Multidirectional reinforcement textures made of ceramic...

Details Multidirectional reinforcement textures made of ceramic... Multidirectional reinforcement textures made of ceramic...

C - Chemistry, Metallurgy

01

B

28/30, 18/576

C01B 31/30 (2006.01) C04B 35/571 (2006.01) C04B 35/622 (2006.01) C04B 35/80 (2006.01)

Patent

CA 1321063

MULTIDIRECTIONAL REINFORCEMENT TEXTURES MADE OF CERAMIC FIBERS HAVING A SILICON COMPOUND BASE ABSTRACT OF THE DISCLOSURE In order to obtain a reinforcement texture made essentially of silicon compound based ceramic fibers in the production of a composite material, the fibers are spun from a ceramic precursor in the molten state, after which they are submitted to a partial cross-linking in view of making the fibers infusible. The cross-linking of the fibers in the precursor in the infusible state is continued and, while they are maintained in the organic state, the cross-linked fibers are submitted to one or several textile-forming operations, such as weaving, layering, needling... in order to arrive at the multidirectional texture. Then, the texture is submitted to a heat treatment by pyrolysis to induce the ceramic state of the fibers and so obtain the required texture, which is essentially made of ceramic fibers having a silicon compound base, in particular silicon carbide.

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