This study investigates the influence of micro and nano silicon carbide on properties of copper matrix composites/nanocomposites containing up to 4 wt% of reinforcement concentration. It was observed that an increase of SiC (both micro and nano sized) content resulted in a higher hardness, compressive strength and better wear properties. However, nano SiC reinforced composite materials have better hardness, compressive strength and wear properties as compared with micro sized SiC reinforced composites. Grain refinement of composite/nanocomposite materials as compared with pure copper materials were observed from the metallurgical microscopic images. Further, scanning electron microscopic images revealed uniform dispersion/distribution of reinforcing materials in the copper matrix, and good bond formation between component materials. As the micro/nano sized SiC reinforcement in the copper matrix decreased the density of resultant composite/nanocomposite materials, therefore, nano sized SiC reinforcement will be helpful to fabricate light weight copper matrix nanocomposite materials for various industrial applications.

这项研究调查了微和纳米碳化硅对铜基复合材料/纳米复合材料（含高达4 wt％的增强浓度）的性能的影响。观察到，SiC（微米级和纳米级）含量的增加导致较高的硬度，抗压强度和更好的耐磨性。然而，与微米级SiC增强复合材料相比，纳米SiC增强复合材料具有更好的硬度，压缩强度和耐磨性。从金相显微图像观察到与纯铜材料相比，复合材料/纳米复合材料的晶粒细化。此外，扫描电子显微镜图像显示出增强材料在铜基质中的均匀分散/分布，以及组成材料之间良好的结合形成。