Tadashi Donomoto

Fiber reinforced metal type composite material with high purity aluminum alloy containing magnesium as matrix metal

A fiber reinforced metal type composite material is composed essentially of a mass of reinforcing fibers intimately compounded with a matrix metal. The reinforcing fibers are either alumina fibers, carbon fibers, or a mixture thereof. The matrix metal is an alloy consisting essentially of between about 0.5% and about 4.5% magnesium, less than about 0.2% each of copper and titanium, less than about 0.5% each of silicon, zinc, iron, and manganese, and the remainder aluminum. Preferably, the amount of magnesium is between about 0.7% and about 4.5%, and even more preferably it is between about 1.0% and about 4.0%.

Ceramic fiber reinforced piston for high performance diesel engines

A Ceramic Fiber Reinforced Aluminum Matrix Composite has been developed that has excellent wear resistance, seizure resistance against cast iron, good thermal conductivity and high strength at elevated temperatures. By strengthening top land and top ring groove of piston with the Aluminum Matrix Composites, a newly designed Diesel Engine attained excellent performance without sacrificing manufacturing cost and productivity.