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US 10,151,207 B2Granted
High strength joints in ceramic matrix composite preforms
AssigneeROLLS-ROYCE plc
InventorAndrew Joseph Lazur
Life of this patent
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Abstract
A joint between a first preform component and a second preform component that are constructed for ultimate use in a gas turbine engine includes a plurality of extended fibers which may be integral with the first preform component and be at least partially enveloped by the second preform component. A method for making the component provides a first preform component having extended fibers integral therewith, and supplying a second preform component. The method further includes inserting the extended fibers at least partially into the second preform component body.
Claims20
A method comprising:
- providing a first ceramic matrix composite preform component having a plurality of first component fibers integral with a main body of the first ceramic matrix composite preform component, wherein a portion of the plurality of first component fibers are extended fibers that protrude away from a first end surface of the main body;
- providing a second ceramic matrix composite preform component having a plurality of second component fibers;
- and
- inserting the extended fibers of the plurality of first component fibers at least partially into the second ceramic matrix composite preform component to create a joint at an interface of the first end surface of the first ceramic matrix composite preform component and a second end surface of the second ceramic matrix composite preform component, wherein the extended fibers are woven into the first ceramic matrix composite preform component, but not woven into the second ceramic matrix composite preform component.
1 more element
A method comprising:
- providing a first ceramic matrix composite preform component having a plurality of fibers, wherein a portion of the plurality of fibers comprise extended fibers are configured to protrude away from a first end surface;
- providing a second ceramic matrix composite preform component;
- compressing a main body of the first ceramic matrix composite preform component against a main body of the second ceramic matrix composite preform component to expose the extended fibers;
- and
- penetrating at least a portion of the extended fibers through a surface of a main body of the second ceramic matrix composite preform component to create a joint at an interface of a surface of the first ceramic matrix composite preform component and the surface of the second ceramic matrix composite preform component, wherein the extended fibers are woven into the first ceramic matrix composite preform component.
2 more elements
A method comprising:
- providing a first component comprising a first end surface, a plurality of extended fibers protruding away from the first end surface, and a set of fibers in addition to the extended fibers which protrude away from the first end surface, wherein the set of fibers has a stiffness which is less than the stiffness of the extended fibers such that the set of fibers yields against a second end surface when the extended fibers are inserted into a second component, and wherein the first component is a ceramic matrix composite preform;
- providing the second component comprising the second end surface, wherein the second component is a ceramic matrix composite preform;
- and
- inserting at least a portion of the extended fibers into an internal space of the second component to create a joint at an interface of the first end surface of the first component and the second end surface of the second component, wherein the extended fibers are woven into the first component.
1 more element
Dependencies are inferred from the claim text.