The phases and structure of the composites were analyzed by X-ray, SEM, EPMA and optical microscopy. The influences of the amount of Si or SiO2 and the structure on the properties of Mg2Si/Mg composites are discussed.

• 利用X-射线衍射仪、光学显微镜、扫描电镜、电子探针等对制备的镁基复合材料相组成、组织结构等进行了分析，探讨了Si及SiO_2加入量以及组织结构对镁基复合材料性能的影响。