Effects of rare earth oxides additions on microstructure and properties of alumina-magnesia refractory castables
Effects of rare earth oxides additions on microstructure and properties of alumina-magnesia refractory castables
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DOI：
10.1016/j.ceramint.2017.02.082
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发表时间：
2017-06
影响因子：
5.2
通讯作者：
W. Yuan;Z. Qingyou;C. Deng;Hong-xi Zhu
中科院分区：
文献类型：
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作者：
W. Yuan;Z. Qingyou;C. Deng;Hong-xi Zhu
为了适应钢铁工业对浇注料的高性能要求，研究了稀土氧化物的添加对铝镁耐火浇注料组织和性能的影响。比较了浇注料的相组成、表观孔隙率、永久线性变化和强度等性能。结果表明，氧化钇和氧化铈对浇注料的原位反应和体积稳定性有不同程度的影响。尖晶石和六铝酸钙（CA6）的固溶含量均与添加量有关。
To accommodate the glaring requirements of castables with high performances for the iron and steel making industry, effects of rare earth oxides additions on microstructure and properties of alumina-magnesia refractory castables were investigated. The properties of castables including phase compositions, apparent porosity, permanent linear change and strength were compared. It was demonstrated that yttria and ceria presented varying degrees of influence on in-situ reactions and volumetric stability of castables. The solid-soluted content of spinel and calcium hexaluminate (CA6) was both dependent on the additions.