Manufacturing of aluminum flake powder from foil scrap
A feasibility study for producing aluminum flake powder from aluminum foil scrap by dry ball milling under an inert argon with a few % of oxygen was carried out. It was found that the pieces of aluminum foil scrap were laminated to each other, elongated by microforging of the falling balls, fragmented into small pieces of foil and finally formed into flake powder, during the ball milling.