Investigation on Synthesis of Sintered Mullite from Low-medium Grade Kyanite

摘要：

　　Sintered mullite is prepared by kyanite powder with Al2O3 content of 45%and 50%(Yinshan,Nanyang province,China),the industrial alumina is added to control the chemical composition.The different series of sintered mullite according to the Al2O3 content(45%-70%)are designed.The raw materials are mixed and compacted,and then sintering at different temperatures.Physical properties,phase compositions microstructures and refractoriness under load of the synthesized samples are characterized by physical property test,XRD,SEM and RUL test,in order to confirm the quality of sintering and the relationship between temperature and mullitization reaction.The results show that the sintered mullite from low-medium grade kyanite have well developed mullite crystals,a continuous staggered network structure is formed,which has a significant contribution to increase the high temperature performance of mullite.

关键词： kyanite industrial alumina sintering phase composition microstructure

作者: YE Hang SUN Gaoyang ZHANG Haibo LI Yanjing GAO Changhe LI Yong YE Fangbao

作者单位: Tongda Refractory Technologies Co.,Ltd.Beijing 100085,China;School of Materials Science and Engineer High Temperature Ceramic Institute,Zhengzhou University,Henan 450052,China Tongda Refractory Technologies Co.,Ltd.Beijing 100085,China School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100

会议类型: 国际会议

会议名称: Conference on Refractories International 2018, CRI2018)(2018国际耐火材料学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-7

在线出版日期: 2018-10-17（万方平台首次上网日期，不代表论文的发表时间）