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US 2009/0092842 A1Published application
Article and method for erosion resistant composite
AssigneeUnited Technologies Corporation
InventorsKelly L. Hoover, Charles R. Watson
Life of this patent
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Abstract
A composite layer for resisting erosion includes a sacrificial layer for exposure to an erosion environment, a body layer, and an erosion resistant layer located between the sacrificial erosion layer and the body layer for protecting the body layer upon erosion of the sacrificial layer.
Claims25
A composite article for resisting erosion, comprising:
- a sacrificial layer for exposure to an erosion environment;
- a body layer;
- and
- an erosion resistant layer located between the sacrificial erosion layer and the body layer for protecting the body layer upon erosion of the sacrificial layer.
1 more element
A method of processing a composite article for resisting erosion, comprising:
- forming a body layer;
- and
- forming a sacrificial layer with an erosion resistant layer between the sacrificial erosion layer and the body layer.
A method of processing a composite article for resisting erosion, comprising:
- laying-up at least one pre-impregnated molding layer for forming a body layer;
- laying-up a pre-fabricated erosion resistant layer adjacent to the pre-impregnated molding layer;
- laying-up a pre-impregnated molding layer for forming a sacrificial layer on the erosion resistant layer such that the erosion resistant layer is between the pre-impregnated molding layer for forming the body layer and the pre-impregnated molding layer for forming the sacrificial layer;
- and
- curing the pre-impregnated molding layers to form the composite article.
2 more elements
Dependencies are inferred from the claim text.