C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/85
C04B 35/80 (2006.01) C04B 35/565 (2006.01) C04B 35/628 (2006.01)
Patent
CA 2275130
The material comprises fiber reinforcement made of fibers that are essentially constituted by silicon carbide, and an interphase layer between the fibers of the reinforcement and the matrix. The reinforcing fibers are long fibers containing less than 5% atomic residual oxygen and they have a modulus greater than 250 GPa, and the interphase layer is strongly bonded to the fibers and to the matrix such that the shear breaking strengths within the interphase layer and at the fiber-interphase bonds and at the interphase-matrix bonds are greater than the shear breaking strengths encountered within the matrix.
Le matériau comprend un renfort fibreux en fibres constituées essentiellement de carbure de silicium, et une couche d'interphase entre les fibres du renfort et la matrice. Les fibres de renfort sont des fibres longues qui contiennent moins de 5 % at. d'oxygène résiduel et ont un module supérieur à 250 GPa, et la couche d'interphase est fortement liée aux fibres et à la matrice de sorte que les résistances à la rupture par cisaillement au sein de la couche d'interphase et au niveau des liaisons fibres-interphase et interphase-matrice sont supérieures à celles rencontrées au sein de la matrice.
Bertrand Sebastien
Caillaud Alain
Charvet Jean-Luc
Goujard Stephane
Pailler Rene
Sim & Mcburney
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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