Production of tantalum-tungsten alloys production by powder meta

Details Production of tantalum-tungsten alloys production by powder meta Production of tantalum-tungsten alloys production by powder meta

1997-12-24

1999-06-29

Jenkins, Daniel J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Alloying occurs during sintering

419 38, 75246, C22C 104, C22C 2702

Patent

active

059181044

ABSTRACT:
Powder metallurgy production of Ta10W alloy affording properties comparable to melt derived Ta10W, but at higher yields and lower costs, is enabled by blending component powders of minus 325 mesh and sintering at 2,400.degree. C. in three sinter steps and utilizing a slow ramp up in the first sinter step and cold isostatic pressing prior to the first sinter step and isostatic press densification in conjunction with at least the first sinter step.

REFERENCES:
patent: 4859257 (1989-08-01), Bates et al.
patent: 5171379 (1992-12-01), Kumar et al.
patent: 5242481 (1993-09-01), Kumar
patent: 5580516 (1996-12-01), Kumar

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