Apparatus for improving quality of metal or ceramic powders prod

Details Apparatus for improving quality of metal or ceramic powders prod Apparatus for improving quality of metal or ceramic powders prod

1989-02-02

1990-08-28

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means making particulate material directly from liquid or...

And distinct means applying congealing fluid to formed...

148143, 148403, 264 5, 264 15, B22F 908

Patent

active

049521446

ABSTRACT:
An apparatus for forming ceramic or metal powders has a plasma generator, a source of material in the form of powder particles and a projection torch for passing the material through the plasma to melt the powder particles and then projecting a stream of plasma and material via an outlet. A container is provided for containing the projected stream. A plurality of spray diffusers are arranged to diffuse a spray of cryogenic liquid into a space through which the projected stream travels, whereby the projected stream is quenched. A console controls the flow rates of the powder particles and the plasma into the projection torch.

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NASA Tech Brief 4G, Apr. (1985), "Hollow Spheres of Metallic Glass".

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