Application of ARB process for manufacturing high-strength, finely dispersed and highly uniform Cu/Al2O3 composite

▶ When the number of ARB cycles increased, the uniformity of alumina particles in the copper matrix and bonding quality between alumina and copper improved. ▶ Copper/alumina composite exhibited a higher tensile strength than the annealed and ARBed pure copper strips. ▶ The tensile strength and elongation of the composites improved, when the number of cycles increased. ▶ The produced MMC exhibited a higher hardness than the annealed and ARBed pure copper strips.