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Machine translation
1. (WO1980002818) CARBON COMPOSITE ARTICLE AND METHOD OF MAKING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002818    International Application No.:    PCT/US1980/000627
Publication Date: 24.12.1980 International Filing Date: 23.05.1980
IPC:
C04B 35/80 (2006.01), C04B 35/83 (2006.01)
Applicants:
Inventors:
Priority Data:
47158 11.06.1979 US
Title (EN) CARBON COMPOSITE ARTICLE AND METHOD OF MAKING SAME
(FR) ARTICLE COMPOSITE DE CARBONE ET SA METHODE DE FABRICATION
Abstract: front page image
(EN)A carbon composite article and the method of making the article wherein selected carbon fibrous materials are formed into a basic starting substrate (14) having a volume greater than the desired volume of the finished article. Very small amounts of a carbonaceous binder material (16) are used to bond the fibrous materials together at a multiplicity of bonding sites. The basic substrate is then subjected to controlled temperatures and pressures to form a shaped substrate characterized by having a high degree of open porosity, a predetermined shape and structural integrity sufficient to withstand subsequent substrate processing. The carbonaceous binder is applied to the fibrous material in a manner whereby substantial encapsulation of the individual fibers is avoided so that the portions of the fibers disposed intermediate the bonding sites are free to move to accomodate and effectively distribute stresses which may be generated within the substrate due to material shrinkage or other process related causes. The shaped substrate is then partially or fully densified in a freestanding configuration by chemical vapor deposition of pyrolytic materials interstitially of the substrate.
(FR)Dans une methode de fabrication d"un article composite de carbone, des materiaux fibreux de carbone selectionnes sont formes en un substrat de base (14) ayant un volume plus grand que le volume desire de l"article fini. De tres petites quantites d"un materiau liant carbone (16) sont utilisees pour lier ensemble les materiaux fibreux en une multitude de points de liaison. Le substrat de base est alors soumis a des temperatures et des pressions controlees pour former un substrat faconne caracterise par un degre eleve de porosite ouverte, une forme et une integrite structurelles predeterminees suffisantes pour supporter le traitement ulterieur du substrat. Le liant carbone est applique sur le materiau fibreux d"une maniere telle que l"on evite l"encapsulation des fibres individuelles pour que les portions des fibres disposees entre les points de liaison soient libres de se deplacer pour supporter et distribuer efficacement les contraintes qui peuvent etre produites dans le substrat en raison de la contraction du materiau ou autres causes en rapport avec le traitement. Le substrat faconne est alors densifie partiellement ou entierement par depot chimique de vapeurs de materiaux pyrolytiques dans les interstices du substrat.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)