莫来石
刚玉
材料科学
钙长石
腐蚀
坩埚(大地测量学)
微观结构
冶金
相(物质)
复合材料
矿物学
陶瓷
化学
计算化学
有机化学
作者
Yuchi Liu,Yunqin Gao,Hongfeng Yin,Yalou Xin,Yun Tang,Hudie Yuan,Kewei Sun
摘要
Abstract The corrosion resistance of lightweight and dense mullite–corundum refractories to cement materials was examined. The specimens following static crucible treatment were investigated using phase analysis, microstructure, and thermodynamic simulation. The results reveal that diffusion of the silica‐rich phase enhances alumina saturation solubility in the slag, reducing the corrosion resistance of the mullite–corundum refractories. The large proportion of closed pores and the continuous net‐like structure of anorthite created by the corrosion reaction in the matrix, on the other hand, prevent further slag penetration into the lightweight mullite–corundum refractories. As a result, the presence of the silica‐rich phase assures better slag penetration resistance of lightweight mullite–corundum refractories.
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