Fabrication of Cu-SiC surface composite under ball collisions

▶ Cu-SiC surface composite was fabricated by ball collisions at room temperature after 15 min treatment. ▶ Composite formation was the result of mechanical mixing of the plasticized Cu and the SiC particles. ▶ Ball collisions refined the grains near the surface to the nanometer scale. ▶ Initial rolling texture of the Cu plate was completely destroyed by 15 min of ball collisions. ▶ Surface hardness of the composite layer was almost twice that of the initial Cu plate.