Abstract: A method for manufacturing a C/C part includes fabricating an oxidized PAN fiber preform comprising a stack of sheets of multi-axial, non-crimp, OPF fabric. The method includes positioning the oxidized PAN fiber preform with a female forming tool, the female forming tool comprising a die recess, and forming the oxidized PAN fiber preform into a shaped body. The shaped body is removed from the female forming tool and moved into a graphite fixture for carbonization. The carbonized shaped body may also be densified into the final C/C part. The carbonized shaped body can also be placed in a perforated graphite fixture for densification and removed from the perforated graphite fixture between densification processes for machining and for facilitating further densification.

Abstract: A method for infiltrating a wear liner is disclosed herein. The method includes infiltrating a ceramic solution into a carbon/carbon (C/C) substrate, drying the C/C substrate to produce oxide particulates within the C/C substrate, and densifying the C/C substrate, including heating the C/C substrate and oxide particulates to a first temperature, wherein heating the C/C substrate during the densifying avoids promoting a reaction between the oxide particulates and the C/C substrate.

Abstract: A method of fabricating a composite component, includes forming a fibrous preform by forming a first ceramic particle layer over a first textile layer, the first ceramic particle layer having a first group of ceramic particles, disposing a second textile layer over the first ceramic particle layer, forming a second ceramic particle layer over the second textile layer, the second ceramic particle layer having a second group of ceramic particles, and disposing a third textile layer over the second ceramic particle layer. The method further includes densifying the fibrous preform.

Abstract: A fiber reinforced composite component may include interleaved fiber layers and ceramic particle layers coated with matrix material. The fiber reinforced composite component may be fabricated by forming a fibrous preform, needling the fibrous preform to form a plurality of z-direction fibers, and densifying the fibrous preform. The fibrous preform may be fabricated by forming a first ceramic particle layer over a first fiber layer, disposing a second fiber layer over the first ceramic particle layer, forming a second ceramic particle layer over the second fiber layer, and disposing a third fiber layer over the second ceramic particle layer.

Abstract: A method of fabricating a composite component, includes forming a fibrous preform by forming a first ceramic particle layer over a first textile layer, the first ceramic particle layer having a first group of ceramic particles, disposing a second textile layer over the first ceramic particle layer, forming a second ceramic particle layer over the second textile layer, the second ceramic particle layer having a second group of ceramic particles, and disposing a third textile layer over the second ceramic particle layer. The method further includes densifying the fibrous preform.

Abstract: A friction disk is provided. The friction disk includes a friction disk core, a first wear liner, and a second wear liner. The friction disk core includes at least one of a void through a full thickness of the friction disk core or a first recess in a first face of the friction disk core and a second recess of a second face of the friction disk core. The first wear liner includes a raised portion and a non-raised portion. The second wear liner includes a raised portion and a non-raised portion. The raised portion of the first wear liner is configured to fit within the at least one of the void or the first recess. The raised portion of the second wear liner is configured to fit within the at least one of the void or the second recess.

Abstract: A seal plate disposable between a pair of preforms for chemical vapor infiltration is disclosed. The seal plate may include a plurality of first channels that extend completely through the seal plate and that are located between an inner annulus and outer annulus of the seal plate. The seal plate may further include a plurality of second channels that also extend completely through the seal plate and that are located also between an inner annulus and outer annulus. The first channels may differ from the second channels in at least one respect (e.g., the first channels may be of a different width than the second channels). The first channels may provide an inlet for the chemical vapor infiltration of the preform, while the second channels may provide an outlet for the chemical vapor infiltration of the preform.

Abstract: A method of fabricating a composite component is provided. The method includes forming a fibrous preform, performing a first densification on the fibrous preform to generate a densified fibrous preform, heat treating the densified fibrous preform to form a heat treated densified fibrous preform, performing a second densification on the heat treated densified fibrous preform, and performing a silicon melt infiltration after densifying the heat treated densified fibrous preform to form the composite component.

Abstract: A friction disk is provided. The friction disk includes a friction disk core, a first wear liner located over a first surface of the friction disk core, a second wear liner located over a second first surface of the friction disk core, a washer, and a rivet. The first wear liner and the second wear liner are coupled to the friction disk core via the rivet. The washer is configured to be positioned at a distal end of the rivet, such that, in response to the distal end of the rivet being upset forming an upset head, the upset head pushes against the washer thereby spreading a load of the upset head to at least one of the first wear liner or the second wear liner.

