Hot rolling of ceramics by the use of self propagating synthesis

Details Hot rolling of ceramics by the use of self propagating synthesis Hot rolling of ceramics by the use of self propagating synthesis

1984-10-19

1987-02-10

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 10, 419 12, 419 15, 419 16, 419 17, 419 34, 419 45, 419 50, 419 52, 419 63, 419 69, 264 80, 264102, 264125, 264332, C22C 3200

Patent

active

046422188

ABSTRACT:
A method for producing high technology ceramics with minimal porosity comsing the steps of filling a can with a constituent powder of a ceramic, creating a vacuum in the can and maintaining the vacuum throughout the entire process; outgassing the powder in the can by placing a furnace around the area of the can that encloses the powder and heating the furnace to at least 100.degree. C.; removing the furnace after a minimum of five minutes of heating; cold rolling the can in a rolling system; igniting the powder so a localized propagation reaction front is created; and hot rolling the can in the rolling system so the propagation reaction front is maintained between the rolls of the rolling system.

REFERENCES:
patent: 2599185 (1952-06-01), Lepp et al.
patent: 3150973 (1964-09-01), Storchheim
patent: 3194858 (1965-07-01), Storchheim
patent: 3353954 (1967-11-01), Williams
patent: 3505438 (1970-04-01), Biddulph
patent: 3690961 (1972-09-01), Berghetan
patent: 4126451 (1978-11-01), Nayar
patent: 4585617 (1986-04-01), Tenhover et al.
patent: 4585618 (1986-04-01), Fresnel et al.

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