利用化学方法制备ρ-Al_2O_3

PRODUCE ρ-Al_2O_3 BY CHEMICAL METHOD

以氯化铝为起始原料 ,采用化学沉淀和真空加热法制备了中间体 ρ-Al2 O3,通过水化质量增加法测定了合成产物中 ρ-Al2 O3的含量 ,并采用 XRD研究了合成温度对产物的晶体结构的影响规律 ,同时还采用 DTA分析方法对合成产物水化特征及其相互转变进行了表征。

The ρ -Al 2O 3 was produced by a chemical method, using aluminium chloride as starting materials. The content of ρ -Al 2O 3 was researched by measuring the weight change of the sample. Also the influence of temperature on crystalline properties was evaluated by XRD and DTA analyses.