研究了烧成温度和保温时间对添加活性氧化铝的红柱石基耐火材料莫来石化行为的影响.对试样XRD数据的分析结果表明,烧成温度升高,莫来石含量线性增大,残存红柱石线性减少,二者具有良好的相关性.氧化铝溶解入液相主要在1400℃之前.二次莫来石化反应主要发生在1500℃之后.1600℃烧成时,保温3h之内,莫来石含量增长速度最快.二次莫来石的生成反应在一定程度上滞后于一次莫来石反应和刚玉溶解入液相的反应.
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