利用挤压铸造制备氧化铝 /锌合金复合材料 ,在扫描电镜 (SEM)上观察复合材料的界面。在复合材料中纤维与基体间存在致密界面层 ,合金元素通过适当的化学反应可改善纤维与基体间的结合 ,在凝固过程中 ,纤维/基体界面上的硅在共晶体的共生生长过程起到领先相作用 ,导致复合材料的共晶转变是由铝硅共晶转变和锌铝共晶转变两者组成 Alumina / zinc alloy composites were prepared by extrusion casting and the interface of the composites was observed by scanning electron microscopy (SEM). In the composite material, there exists a dense interface layer between the fibers and the matrix. The alloying elements can improve the bonding between the fibers and the matrix through proper chemical reaction. During the solidification process, the silicon on the fiber / matrix interface coexists in the eutectic The leading phase effect, resulting in the eutectic transformation of the composite material is composed of aluminum-silicon eutectic transformation and zinc-aluminum eutectic transformation of both