Oxide dispersed copper alloys by surface oxidation

Properties of copper matrix reinforced with nano- and micro-sized Al2O3 particles

“…The uniform distribution of nano-sized particles could be accomplished by the processes of internal oxidation. Methods adopted for the internal oxidation usually involve surface oxidation of the prealloyed copper powder particles with formation of copper oxides [1,2], or mixing prealloyed powders and fine copper oxide powders [3]. Subsequent heating to temperatures at which copper oxide dissociates allows the diffusion of oxygen into particles and Al 2 O 3 formation in situ.…”