Oxidative resistance of carbon-carbon composites for piston seals in a gas turbine engine
AssigneeRtx Corporation
InventorsXiaomei Fang, Calvin Jay Winder, Benjamin Schafer
Life of this patent
Estimating the term…
Abstract
A process of treating a carbon-carbon composite material including modifying a surface of the carbon-carbon composite material to increase a hydrophilic surface functionality; applying a plasma surface treatment to the carbon-carbon composite material; infiltrating the carbon-carbon composite with an oxidation inhibiting composition; and heating the carbon-carbon composite at a predetermined temperature sufficient to form a deposit from the oxidation inhibiting composition in at least some pores of the carbon-carbon composite.
Claims20
A process of treating a carbon-carbon composite material comprising:
- modifying a surface of the carbon-carbon composite material to increase a hydrophilic surface functionality;
- applying a plasma surface treatment to the carbon-carbon composite material;
- infiltrating the carbon-carbon composite with an oxidation inhibiting composition;
- and
- heating the carbon-carbon composite at a predetermined temperature sufficient to form a deposit from the oxidation inhibiting composition in at least some pores of the carbon-carbon composite.
A carbon-carbon composite material treated with a plasma surface treatment prior to applying an oxidation inhibiting composition, the treatment comprising:
- modifying a surface of the carbon-carbon composite material to increase a hydrophilic surface functionality;
- applying a plasma surface treatment to the carbon-carbon composite material;
- infiltrating the carbon-carbon composite with an oxidation inhibiting composition;
- and
- heating the carbon-carbon composite at a predetermined temperature sufficient to form a deposit from the oxidation inhibiting composition in at least some pores of the carbon-carbon composite.
A process for treating a gas turbine engine component made from a carbon-carbon composite material comprising:
- modifying a surface of the carbon-carbon composite material to increase a hydrophilic surface functionality;
- applying a plasma surface treatment to the carbon-carbon composite material;
- infiltrating the carbon-carbon composite component with an oxidation inhibiting composition;
- and
- heating the carbon-carbon composite component at a predetermined temperature sufficient to form a deposit from the oxidation inhibiting composition in at least some pores of the carbon-carbon composite component.
Dependencies are inferred from the claim text.