▎ 摘　　要

NOVELTY - Manufacturing composite fiber preform for disc brakes, involves forming an interlayer on a carbon fiber fabric to form a composite fiber fabric, where the interlayer comprises a binder e.g. resin, thermoset resin, or phenolic resin. The fiber fabric is wound around a core to form composite fiber preform comprising a set of layers defining an annulus extending along a central axis. The preform is densified via chemical vapor deposition, where a portion of carbon fibers of the fabric having an in-plane orientation is ≥ 50%. The out-of-plane orientations are parallel with a radial orientation of the preform. The binder comprises many nanoparticles. The nanoparticles comprise at least one of a carbon nanotube, a carbon nanofiber, or a graphene nanoplatelet. USE - The method is useful for manufacturing composite fiber preform for disc brakes (claimed), preferably carbon-carbon composite materials e.g. aircraft brake pads or discs made of carbon-carbon composite materials used in high temperature applications, and in commercial and military aircraft e.g. friction brake materials. ADVANTAGE - The method: utilizes consolidating the interlayer and the carbon fiber fabric to increase a carbon fiber volume fraction of the composite fiber preform via controlling the tension of the composite carbon fiber fabric, where controlling the tension of the composite carbon fiber fabric comprises controlling a percent of a carbon fiber volume relative to a total volume of the composite fiber preform of 5-35%; and provides composite fiber preform which can be densified without the use of chemical vapor deposition/chemical vapor infiltration, vacuum/pressure infiltration, or resin transfer molding, to infiltrate the porous preform with carbon fibers. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a composite fiber preform comprising many carbon fiber fabric layers wrapped circumferentially about a longitudinal axis and extending in an axial direction parallel with the longitudinal axis. DESCRIPTION OF DRAWING(S) - The figure illustrates conceptual view of wheel and brake assembly that may include at least one of brake discs. 10Wheel and brake assembly 12Wheel 14Actuator assembly 16Brake stack 18Axle