Process for producing ultrafine particles of metals, metal compo

Details Process for producing ultrafine particles of metals, metal compo Process for producing ultrafine particles of metals, metal compo

1988-03-11

1989-03-14

Stallard, Wayland

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

21912159, 21912137, 21912153, 21912148, 31511151, B22F 908

Patent

active

048121665

ABSTRACT:
Ultrafine particles of metals, metallic compounds, and ceramics can be produced by heating a starting material supplied hermetically with a plurality of direct current plasma currents combined at a central axis of a work coil for generating high frequency induction plasma positioned under the direct current plasma generated zone. Apparatuses used therefor are also disclosed.

REFERENCES:
patent: 3714390 (1973-01-01), Foex et al.
patent: 4105437 (1978-08-01), Liu
patent: 4626648 (1986-12-01), Browning
patent: 4727236 (1988-02-01), Hull et al.
patent: 4731517 (1988-03-01), Cheney

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