In the present research, the effects of the size and amount of CNT and SiC particles on the mechanical properties of Al matrix composite were investigated. SiC of particle size 10 μm, CNT 10–40 nm, and Al powder of particle size less than 50 μm and purity 99.99% were used. Composites of Al with 3, 6, 9 and 12 wt.% SiC and 0.25, 0.5, 0.75, and 1 wt.% CNT were manufactured by powder metallurgy technique by cold compaction and vacuum sintering. Relative density, hardness, compression and friction coefficient were studied. The results of scanning electron microscope (SEM) and optical microscope observations illustrated that the distribution of the reinforcing particles was uniform. Moreover, increasing the amount of SiC and CNT leads to decreasing the relative density and improving the hardness and compressive strength of Al–SiC and Al-CNT composites.

在本研究中，研究了CNT和SiC颗粒的尺寸和数量对Al基复合材料力学性能的影响。使用了粒径为10μm的SiC，碳纳米管为10–40 nm的碳粉和粒径小于50μm且纯度为99.99％的Al粉。通过粉末冶金技术通过冷压和真空烧结制造具有3、6、9和12重量％的SiC和0.25、0.5、0.75和1重量％的CNT的Al的复合物。研究了相对密度，硬度，压缩率和摩擦系数。扫描电子显微镜（SEM）和光学显微镜的观察结果表明，增强颗粒的分布是均匀的。此外，增加SiC和CNT的含量会导致相对密度降低，并改善Al-SiC和Al-CNT复合材料的硬度和抗压强度。