Process for forming fiber reinforced composite articles

Details Process for forming fiber reinforced composite articles Process for forming fiber reinforced composite articles

1990-05-23

1992-05-26

Lindsay, Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 321, 65102, 65103, 264113, 264125, C03C 2500

Patent

active

051163985

ABSTRACT:
A method of manufacturing a glass or glass-ceramic matrix composite article is disclosed which serves to eliminate the need for an expensive vacuum hot press and to significantly reduce the time required for densification. A preform composed of a mixture of chopped or continuous fibers such as carbon or silicon carbide and glass powder is heated to a temperature sufficiently high to soften the glass powder to a deformable state. Thereupon, the preform is deformed between dies which are at a temperature below that of the preform. A resultant composite article assumes the configuration of the shaped die cavity and is cooled by the natural loss of heat to the dies.

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patent: 4921518 (1990-05-01), Allaire et al.

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