Cu-Al/Al₂O₃ Cermet Synthesized by Reactive Ball Milling of CuO-Al System

摘要

A mechanochemical method of a single-stage synthesis of a metal matrix composite consisted of copper aluminides, Cu₉Al₄, reinforced by fine particles of aluminium oxide was investigated. It was demonstrated that CuO and Al can react forming directly g-Cu₉Al₄ intermetallic compound when the initial content of aluminium is higher than stoichiometric one. It is shown that Al₂O₃ particles in the synthesized cermet have a size ranging from 500 to 100 nm.