高能球磨法制备SiC/Al复合材料

SiC/Al Composite Prepared by High Energy Ball Milling Method

采用高能球磨法制备了SiC颗粒增强Al基复合材料,研究了SiC含量对该复合材料力学性能的影响。结果表明,SiC/Al复合材料的硬度、屈服强度以及抗拉强度随SiC含量的增加而增大,而伸长率随之减小;SiC/Al复合材料呈延性断裂和脆性断裂混合断裂;随着SiC含量的增加,材料延性断裂特征减少。

SiC particle reinforced pure aluminum matrix composite was prepared using high energy ball milling method.The effects of the mass fraction of SiC particles on the mechanical properties of the composite were studied.The results indicate that the hardness,yield strength and tensile strength of the composite increase,but the elongation decreases with the increase of the weight fraction of the SiC particles.The fracture morphology indicates that SiC/Al composite shows both ductile and brittle fracture characteristics,and along with increasing the weight fraction of the SiC particles,and the ductile fracture feature decreases.