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US 11,441,778 B2Granted
Article with cooling holes and method of forming the same
AssigneeRaytheon Technologies Corporation
InventorsMichael R. Kracum, David C. Jarmon
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Abstract
A method of making an ceramic article according to an exemplary embodiment of this disclosure, among other possible things includes arranging fiber plies into a preform, inserting one or more sacrificial springs to the preform, infiltrating the preform with a matrix material to form an article, and thermally degrading the one or more sacrificial springs to form cooling holes. A ceramic article and a gas turbine engine component are also disclosed.
Claims20
A method of making a ceramic article, comprising:
- arranging fiber plies to form a preform;
- after forming the preform, inserting one or more sacrificial springs to the preform;
- infiltrating the preform with a matrix material to form an article;
- and
- thermally degrading the one or more sacrificial springs to form cooling holes.
2 more elements
Dependencies are inferred from the claim text.