Three dimensional woven fabrics of pitch-derived carbon fibers

Details Three dimensional woven fabrics of pitch-derived carbon fibers Three dimensional woven fabrics of pitch-derived carbon fibers

1989-03-06

1990-12-04

Chaudhuri, Olik

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234472, 4234474, 4234476, 264292, 87 9, D01F 912

Patent

active

049752626

ABSTRACT:
Three dimensional woven fabrics containing bent parts of a small radius of curvature which bent parts comprise easily graphitized pitch-derived carbon fibers obtained by thermosetting treatment and light carbonization treatment carried out after melt-spinning of high softening point pitch and having a tensile strength of 15 250 Kgf/mm.sup.2, an elongation of 0.5-8.0% and modulus of elasticity of 400-40,000 Kgf/mm.sup.2 and a capability of increasing both of their tensile strength and modulus of elasticity to 1.1 times or greater than the above-mentioned values by additional heat treatment carried out under a relaxed state to have a tensile strength of 150 Kgf/mm.sup.2 or greater and a modulus of elasticity of 40,000 Kgf/mm.sup.2 or greater. They are superior in abrasion resistance, flexion-resisting property and scratch-resisting property and useful as one component of fiber composite materials in reinforcing plastics, metals, cements, ceramics, carbon materials, etc.

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patent: 4519290 (1985-05-01), Inman et al.
patent: 4576810 (1986-03-01), Redick
patent: 4589974 (1986-05-01), Izumi

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