Oxidation protective systems and methods of manufacture
AssigneeGoodrich Corporation
InventorsZhongfen Ding, Kevin R. Bordage, Steven Poteet
Life of this patent
Estimating the term…
Abstract
A method for forming an oxidation protection system on a carbon-carbon composite structure comprises applying a silicone-based slurry to the carbon-carbon composite structure, the silicone-based slurry including metal pigments disposed therein; applying a sealing slurry to the silicone-based slurry; and heating the carbon-carbon composite structure.
Claims19
A method for forming an oxidation protection system on a carbon-carbon composite structure, comprising:
- applying a barrier layer configured to bond with the carbon-carbon composite structure to the carbon-carbon composite structure;
- applying a silicone-based slurry to the carbon-carbon composite structure, the silicone-based slurry including metal pigments disposed therein;
- baking the applied silicone-based slurry in an inert atmosphere to form a microporous structure;
- applying a sealing slurry comprising a silicon compound, a glass mixture, a glass former, a glass modifier, and a carrier fluid to the silicone-based slurry to provide a seal for the silicone-based slurry;
- and
- heating the carbon-carbon composite structure.
A carbon-carbon composite component, comprising:
- a carbon-carbon composite structure;
- and
- an oxidation protection system disposed on the carbon-carbon composite structure, the oxidation protection system including:
- a barrier layer bonded to the carbon-carbon composite structure;
- a primary layer coupled to the composite structure, the primary layer including a silicone-based coating with metal pigments baked into a microporous framework;
- and
- a sealing layer comprising a silicon compound, a glass mixture, a glass former, a glass modifier, and a carrier fluid applied to the primary layer to provide a seal coating for the silicone-based coating, the sealing layer configured to penetrate a microporous framework of the primary layer.
An oxidation protection system for a carbon-carbon composite structure, the oxidation protection system comprising:
- a silicone-based coating configured to couple to the carbon-carbon composite structure, the silicone-based coating including metal pigments;
- and
- a sealing layer configured to couple to the silicone-based coating, the sealing layer configured to penetrate a microporous framework formed from the silicone-based coating, the sealing layer formed from a glass mixture including a first glass compound and a second glass compound, the first glass compound having a first viscosity-temperature profile that is at least two orders of magnitude below a second viscosity-temperature profile of the second glass compound.
Dependencies are inferred from the claim text.