Method of making metal composite materials

Details Method of making metal composite materials Method of making metal composite materials

1995-03-29

1996-04-09

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 14, 419 15, 428570, B22F 102, B22F 700

Patent

active

055059023

ABSTRACT:
A method wherein one or more metal salts of at least one iron group metal containing organic groups are dissolved and complex bound in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR.sub.3, (RH.dbd.H or alkyl). Hard constituent powder and, optionally, a soluble carbon source are added to the solution. The solvent is evaporated and the remaining powder is heat treated in an inert and/or reducing atmosphere. As a result, coated hard constituent powder is obtained which after addition of a pressing agent can be compacted and sintered according to standard practice to a body containing hard constituents in a binder phase.

REFERENCES:
patent: 4498395 (1985-02-01), Kock et al.
patent: 4770907 (1988-09-01), Kimura
patent: 4818567 (1989-04-01), Kemp, Jr. et al.
patent: 4975333 (1990-12-01), Johnson et al.
patent: 5223195 (1993-06-01), Kuwabara
patent: 5405573 (1995-04-01), Clark et al.

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