Composites and methods of forming composites having friction and wear plugs
A friction disk may comprise a first wear surface formed from a carbon fiber-carbon matrix composite material. A wear plug may be located in an opening defined by the carbon fiber-carbon matrix composite material. The wear plug may extend axially from the wear surface. The wear plug may comprise a rod or a particulate.
1. A friction disk, comprising:
a first wear surface formed from a carbon fiber-carbon matrix composite material; and
a first wear plug located in a first opening defined by the carbon fiber-carbon matrix composite material, wherein the first wear plug extends axially from the first wear surface, and wherein the first wear plug includes at least one of:
a graphite rod, and
a first wear particulate and a binder, the first wear particulate including graphite powder, a mixture of graphite powder and ceramic powder, or carbon pitch particulate.
2. The friction disk of claim 1 , wherein the graphite rod comprises ceramic particles.
3. The friction disk of claim 1 , wherein the first wear plug comprises carbon pitch.
4. The friction disk of claim 1 , wherein an axial length of the first wear plug is less than an axial thickness of the carbon fiber-carbon matrix composite material.
5. The friction disk of claim 4 , further comprising:
a second wear surface formed by the carbon fiber-carbon matrix composite material, wherein the second wear surface is axially opposite the first wear surface; and
a second wear plug located in a second opening defined by the carbon fiber-carbon matrix composite material, wherein the second wear plug extends axially from the second wear surface.
6. The friction disk of claim 1 , wherein the first wear plug is located halfway between an outer diameter and an inner diameter of the friction disk.
7. The friction disk of claim 1 , wherein the first wear plug extends completely through the carbon fiber-carbon matrix composite material.
8. A friction disk, comprising:
a first wear surface formed by a carbon fiber-carbon matrix composite material;
a first wear particulate located in a first opening defined by the carbon fiber-carbon matrix composite material, the first wear particulate including a mixture of graphite powder and ceramic powder; and
a binder located in the first opening.
9. The friction disk of claim 8 , wherein the first wear particulate comprises graphite powder.
10. The friction disk of claim 8 , wherein the first wear particulate comprises carbon pitch particulate.
11. The friction disk of claim 8 , wherein an axial depth of the first opening is less than an axial thickness of the carbon fiber-carbon matrix composite material.
12. The friction disk of claim 11 , further comprising:
a second wear surface formed from the carbon fiber-carbon matrix composite material, wherein the second wear surface is axially opposite the first wear surface;
a second opening defined by the carbon fiber-carbon matrix composite material and extending axially from the second wear surface; and
a second wear particulate located in the second opening.