RAPPs comprise a housing, a swash plate with an inclined surface, and a rotor assembly positioned adjacent the swash plate. The swash plate and/or the inclined surface are ceramic. The rotor assembly comprises a rotor-drum having at least one cylinder bore having a piston disposed therein, wherein the piston has a ball-shaped end. A slipper is interposed between the swash plate and the rotor-drum, and includes a socket joint for accommodating the piston ball-shaped end therein. A plastic material may be disposed within the socket joint. The slipper has a ceramic interface surface in contact with the inclined surface. A stator plate is positioned in the housing, and a rotor plate is interposed between the stator plate and the rotor-drum. The stator plate has a ceramic interface surface in contact with the rotor plate. The rotor plate has a ceramic interface surface in contact with the stator plate.

A tooling assembly suitable for use in infiltrating a fibrous preform comprises an outer tooling fixture and an inner tooling fixture. The outer tooling fixture comprises a first portion removably attached to a second portion, and a first pair of oppositely disposed windows defined by the first portion and the second portion. Each of the first portion and the second portion comprise a base with a recess. The inner tooling fixture comprises a body defined by at least one portion, the body configured to at least partially surround the fibrous preform, a plurality of holes extending through a thickness of the at least one portion, each hole of the plurality of holes having a length (L) and a diameter (D), and a first neck region engageable with a recess of the first portion or the second portion.

A tooling assembly suitable for use in infiltrating a fibrous preform comprises an outer tooling fixture and an inner tooling fixture. The outer tooling fixture comprises a first portion removably attached to a second portion, and a first pair of oppositely disposed windows defined by the first portion and the second portion. Each of the first portion and the second portion comprise a base with a recess. The inner tooling fixture comprises a body defined by at least one portion, the body configured to at least partially surround the fibrous preform, a plurality of holes extending through a thickness of the at least one portion, each hole of the plurality of holes having a length (L) and a diameter (D), and a first neck region engageable with a recess of the first portion or the second portion.