The results showed the reaction between the Mg and Si powders was solid-state reaction and impurities such as MgO, Mg3C2: were usually produced resulting from the reactions with air or graphite crucible since Mg was very active.

• 结果表明：Mg颗粒与Si颗粒之间的反应是固相反应，杂质的引入是由于Mg元素高度的活泼性能而混入的MgO、Mg_3C_2等气相反应的产物。