中文摘要：

目前关于Ca-Ga体系计算相图的文献报道较少，为了更好地了解Ca-Ga体系中各个相互作用规律，有必要对化合物CaGa2＋x的共熔区间范围进行确定的测定。本文通过利用X射线衍射分析法（XRD）和化学分析法对实验制备的一定组成的钙镓合金进行物相鉴定，确定化合物CaGa2.36。存在，为进一步研究Ca-Ga体系提供参考。

英文摘要：

CALPHAD studies in the Ca-Ga system are scarce, to the best of our knowledge of the possible phase equilibria involved in the system of Ca-Ga, it is obviously prerequisite to identify the cotectic region of CaGa2＋x. By applying X-ray diffraction method and to the prepared Ca-Ga alloys in the present work, we identify the existing of the compound CaGa2.36, which takes instruction for researching the Ca-Ga system.