利用超音速气体雾化法制备Al-17Si-6Fe-4.5Cu-0.5Mg合金粉末,借助X射线光电子能谱(XPS)对粉末态合金表面氧化和吸附特性进行了研究,并对粉末表面层结构进行了分析.结果表明:粉末表面氧化主要以Al和Mg元素的氧化为主,氧化层成分主要为Al2O3,Al(OH)3和MgO,而合金中的Si,Fe及Cu元素很少氧化;除此之外,在粉末表面化还吸附一层含Cl元素的碳氢有机化合物污染层,测定表明粉末表面氧化层和吸附层总厚度约为2nm.
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