Deoxidation of a refractory metal

Details Deoxidation of a refractory metal Deoxidation of a refractory metal

1990-02-22

1991-06-11

Lechert, Jr., Stephen J.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 27, 148132, 148133, 75614, C21D 100

Patent

active

050229354

ABSTRACT:
A process for the deoxidation of a refractory metal containing minor concentrations of oxygen is disclosed. In this process the refractory metal is contacted with a metallic deoxidant in a dry, inert atmosphere. The metallic deoxidant and the refractory metal are heated to at least liquefy the metallic deoxidant and at least partially deoxidize the refractory metal. The refractory metal is thereafter cooled and contaminants on its surface are removed.

REFERENCES:
patent: 2537068 (1951-01-01), Lilliendahl et al.
patent: 2653869 (1953-09-01), Gregory et al.
patent: 2834667 (1958-05-01), Rostron
patent: 4126493 (1978-11-01), Wurm
patent: 4519837 (1985-05-01), Down
patent: 4923531 (1990-05-01), Fisher

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