Metal powders and processes for production from oxides

Details Metal powders and processes for production from oxides Metal powders and processes for production from oxides

1984-04-26

1985-05-28

Stallard, Wayland

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BA, 75 05BB, 75 05BC, B22F 900

Patent

active

045198373

ABSTRACT:
Method of forming metal powders from the liquid metal reduction of metal oxides are described. The methods described include the steps of low temperature liquid metal reduction of the oxide, agitation of the reduction reaction mixture and/or distillation of excess reductant upon completion of the reduction step. These steps are designed to limit agglomeration and enhance the purity of the final powder produced. Metal powder produced in accordance with this invention has a basic particle size of 0.1 to 0.5 microns.

REFERENCES:
patent: 2984560 (1961-05-01), Dombrowski
patent: 3990862 (1976-11-01), Dahl et al.
patent: 4356029 (1984-10-01), Down et al.
Jaffee, R. I., et al.; Titanium Science and Technology, pp. 261-269, 381-390, 396, 398, (1972).
Henderson, J. G.; et al., Metallurgical Dictionary, pp. 301, 302, (1953).
Friedman, G., "Titanium Powder Metallurgy", International Journal of Powder Metallurgy, 6, (2), 1970, pp. 43-55.
Powder Metallurgy of Titanium Alloys, Ed. by Froes; F. et al., (1980), pp. 1-19, 71-81, 175-187; The Met. Soc. of the A.I.M.E.

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