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研究了采用直接氧化法制备Ａ１２Ｏ３／Ａ１复合材料，实验分析了镁元素对铝氧化的决定 因素和硅对氧化速度的影响，通过Ｘ-线衍射对烧结材料进行物相分析，光镜观察烧结材料 的结构是三维联通的三氧化二铝陶瓷多晶体中分布了三维联通的网状的残余铝合金．
The direct oxidation method was used to prepare A12O3 / A1 composites. The effect of magnesium on the oxidation of aluminum and the effect of silicon on the oxidation rate were analyzed. The phase structure of the sintered material was analyzed by X-ray diffraction. The structure is three-dimensional Unicom alumina ceramic polycrystalline distribution of the three-dimensional mesh network of residual aluminum alloy.