首次采用无压浸渗工艺,使Al液自发浸渗进入多孔Si预制件中,制备出Al/70vol%SiP复合材料,对该材料的浸渗过程、组织特点和热物理性能进行了分析.研究发现,与其他方法相比,无压浸渗料获得的高含量Sip/Al复合材料,在性能上具有低密度、高导热率、低膨胀系数等特点,具备了热控制材料的基本特征,明显优于Cu-W、Fe-Ni合金、Kovar合金、SiCp/al复合材料,以及采用其他工艺制备的Si/Al复合材料.
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