Application of ceramic short fiber reinforced Al alloy matrix composite on piston for internal combu

The preparation and properties of ceramic short fiber reinforced Al-Si alloy matrix composite and it's application on the piston for internal combustion engines are presented.Alumina or aluminosilicate fibers reinforced Al-Si alloy matrix composite has more excellent synthetical properties at elevated temperature than the matrix alloys.A partially reinforced Al-Si alloy matrix composite piston produced by squeeze casting technique has a firm interface between reinforced and unreinforced areas,low reject rate and good technical tolerance.As a new kind of piston material,it has been used for mass production of about 400,000 pieces of automobile engines piston.China has become one of a few countries in which aluminum alloy matrix composite materials have been used in automobile industry and attained industrialization.