C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/628 (2006.01) C01B 21/064 (2006.01) C04B 35/80 (2006.01) C04B 41/45 (2006.01) C04B 41/50 (2006.01) C04B 41/87 (2006.01)
Patent
CA 2279500
The invention concerns: textile preforms, sheathed in a boron nitride coating; said coating (which has been produced on said pre-constituted textile preforms) having an original structure: granular microporous; composite materials structured by thermolysis, the reinforcing texture of which is constituted by said textile preforms; the respective methods for preparing the textile preforms and said composite materials structured by thermolysis. The invention is characterised in that their textile preforms, with fibre base (F), sheathed in the original interphase (I BN), embedded in the densifying matrix (M).
La présente invention a pour objets: des préformes fibreuses, gainées d'un revêtement en nitrure de bore; ledit revêtement (qui a été généré sur lesdites préformes fibreuses pré-constituées) présentant une structure originale: granulaire microporeuse; des matériaux composites thermostructuraux, dont la texture de renfort est constituée par lesdites préformes fibreuses; les préparations respectives desdites préformes fibreuses et desdits matériaux composites thermostructuraux. Les composites de l'invention ont leurs préformes fibreuses, à base de fibres (F), gainées de l'interphase (IBN) original, noyées dans la matrice (M) de densification.
Cavalier Jean Claude
Framery Eric
Jouin Jean-Marie
Parlier Michel
Ropars Marcel
Sim & Mcburney
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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