A method for densifying a fibrous texture made of ceramic material with a ceramic matrix used in injection equipment including a mold cavity defined between a mold and a counter-mold, the mold cavity defining an internal space, and a membrane comprising a stiffened zone, the membrane being intended to be placed between a fibrous texture present in the mold cavity and the counter-mold, and the stiffened zone of the membrane having a Young's modulus greater than 200 GPa, the method including placing a predensified fibrous texture in the mold cavity, the predensified fibrous texture having corrugations on the surface and placing the membrane on the predensified fibrous texture in such a way that the stiffened zone of the membrane is in contact with the peaks of the corrugations of the predensified fibrous texture; closing the injection equipment, and densifying.

Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body. Ceramic bodies produced by the methods and apparatus have smooth, non-tacky surfaces after ejection from the mold.

Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body. Ceramic bodies produced by the methods and apparatus have smooth, non-tacky surfaces after ejection from the mold

A method for producing a part made of composite material, includes obtaining a mold includes (i) a fibrous texture, (ii) a granular filtration layer located between a drainage surface of the texture and a permeable discharge surface and including a powder of filtration particles, and (iii) an element for retaining the granular layer, which element is distinct from the layer and located between the permeable discharge surface and the drainage surface, introducing a suspension including matrix particles in a liquid medium through an introduction surface of the fibrous texture that is distinct from the drainage surface, the liquid medium passing through the drainage surface, the granular filtration layer and the retention element to be discharged through the permeable discharge surface, and the matrix particles being retained in the pores of the fibrous texture by the granular filtration layer, and forming the part made of composite material by forming a matrix.