High temperature oxidation protection for composites
AssigneeGoodrich Corporation
InventorsAnthony M. Mazany, Steven A. Poteet
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Abstract
The present disclosure provides a method for coating a composite structure, comprising forming a first slurry by combining a first pre-slurry composition with a first carrier fluid, applying the first slurry on a surface of the composite structure, and heating the composite structure to a temperature sufficient to form a base layer on the composite structure. The first pre-slurry composition may comprise a first phosphate glass composition and a low coefficient of thermal expansion material, wherein the low coefficient of thermal expansion material is a material with a coefficient of thermal expansion of less than 10×10−6° C.−1.
Claims17
A method for coating a composite structure, comprising:
- forming a first slurry by combining a first pre-slurry composition with a first carrier fluid, wherein the first pre-slurry composition comprises a first phosphate glass composition and a low coefficient of thermal expansion material, wherein the low coefficient of thermal expansion material is a material comprising beta-spodumene with a coefficient of thermal expansion of less than 10×10−6° C.−1;
- applying the first slurry on a surface of the composite structure;
- and
- heating the composite structure to a temperature sufficient to form a base layer on the composite structure.
A slurry for coating a composite structure, comprising:
- a carrier fluid;
- and
- a first pre-slurry composition comprising a first phosphate glass composition and a low coefficient of thermal expansion material,
- wherein the low coefficient of thermal expansion material is a material comprising beta-spodumene with a coefficient of thermal expansion of less than 10×10−6° C.−1.
An article comprising:
- a carbon-carbon composite structure;
- and
- an oxidation protection composition including a base layer disposed on an outer surface of the carbon-carbon composite structure,
- wherein the base layer comprises a first pre-slurry composition having a low coefficient of thermal expansion material, wherein the low coefficient of thermal expansion material is a material comprising beta-spodumene with a coefficient of thermal expansion of less than 10×10−6° C.−1.
Dependencies are inferred from the claim text.