依据Al-Cu-Mg合金相图,采用不同比例的原材料成分配比进行真空冶炼和热处理制备金属间化合物Al2 CuMg,并采用扫描电子显微镜、能谱分析、X射线衍射等方法分析材料的成分、组成和微观组织.结果表明:配比为51 Al-33Cu-16Mg(质量分数,下同)的原材料经真空熔炼、定向凝固和水冷后得到粗大晶粒的Al2 CuMg相,且杂质较多；配比为50Al-25Cu-25 Mg的原材料经真空熔炼、凝固和水冷获得多相材料,在510℃进行不同时间的热处理,经72h保温处理后能得到纯度高达98％的Al2CuMg相材料.
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