Particle reinforced aluminum matrix composites (PRAMMCs) show manyexcellent characteristics such as high specific strength, low density, low thermalexpansion coefficient, good wear resistance and thermal stability, simple productionprocess, mature technique, low cost, etc. they are having much rapid development inaviation, spaceflight, automobile, electronics and other fields. Silicon PRAMMCswere prepared by powder metallurgical (P/M) method. The effect of the various factorsin the process was studied in th...