Sintering metal powders into structures without sintering aids

Details Sintering metal powders into structures without sintering aids Sintering metal powders into structures without sintering aids

1988-07-15

1991-02-12

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making porous product

419 36, 419 37, 419 57, 419 58, B22F 100

Patent

active

049922335

ABSTRACT:
Sintering metal powder in inert and/or reducing atmosphere has been found to result in a hard porous metal structure without the use of sintering aids. The oxidation resistance of the structure can be enhanced by the firing process comprised of the following steps: oxidation, reduction, and then inert gas sintering.

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