing time, have influence on the composites. In addition, the mechanism of mullite suppressing the thermal decomposition of aluminium
titanate was discussed. Solid solution and mullite grain can suppress the grain of aluminium titanate, which results in the improvement on the
stability of aluminium titanate.

Key words: aluminium titanate, mullite, composite, thermal stability, thermal expansion coefficient

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