Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1987-12-02
1989-07-11
Doll, John
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
423448, 423449, 423461, 87 1, 87 7, 87 9, 87 34, C01B 3102
Patent
active
048470635
ABSTRACT:
Method of forming a hollow, carbon/carbon composite article around an axis of symmetry, in which method a heat refractory mandrel is shaped to provide a desired inner surface configuration and tolerances of the article, and one or more plies of thermally stable carbon filaments are braided over the surface of the mandrel. The filaments have a diameter of substantially not greater than about 6 microns and a modulus of elasticity of substantially not less than about 45.times.10.sup.6 psi. The plies are then impregnated with a carbonizable liquid impregnant, and the assembly of impregnated plies and mandrel is heat treated so as to carbonize the impregnant. The resulting composite article has a high translation of the original strength of the filaments and has an inner surface defined by the outer surface of the mandrel.
REFERENCES:
patent: 3367812 (1968-02-01), Watts
patent: 3583275 (1971-06-01), Duflos
patent: 3917884 (1975-11-01), Jahn
patent: 4039341 (1977-08-01), Cooper et al.
patent: 4198382 (1980-04-01), Matsui
patent: 4278729 (1981-07-01), Gibson et al.
patent: 4495231 (1985-01-01), Laskaris et al.
patent: 4519290 (1985-05-01), Inman et al.
patent: 4684567 (1987-08-01), Okamoto et al.
Doll John
Fiber Materials, Inc.
Kunemund Robert M.
LandOfFree
Hollow composite body having an axis of symmetry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hollow composite body having an axis of symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hollow composite body having an axis of symmetry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-436054