Reinforced oxide-oxide ceramic matrix composite (CMC) component and method of making a reinforced oxide-oxide CMC component

1. A reinforced oxide-oxide CMC component for a gas turbine engine, the reinforced oxide-oxide CMC component comprising:

a composite body comprising a 2D oxide-oxide composite; and

first and second structural elements embedded in the composite body, the first and second structural elements comprising a 3D oxide-oxide composite and being completely contained within the composite body,

wherein the 2D oxide-oxide composite includes 2D woven or nonwoven oxide fibers in a first oxide matrix,

wherein the 3D oxide-oxide composite includes 3D woven oxide fibers in a second oxide matrix,

wherein the composite body has a conical shape and includes the first structural elements oriented along a direction having a circumferential component and the second structural elements spaced apart from each other and oriented along a direction having a longitudinal and radial component, and

wherein the gas turbine engine component is an exhaust cone.

2. The reinforced oxide-oxide CMC component of claim 1 being an exhaust system component.

3. The reinforced oxide-oxide CMC component of claim 1 , wherein the structural element has a shape selected from the group consisting of: a rope, a beam, a hoop, a pyramid, a rectangular prism, and a cylinder.

4. The reinforced oxide-oxide CMC component of claim 1 , wherein the composite body has a hollow shape surrounding a longitudinal axis.

5. The reinforced oxide-oxide CMC component of claim 4 , wherein the structural element is oriented within the composite body along a direction having a circumferential component.

6. The reinforced oxide-oxide CMC component of claim 4 , wherein the structural element is oriented within the composite body along a direction having a longitudinal component.

7. The reinforced oxide-oxide CMC component of claim 1 comprising a plurality of the structural elements.

8. The reinforced oxide-oxide CMC component of claim 1 , wherein the 2D woven or nonwoven oxide fibers and the 3D woven fibers comprise an oxide selected from the group consisting of: alumina, silica, and aluminum silicate.

9. The reinforced oxide-oxide CMC component of claim 8 , wherein the 2D woven or nonwoven oxide fibers and the 3D woven oxide fibers comprise the same oxide.

10. The reinforced oxide-oxide CMC component of claim 1 , wherein the first oxide matrix and the second oxide matrix comprise an oxide selected from the group consisting of: alumina, silica, aluminum silicate, and aluminum phosphate.

11. The reinforced oxide-oxide CMC component of claim 10 , wherein the first oxide matrix and the second oxide matrix comprise the same oxide.

12. The reinforced oxide-oxide CMC component of claim 1 , wherein the composite body has a first shape and wherein the structural element has a second shape different from the first shape.

13. A reinforced oxide-oxide CMC component for a gas turbine engine, the reinforced oxide-oxide CMC component comprising:

a composite body comprising a 2D oxide-oxide composite; and

first and second structural elements embedded in the composite body, and second structural elements comprising, a 3D oxide-oxide composite and being completely contained within the composite body,

wherein the 2D oxide-oxide composite includes 2D woven or nonwoven oxide fibers in a first oxide matrix,

wherein the 3D oxide-oxide composite includes 3D woven oxide fibers in a second oxide matrix, wherein the composite body has a multi-lobed annular shape and includes the first structural elements oriented along a direction having a circumferential and radial component and the second structural elements oriented along a direction having a longitudinal and radial component, the second structural elements comprising distinct second structural elements, and

wherein the gas turbine engine component is an exhaust mixer.