Process for deoxidation of refractory metals

Details Process for deoxidation of refractory metals Process for deoxidation of refractory metals

1973-08-06

1978-11-21

Dean, R.

Metal treatment

Compositions

Heat treating

148 27, 148133, C22F 118

Patent

active

041264932

ABSTRACT:
Refractory metals, especially niobium and tantalum, are deoxidized by heating at 600.degree. to 1300.degree. C. under a protective gas in an alkali or alkaline earth halide salt melt containing at least 10% fluoride.

REFERENCES:
patent: 2554042 (1951-05-01), Mayfield
patent: 2710271 (1955-06-01), Fernsler et al.
patent: 2844499 (1958-07-01), Wainer
patent: 2931778 (1960-04-01), Ilenda et al.
patent: 2976194 (1961-03-01), Commanday et al.
patent: 3017299 (1962-01-01), Carter

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