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US 9,291,060 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 is disclosed. A plurality of extended fibers 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 is also disclosed. In one embodiment the method 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.
Claims19
An apparatus comprising:
- a gas turbine engine component construction suitable for operational use in an operating environment associated with a gas turbine engine, the component construction including a first ceramic matrix composite preform component comprising a first end surface and a second ceramic matrix composite preform component comprising a second end surface, the first composite preform component including a plurality of extended fibers having an extended portion that protrudes away from the first end surface, the extended fibers received within an internal space of a body of the second composite preform component such that the body of the second composite preform component at least partially envelopes the extended portion of the plurality of extended fibers and creates a joint between the first composite preform component and the second composite preform component at an interface of the first end surface and the second end surface;
- and wherein the extended fibers are woven into the first ceramic matrix composite preform but not woven into the second ceramic matrix composite preform.
An apparatus comprising:
- a gas turbine engine ceramic matrix composite component for a gas turbine engine, comprising a first ceramic preform comprising a first end surface and a second ceramic preform comprising a second end surface,
- wherein the first ceramic preform includes a plurality of first extended fibers having an extended portion that protrudes away from the first end surface, the first extended fibers being received within an internal space of a body of the second ceramic preform, and wherein the first extended fibers are woven into the first ceramic preform but not woven into the second ceramic preform;
- wherein the second ceramic preform includes a plurality of second extended fibers having an extended portion that protrudes away from the second end surface, the second extended fibers being received within an internal space of a body of the first ceramic preform, and wherein the second extended fibers are woven into the second ceramic preform but not woven into the first ceramic preform;
- and
- wherein an interface of the first end surface and the second end surface forms a joint between the first ceramic preform and the second ceramic preform.
2 more elements
An apparatus comprising:
- a gas turbine engine ceramic matrix composite component, comprising a first ceramic preform arranged along a first longitudinal axis and comprising a first end surface and a plurality of extended fibers having an extended portion that protrudes away from the first end surface, and a second ceramic preform arranged along a second longitudinal axis and comprising a second end surface,
- wherein the extended fibers are received within an internal space of a body of the second ceramic preform, wherein a joint is created between the first ceramic preform and the second ceramic preform at an interface of the first end surface and the second end surface, and wherein the extended fibers are woven into the first ceramic preform, but not woven into the body of the second ceramic preform;
- and
- wherein the first longitudinal axis passes through the first end surface and the second longitudinal axis passes through the second end surface.
1 more element
Dependencies are inferred from the claim text.