| 莫来石抑制钛酸铝材料热分解的机理研究 |
| |
| 引用本文： | 周健儿,章俞之,马光华,顾幸勇. 莫来石抑制钛酸铝材料热分解的机理研究[J]. 陶瓷学报, 2000, 21(3): 125-130 |
| |
| 作者姓名： | 周健儿 章俞之 马光华 顾幸勇 |
| |
| 作者单位： | 1. 景德镇陶瓷学院
2. 中科院上海硅酸盐研究所 |
| |
| 基金项目： | 江西省跨世纪学术技术带头人培养计划项目资助 |
| |
| 摘 要： | 运用扫描电镜（SEM）、X-射线衍射仪（XRD）、能谱仪（EDS）等现代测试手段，从材质的显微结构、晶界晶相组成分析入手，对莫来石抑制钛酸铝热分解的作用机理作了较为详细的分析研究，探明莫来石抑制钛酸铝热分解的作用机理是：（1）在高温下Si^4 进入钛酸铝晶格或间隙中，形成固溶化的钛酸铝晶体，稳定了晶格；（2）因莫来石与钛酸铝间的热膨胀差异，造成较大的压应力（37.65MPa），致使固溶化的钛酸铝晶体更趋稳定。
|
| 关 键 词： | 莫来石 钛酸铝 热分解 稳定化 SEM XRD |
| 文章编号： | 1000-2278(2000)03-0125-06 |
| 修稿时间： | 2000-07-03 |
STUDY ON MACHENISM OF THE STABHIZING EFFECT OF MULLITE ON ALUMINUM |
| |
| Zhou Jianer,Zhang Yuzhi,Ma Guanhua,Gu Xingyou. STUDY ON MACHENISM OF THE STABHIZING EFFECT OF MULLITE ON ALUMINUM[J]. Journal of Ceramics, 2000, 21(3): 125-130 |
| |
| Authors: | Zhou Jianer Zhang Yuzhi Ma Guanhua Gu Xingyou |
| |
| Affiliation: | Zhou Jianer,Ma Guanhua,Gu Xingyou;(Jingdezhen Ceramic Institute);Zhang Yuzhi;(Shanghai Institute of Ceramic, Chinese Academy Science) |
| |
| Abstract: | By SEM, XRD and EDS and son.Methods,the stabilizing effect of mullite on aluminum titanate has been studied in detail by means of analysing the microstructure,compositions of grain boundary and crystal phase.It has been found that the effect machenism of mullite on stability of aluminum titanate is.(1) Si 4 inter the lattice or its interstitial position of aluminum titanate at high temperature to form solid solution crystal and stabilizing the lattice.(2)The difference of thermal expansion between mullite and aluminum titanate, the larger pressure (37.65MPa) has been formed that solidsolutional aluminum titanate to become more stable. |
| |
| Keywords: | mullite aluminum fitanate thermal decomposition stabilize |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
