Using MgCl2·6H2O to Improve the High Temperature Expansion of Alumina-spinel Castables

摘要：

　　Using MgCl2·6H2O to control the high temperature expansion of alumina-spinel castables has been studied.The results indicated that it is very efficient to improve the volumetric stability of alumina-spinel castables bonded by calcium aluminate cements at 1500℃ by adding MgCl2·6H2O.Microsilica is known by its counterbalancing effect on the in situ calcium hexaluminate(CA6)expansion in alumina-spinel castables.However,the decline of the castables expansion at 1500℃ by adding MgCl2·6H2O is implemented by restraining the growth velocity of CA6 crystal in the castables at high temperature.

关键词： alumina-magnesia castable calcium hexaluminate high temperature expansion MgCl2·6H2O

作者: LI Tianqing ZUO Qixiu GAO Jie YAN Guanghui

作者单位: Puyang Refractories Group Co.,Ltd.,Puyang 457100,China

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: 1-4

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）