The Influence on the Properties of Microporous Mullite of Adding Different Burning-out Materials

摘要：

Mullite has low thermal conductivity, advanced volume stability at high temperature, and is suit to prepare lightweight refractories. The micropored mullite aggregates has been produced by using industrial alumina and natural silica as starting materials, adding some burning-out materials, then fired at 135CTC for 6h. The influences on the bulk density, pore size distribution and microstructure of microporous mullite of adding these burning-out materials, such as carbon black, coke, and anthracite have been investigated. The conclusions are that the influences on the bulk density and microstructure of micropored mullite aggregates are significant. These three burning-out materials have a similar effect for the pore size distribution. The microporous mullite aggregates has the smallest bulk density and more uniform microstructure by using anthracite as the burning-out material.

关键词： Mircoporous lightweight mullite refractories

作者: Yubao Bi Huifang Wang Wei Lu

作者单位: High Temperature Materials Institute,Henan University of Science and Technology Henan 471003,China

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 84-88

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）