Abstract: A method for decreasing a wear rate at a core-liner interface between a core component and a wear liner component of a core-liner brake stack configuration and increasing the life of the core component is disclosed herein. The method includes coating a surface of a substrate with a ceramic solution, wherein the substrate is a first surface of the core component or a second non-wearing surface of the wear liner component, wherein the first surface of the core component and the second non-wearing surface of the wear liner component meet to form an interface between the core component and the wear liner component, drying the coated surface to produce oxide particulates within the substrate, forming a coated brake disk by coupling the wear liner component onto the core component, wherein the coated brake disk includes the coated surface, and installing the coated brake disk in a multi-disk brake system.

Abstract: A method for infiltrating a wear liner is disclosed herein. The method includes infiltrating a ceramic solution into a carbon/carbon (C/C) substrate, drying the C/C substrate to produce oxide particulates within the C/C substrate, and densifying the C/C substrate, including heating the C/C substrate and oxide particulates to a first temperature, wherein heating the C/C substrate during the densifying avoids promoting a reaction between the oxide particulates and the C/C substrate.

Abstract: A method of fabricating a composite component is provided. The method includes forming a fibrous preform by: forming a first graphite powder and phenolic resin compound mixture layer over a first textile layer, the first graphite powder and phenolic resin compound mixture layer having a first group of graphite particles; disposing a second textile layer over the first graphite powder and phenolic resin compound mixture layer; forming a second graphite powder and phenolic resin compound mixture layer over the second textile layer, the second graphite powder and phenolic resin compound mixture layer having a second group of graphite particles; and disposing a third textile layer over the second graphite powder and phenolic resin compound mixture layer; and densifying the fibrous preform.

Abstract: 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.

Abstract: A fiber reinforced composite component may include interleaved textile layers and ceramic particle layers coated with matrix material. The fiber reinforced composite component may be fabricated by forming a fibrous preform and densifying the fibrous preform. The fibrous preform may be fabricated by forming a first ceramic particle layer over a first textile layer, disposing a second textile layer over the first ceramic particle layer, forming a second ceramic particle layer over the second textile layer, and disposing a third textile layer over the second ceramic particle layer.

Abstract: A method of fabricating a composite component, includes forming a fibrous preform by forming a first ceramic particle layer over a first textile layer, the first ceramic particle layer having a first group of ceramic particles, disposing a second textile layer over the first ceramic particle layer, forming a second ceramic particle layer over the second textile layer, the second ceramic particle layer having a second group of ceramic particles, and disposing a third textile layer over the second ceramic particle layer. The method further includes densifying the fibrous preform.

Abstract: 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.

Abstract: A seal plate disposable between a pair of preforms for chemical vapor infiltration is disclosed. The seal plate may include a plurality of first channels that extend completely through the seal plate and that are located between an inner annulus and outer annulus of the seal plate. The seal plate may further include a plurality of second channels that also extend completely through the seal plate and that are located also between an inner annulus and outer annulus. The first channels may differ from the second channels in at least one respect (e.g., the first channels may be of a different width than the second channels). The first channels may provide an inlet for the chemical vapor infiltration of the preform, while the second channels may provide an outlet for the chemical vapor infiltration of the preform.

Abstract: A fiber reinforced composite component may include interleaved textile layers and ceramic particle layers coated with matrix material. The fiber reinforced composite component may be fabricated by forming a fibrous preform and densifying the fibrous preform. The fibrous preform may be fabricated by performing a silicon melt infiltration after the densification process. A plurality of pores defined by the carbon matrix material are infiltrated with a silicon material and the fibrous preform is heated to a melt temperature until a desired percentage (e.g., at least 50%) of the carbon matrix material is converted into silicon carbide or another oxidation resistant material.

Abstract: 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.

Abstract: A seal plate disposable between a pair of preforms for chemical vapor infiltration is disclosed. The seal plate may include a plurality of first channels that extend completely through the seal plate and that are located between an inner annulus and outer annulus of the seal plate. The seal plate may further include a plurality of second channels that also extend completely through the seal plate and that are located also between an inner annulus and outer annulus. The first channels may differ from the second channels in at least one respect (e.g., the first channels may be of a different width than the second channels). The first channels may provide an inlet for the chemical vapor infiltration of the preform, while the second channels may provide an outlet for the chemical vapor infiltration of the preform.