Oxidation protection process for porous carbon bodies

Details Oxidation protection process for porous carbon bodies Oxidation protection process for porous carbon bodies

1992-09-08

1993-05-04

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

427379, 427380, 4274197, 4283073, 4283077, 428408, B32B 900, B05D 302

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active

052080994

ABSTRACT:
A process for impregnating porous carbon bodies, in particular carbon fiber-reinforced carbon bodies, protects against oxidation by atmospheric oxygen. The open pores present in the carbon body are lined both in the interior and on the surfaces with a low viscosity gel and/or sol, formed from refractory and/or non-combustible inorganic compounds, as antioxidants. The antioxidant applied has a layer thickness of about 1 micrometer and is highly elastic. It adapts very well to the thermal expansions of the carbon body and is resistant to heat up to above 1000.degree. C.

REFERENCES:
patent: 3706596 (1972-12-01), Wallauch
patent: 4461806 (1984-07-01), Ikeda et al.
patent: 4500602 (1985-02-01), Patten et al.
patent: 4585675 (1986-04-01), Shuford
patent: 4857395 (1989-08-01), Benton et al.
patent: 4863773 (1989-09-01), Rousseau et al.

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