Process for encapsulating a shaped body for hot isostatic pressi

Details Process for encapsulating a shaped body for hot isostatic pressi Process for encapsulating a shaped body for hot isostatic pressi

1995-08-29

1997-03-25

Czaja, Donald E.

Glass manufacturing

Processes

Sol-gel or liquid phase route utilized

427227, 427228, 427296, 4273762, C03B 800

Patent

active

056139934

ABSTRACT:
There is disclosed a process for encapsulating a preform of arbitrary size and shape for the purpose of manufacturing a body by means of hot isostatic pressing. The preform is encapsulated with glass using a sol gel technique. The glass initially forms a hard, porous layer. Heating the glass in the hot isostatic press results in the formation of a gas-impermeable capsule around the preform.

REFERENCES:
patent: 4340619 (1982-07-01), Gaul et al.
patent: 4476626 (1984-10-01), Moritoki et al.
patent: 4540803 (1985-10-01), Cannady
patent: 4756977 (1988-07-01), Haluska et al.
patent: 5436083 (1995-07-01), Halusha et al.
Sol-Gel Processing of Complex Oxide Films, by Guanghua Yi and Michael Say American Ceramic Society Bulletin, vol. 70, No. 7, pp. 1173-1179 Jul. 1991.

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