Carbon fiber reinforced carbon/carbon composite and method of its manufacture
AssigneeThe B. F. Goodrich Company
InventorsAfshin Bazshushtari, Edward Lee Morris, Jr.
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Abstract
Fibrous substrates for the production of carbon and/or ceramic (including mixtures of these) fiber reinforced carbon and/or ceramic (including mixtures of these) matrix composites, particularly friction discs, and to methods of manufacture of same. Offcut waste fibrous sheet material may be recycled and reformed into a web useful in the manufacture of such composites.
Claims27
A fabric sheet having first and second faces, the fabric sheet comprising at least one layer of a web of non-woven fibers consisting essentially of fibers selected from the group consisting of PAN fibers, carbon fibers, graphite fibers, ceramic fibers, precursors of carbon fibers, and mixtures of these, the web having substantially uniform randomness in direction with respect to said first face of the web and being formed of discrete staple fibers having a mean fiber length of between 10 and 25 millimeters (0.4 and 1.0 inches) when tested according to ASTM D 1440.
A fabric sheet having first and second faces, the fabric sheet comprising at least one layer of a web of nonwoven PAN fiber staple, the web having substantial uniform randomness in direction, the staple fibers having a mean length of between about 10 and about 25 millimeters (0.4 and 1.0 inches) when tested according to ASTM D 1440.
Dependencies are inferred from the claim text.