The Reaction Mechanism between Aluminum-Magnesia-Spinel Composite Material and RH slag
Unfired specimens were made with different aluninum content (0,2%,4%,6%,8%) respectively,using high pure magnesia,magnesia-spinel and Aluninum as the main raw material.Unfired specimens were treated under the condition:110℃ ×24h drying,then 300℃ ×6h heating treatment.The properties and microstructure of the specimens were analyzed to investigate the reaction mechanism of these speciments and RH refinery slag.The result are shown that the addition of aluninum improves cold crushing strength of specimens,reaching to 63Mpa.The specimen with aluninum content of 8% shown the best slag resistance.The reaction mechanism between aluninum-magnesia-spinel complosite material and RH slag is different from magnesite-chrome brick.The major penetration element is Ca,and the Ca elment penetrated into the matrix reacts with corundum turning out a CA2 protective layer which can stop penetrating of slag.
RH refine processes Al-MgO-MgO.Al2O3 Aluninum
Guodong Ma Yong Li Yuan Gao Shanshan Hong Yaqin Liu Wenbin Xia Zhiming Qian Jingheng Huang
Department of Materials,University of Science and Technology Beijing,Beijing 100083,China Beijing Tongda Refractory Technologies Co.Ltd,Beijing 100085,China Yixing City Nuoming High Temperature Refractory Materials CO.LTD,Baihe RD,Yixing Economic Developmen
国际会议
西安
英文
486-489
2012-06-12（万方平台首次上网日期，不代表论文的发表时间）