高含量碳化矽鋁基複合材已逐漸在電子構裝應用上受到矚目，本研究將試著以粉末冶金的方法製作Al/40vol%SiC、Al/50vol%SiC及Al/60vol%SiC各種不同含量之Al/SiC複合材，製程上是使用熱壓加上超固相燒結，研究中會探討不同顆粒大小及熱壓時間對熱壓緻密度的影響，並發現不論是Al/40vol%SiC、Al/50vol%SiC或Al/60vol%SiC， SiC：Al之顆粒大小比(PSR)越大，對應的緻密度越高；由變異數分析可得知SiC顆粒大小為影響緻密度主要因素；在後續的超固相燒結也會發現，大致上，提高固相比及延長燒結時間會提高Al/SiC複合材的緻密度，對Al/SiC複合材機械性質會有所提升。

　　High content silicon carbide particle reinforced aluminum composites have generally fixed someone's eyes upon the application of electronic packaging. In this research, Al/high content SiC composites (Al/40vol%SiC, Al/50vol%SiC & Al/60vol%SiC) will be fabricated by P/M method. The Al/high content SiC composites are first hot pressing and then Supersolidus Liquid Phase Sintering (SLPS). The effects of particles size and HP time for density will be conferred in the research. The results show that, no matter what SiC content in Al/SiC composites is, the density increases with the particle size ratio (SiC : Al) increasing. From analysis of variables, we know that the major factor controlling the density of composites is particles size of SiC. At following SLPS, it can find increasing the liquid fraction and extending sintering time will enhancing the density and improve the mechanical properties.

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