论文:具有异向生长的钛酸铝陶瓷粉_备及其凝胶注模方法探究

具有异向生长的钛酸铝陶瓷粉_备及其凝胶注模方法探究

院 （系） 材料科学与工程学院
专 业 材料科学与工程
届 别 2012届


摘 要
钛酸铝陶瓷是一种低膨胀、耐高温新型陶瓷材料。本文采用机械激活法，制备具有异向生长的钛酸铝陶瓷粉体。同时对其凝胶注模工艺进行探究，旨在获得适合钛酸铝陶瓷粉体注模工艺的配比并最终制备出不易分解，微裂纹少的钛酸铝织构陶瓷。研究结果表明以锐钛矿型TiO2为原料制备Al2TiO5粉体纯度较高，明胶体系注模较丙烯酸体系注模更为简易。
关键词：钛酸铝；机械激活；凝胶注模


Abstract
Aluminum titanate ceramic is a kind of low-e*pansion, high temperature new ceramic materials. The article adopt the mechanical activation method to manufacturing titanate aluminum ceramic powder which has different growth directions. At the same time this article e*plore the craft of Gel-casting aims to get the best way to produce aluminum titanate ceramic and final
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1.1.1 微观结构................................................................................... 6
1.1.2 热稳定性................................................................................... 7
1.1.3 低膨胀性与微裂纹................................................................... 7
1.1.4 机械强度与微裂纹................................................................... 7
1.1.5 钛酸铝陶瓷的应用................................................................... 8
1.2 钛酸铝陶瓷主要制备方法.................................................................... 8
1.2.1 固相法....................................................................................... 8
1.2.2 液相法....................................................................................... 8
1.2.3 气相法....................................................................................... 9
2 机械激活法....................................................................................................... 9
2.1 原理介绍................................................................................................ 9
2.2 机械激活法优缺点 .............................................................................10
3 凝胶注模工艺..................................................................................................11
3.1 原理介绍...............................................................................................11
3.2 凝胶注模方法流程...............................................................................11
3.3 凝胶注模的应用...................................................................................11
3.3.1 在粗粒度粉体中的应用..........................................................11
3.3.2 在复合材料领域中的应用......................................................12
3.3.2 在多孔材料领域的应用..........................................................12
3.3.4 在功能材料领域中的应用......................................................12
3.3.5 在粉末冶金领域中的应用......................................................12
3.4 凝胶注模优缺点...................................................................................12
第二章 实验及结果....................................................................................................13
1 实验仪器、药品..... ……（未完，全文共17058字，当前仅显示3068字，请阅读下面提示信息。收藏《论文:具有异向生长的钛酸铝陶瓷粉_备及其凝胶注模方法探究》）