Process for the manufacture of multidirectional reinforcement te

Details Process for the manufacture of multidirectional reinforcement te Process for the manufacture of multidirectional reinforcement te

1989-10-03

1992-07-07

Bell, James J.

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By means inverting mold

811551, 28112, 428300, C01B 3130

Patent

active

051281171

ABSTRACT:
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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