Method of making powders and products of tantalum and niobium

Details Method of making powders and products of tantalum and niobium Method of making powders and products of tantalum and niobium

1990-12-12

1993-09-07

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

75369, B22F 920

Patent

active

052424812

ABSTRACT:
A powder of tantalum, niobium, or an alloy thereof, having an oxygen content less than about 300 ppm, and the production thereof without exposure to a temperature greater than about 0.7 T.sub.H. A powder metallurgy formed product of tantalum, niobium, or an alloy thereof, having an oxygen content less than about 300 ppm, and the production thereof without exposure to a temperature greater than about 0.7 T.sub.H.

REFERENCES:
patent: 3697255 (1972-10-01), Baldwin et al.
patent: 4141720 (1979-02-01), Vartanian
patent: 4508563 (1985-04-01), Bernard et al.
patent: 4722756 (1988-02-01), Hard
patent: 4923531 (1990-05-01), Fisher
patent: 4954169 (1990-09-01), Behrens
patent: 4964906 (1990-10-01), Fife

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