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应用氯气保护、半固态搅拌铸造法制备了Al／SiC颗粒增强的复合材料。其制备过程是将温度控制在困-液相温度范围内，通过搅拌器高速旋转使金属产生旋涡，然后向旋涡中逐渐投入颗粒，使之分布均匀。尔后迅速升温至可浇铸温度（720°C左右），在100MPa压力下成形。得到的复合材料中Sic颗粒的分布比较均匀，没有发现结团和宏观气孔。由于Sic颗粒的加入，材料的弹性模量、屈服强度较基体材料有很大提高。而且，由于SiCp颗粒对基体材料滑移的阻碍而使复合材料的应变硬化率提高。
Al / SiC particle reinforced composites were prepared by semi-solid stirring casting with chlorine gas. The preparation process is to control the temperature in the sleepy - liquid temperature range, high speed rotation of the stirrer to make the metal vortex, and then gradually into the vortex particles, so that the distribution. After rapid heating to casting temperature (720 ° C or so), at 100MPa pressure forming. The distribution of SiC particles in the obtained composite material is relatively uniform, and no agglomeration and macropores are found. Due to the addition of SiC particles, the elastic modulus and yield strength of the material are much higher than that of the matrix material. Moreover, the strain hardening rate of the composite material is increased due to the obstruction of slippage of the matrix material by SiCp particles.