Composites and methods of forming composites having ceramic inserts

1. A brake disk, comprising:

a first friction disk formed of at least one of a carbon fiber-ceramic matrix composite material or a carbon fiber-carbon matrix composite material, wherein a first surface of the first friction disk defines a first recess, the first surface extending from an inner diameter to an outer diameter of the first friction disk;

a first ceramic insert comprising ceramic powder located in the first recess; and

a second ceramic insert located in a second recess of the first friction disk, wherein the second recess is defined by a second surface of the first friction disk, the second surface being oriented away from the first surface,

wherein the first friction disk comprises at least one of a rotor core or a stator core.

2. The brake disk of claim 1 , wherein the ceramic powder comprises boron carbide.

3. The brake disk of claim 1 , wherein the first ceramic insert further comprises chopped fibers.

4. The brake disk of claim 1 , further comprising a wear liner coupled to the first friction disk.

5. A method of making a friction disk, comprising:

densifying a fibrous preform to form a densified fibrous preform;

forming a plurality of first recesses in a first surface of the densified fibrous preform;

depositing a ceramic powder in the plurality of first recesses; and

depositing carbon around the ceramic powder in the plurality of first recesses using chemical vapor infiltration.

6. The method of claim 5 , further comprising performing a silicon melt infiltration.

7. The method of claim 5 , further comprising:

forming a plurality of second recesses in a second surface of the densified fibrous preform; and

depositing ceramic powder in the plurality of second recesses.

8. The method of claim 5 , wherein the densified fibrous preform comprises carbon fiber-carbon matrix composite material.

9. The method of claim 5 , wherein the ceramic powder in the plurality of first recesses comprises boron carbide.

10. The method of claim 5 , further comprising depositing chopped fibers in the plurality of first recesses.

11. A method of making a brake disk, comprising:

forming a first friction disk by:

forming a plurality of first recesses in a first surface of a first fibrous preform;

depositing a ceramic powder in the plurality of first recesses; and

depositing carbon around the ceramic powder in the plurality of first recesses using chemical vapor infiltration.

12. The method of claim 11 , further comprising coupling a first wear liner over the first surface of the first friction disk.

13. The method of claim 12 , wherein forming the first friction disk further comprises:

forming a plurality of second recesses in a second surface of the first fibrous preform, the second surface being axially opposite the first surface;

depositing ceramic powder in the plurality of second recesses; and

depositing carbon around the ceramic powder in the plurality of second recesses using chemical vapor infiltration.

14. The method of claim 11 , further comprising depositing chopped fibers in the plurality of first recesses.

15. The method of claim 14 , further comprising densifying the first fibrous preform prior to forming the plurality of first recesses.

16. The method of claim 11 , further comprising:

forming a second friction disk by:

forming a plurality of second recesses in a non-wear surface of a second fibrous preform;

depositing ceramic powder in the plurality of second recesses; and

depositing carbon around the ceramic powder in the plurality of second recesses using chemical vapor infiltration; and

coupling the second friction disk to the first friction disk with the non-wear surface of the second friction disk oriented toward the first surface of the first friction disk.