Process for forming fiber reinforced composite articles

A method of manufacturing a glass or glass-ceramic matrix composite article (20) 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...

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Bibliographische Detailangaben
1. Verfasser:	PREWO, KARL MICHAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LIME, MAGNESIA MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL REFRACTORIES SLAG SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A method of manufacturing a glass or glass-ceramic matrix composite article (20) 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 (24) which are at a temperature below that of the preform. A resultant composite article (20) assumes the configuration of the shaped die cavity and is cooled by the natural loss of heat to the dies.