硅酸盐通报2012，Vol.31Issue(1)：132-135,4.
α-Al2O3含量对刚玉-莫来石材料物理性能的影响
Effects of αβ-Al2O3 Content on Physical Properties of Corundum-mullite Materials
摘要
Abstract
The corundum-mullite materials were fabricated using fused mullite and tabular corundum as raw materials,and effect of the content of a-Al2O3 powder(6% ,8% ,10% ,12% )on its properties such as bulk density, apparent porosity, bending strength, and thermal shock resistance have been studied. The microstructure of the samples has been investigated by X-ray diffraction ( XRD) , scanning electron microscopy (SEM) and energy dispersive spectrometer ( EDAX). The results show that both the bulk density and high temperature strength of samples sintered at 1600 t for 3 h are first increasing and then decreasing with the increase of ot-Al2O3 content. When the content of a-Al2O3 is about 8% ,the particle grows up and bonds closely. So the network has been formed and give rise to corundum-mullite materials with better physical properties.关键词
刚玉-莫来石/α-Al2O3微粉/物理性能/显微结构Key words
corundum-mullite/a-Al2O3 powder/physical properties/microstructure分类
化学化工引用本文复制引用
李享成,朱伯铨,王堂玺,王峰裕..α-Al2O3含量对刚玉-莫来石材料物理性能的影响[J].硅酸盐通报,2012,31(1):132-135,4.基金项目
国家自然科学基金项目(No.50904048) （No.50904048）
湖北省自然科学基金重点项目(2010CDA028) （2010CDA028）
