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US 2011/0215502 A1Published application
Ceramic composite with integrated compliance/wear layer
AssigneeGeneral Electric Company
InventorsDouglas Melton CARPER, Suresh SUBRAMANIAN
Life of this patent
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Abstract
The integral layer provides a ductile interface for attachment locations of a turbine engine component where a metallic surface is adjacent the attachment location. The ductile layer provides a favorable load distribution through the composite at the attachment location, and eliminates the need for a metallic shim.
Claims18
A method of manufacturing a ceramic matrix composite aircraft engine component, the method comprising the steps of:
- providing a plurality of unidirectional prepreg ceramic fiber plies, the plies comprising coated prepreg ceramic fiber tows;
- laying up the plurality of prepreg ceramic fiber plies in a preselected arrangement to form a component shape;
- overlying at least a portion of the outside surface of the component shape with at least one matrix ply;
- heating the component shape to form a preform;
- infiltrating the preform with at least silicon to form a ceramic matrix composite component, wherein the component includes an attachment area defining a surface of the component;
- and
- forming an interface layer on the attachment area, wherein the interface layer comprises silicon;
- and
- integrating the interface layer and the attachment.
6 more elements
A method of manufacturing a ceramic matrix composite aircraft engine component, the method comprising the steps of:
- laying up a plurality of prepreg ceramic fiber plies in a preselected arrangement to form a component shape;
- overlying at least a portion of the outside surface of the component shape with at least one matrix ply;
- heating the component shape to form a preform;
- infiltrating the preform with a carbon containing slurry;
- infiltrating the preform with silicon and
- forming an interface layer on an attachment area of the preform to form a ceramic matrix composite aircraft engine component;
- wherein the interface layer comprises silicon.
4 more elements
Dependencies are inferred from the claim text.