Process for sintering extruded powder shapes

Details Process for sintering extruded powder shapes Process for sintering extruded powder shapes

1986-01-03

1987-05-19

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

219 61, 219121P, 264 65, 2642091, 266257, 373 18, D02G 300

Patent

active

046667750

ABSTRACT:
An improved process for sintering extruded powder shapes comprising drying or calcining an extruded shape in a microwave furnace and rapid sintering the shape in a plasma fired furnace. Alternatively, calcining or drying may take place within a furnace heated by the plasma furnace's exhaust. The process of the invention is especially useful for silicon carbide extruded materials and for tubular shapes. This process significantly reduces sintering times and costs. Use of the process yields a high strength sintered product.

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"Test Furnace Achieves 2200.degree. C. (4000.degree. F.) in Air, Inert Atmospheres", presented by Harper Electric Furnace Corp., Harper Highlights, vol. 5, No. 1, Spring 85.

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