本文以碳酸钠和氯化铝为原料,采用沉淀法制备活性氧化铝,对氧化镧改性的氧化铝的高温相变过程进行了研究.运用差热分析法对样品进行热分析,运用XRD和TEM进行物相分析和形貌表征.结果表明:掺杂的镧能够有效的抑制氧化铝在升温过程中的相变,同时能够抑制氧化铝粉体的团聚,保持其高比表面积.
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