Selectively modified carbon-carbon composites

Details Selectively modified carbon-carbon composites Selectively modified carbon-carbon composites

1976-07-27

1978-12-26

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

102105, 139425R, 244117A, 427228, 428259, 428408, D32B 700

Patent

active

041317084

ABSTRACT:
The ablative response at predetermined locations in a carbon-carbon reinforced composite material are selectively modified by one or more implants of a compatible, non-carbon material disposed at selected sites in the material. The implants of non-carbon material, which should have a melting point below the sublimation temperature of the surrounding carbon matrix and thermal expansibility having a force below the strength of the surrounding carbon matrix, preferably are arranged essentially parallel to one another at selected axial sites in the direction of expected thermal flux.

REFERENCES:
patent: 3498929 (1970-03-01), Accountius
patent: 3556922 (1971-01-01), Green et al.
patent: 3672936 (1972-06-01), Ehrenrich et al.
patent: 3749138 (1973-07-01), Rheaume et al.
patent: 3900675 (1975-08-01), Olcott
patent: 3904464 (1975-09-01), King
patent: 3955602 (1976-05-01), King
patent: 3991248 (1976-11-01), Bauer

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