本文简述并研讨了耐火材料中主晶相的种类、含量、粒度、形貌和分布、低熔点相、气孔对材料性能和蚀损行为的一般规律,以镁砂、堇青石 -莫来石、重结晶碳化硅和氮化物结合碳化硅材料等为例,探讨了优化显微结构对改进耐火材料的品质和延长其使用寿命的作用,对耐火材料的某些课题也进行了讨论.
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