Pellet for fabricating metal matrix composite and method of prep

Details Pellet for fabricating metal matrix composite and method of prep Pellet for fabricating metal matrix composite and method of prep

1987-12-15

1990-01-16

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75236, 75243, 75244, 75245, 75246, 75248, 419 11, 419 12, 419 15, 419 17, 419 19, 419 23, C22C 2912

Patent

active

048940887

ABSTRACT:
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.

REFERENCES:
patent: Re29865 (1978-12-01), Steigelman et al.
patent: 4224380 (1980-09-01), Bovenkerk et al.
patent: 4604259 (1986-08-01), Whitman
patent: 4623388 (1986-11-01), Jatkar et al.
patent: 4639281 (1987-01-01), Sastry et al.
patent: 4702770 (1987-10-01), Pyzik et al.

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