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US 2014/0227511 A1Published application
Formulations and methods for oxidation protection of composite articles
AssigneeGoodrich Corporation
InventorAnthony M. Mazany
Life of this patent
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Abstract
A composition comprises at least one carrier fluid, precursors of a phosphate glass, and a plurality of filler nanoparticles having a mean aspect ratio of at least about 100. The composition can be applied to a composite substrate to form an oxidation protection coating including at least one phosphate glass barrier layer with a plurality of filler nanoparticles. A related method for limiting a catalytic oxidation reaction of a composite substrate is also described.
Claims34
A composition comprising:
- a carrier fluid;
- precursors of a phosphate glass;
- and
- a first plurality of filler nanoparticles having a mean aspect ratio of at least about 100.
1 more element
An article comprising:
- a carbon-carbon composite substrate;
- and
- an oxidation protection coating including a phosphate glass barrier layer with a first plurality of filler nanoparticles dispersed through at least a portion of the phosphate glass barrier layer, the first plurality of dispersed filler nanoparticles having a mean aspect ratio of at least about 100.
A method for limiting a catalytic oxidation reaction in a composite substrate, the method comprising:
- applying an oxidation inhibiting composition to a surface of a carbon-carbon composite substrate, the oxidation inhibiting composition including at least one carrier fluid, at least one precursor of a phosphate glass, and a first plurality of filler nanoparticles, the first plurality of filler nanoparticles having a mean aspect ratio of at least about 100;
- and
- heating the carbon-carbon composite substrate to a temperature sufficient to form an oxidation protection coating on the composite substrate from the applied oxidation inhibiting composition, the oxidation protection coating including at least one phosphate glass barrier layer with a first plurality of filler nanoparticles dispersed through at least a portion thereof, the first plurality of dispersed filler nanoparticles having a mean aspect ratio of at least about 100.
Dependencies are inferred from the claim text.