Kabushiki Kaisha Kobe Seiko Sho

Hiroyuki Morimoto

Yoshihiro Yamaguchi

Hiroyuki Murata

Jun Hirose

Shunichi Mizukami

Hiroshi Iwamura

Kenichiro Ohuchi

Kenichiro Ouchi

Described herein is an SiC-reinforced aluminum alloy composite material of the type having silicon carbide uniformly dispersed in an aluminum alloy matrix containing magnesium as a strengthening element, characterized in that the composite material contains Al4C3 in an amount smaller than 0.5 wt % and residual oxygen in an amount smaller than 0.4 wt %, and has a modulus of elasticity higher than 9000 kgf/mm.sup.2.

SiC-reinforced aluminum alloy composite material

A pellet for fabricating a metal matrix composite is made of a mixture of a matrix member of a metal powder and at least one reinforcement selected from whiskers, short fibers and suitable particles, the reinforcement being uniformly distributed in a matrix of the metal powder and said mixture being kept in a shape with a binder, wherein said pellet has a surface layer of dried and rigid portion of said mixture which is rigid enough to keep its shape under an external pressure applied thereto. The pellet is formed from a flat cake of the mixture separated from a slurry consisting of a solution medium and the mixture dispersed therein uniformly. Alternatively, the pellet is formed from the mixture in a dried condition with a granulation binder diluted with a solution medium.

Pellet for fabricating metal matrix composite and method of preparing

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Himeji, Japan

Hiroyuki Morimoto