公开(公告)号：US20210046671A1

公开(公告)日：2021-02-18

申请号：US17046958

申请日：2019-04-04

Applicant: SAFRAN CERAMICS

Inventor： Eric PHILIPPE ,  Paul CARMINATI ,  Medhy Damien BOUNIA ,  Bertrand DESJOYEAUX

IPC: B28B1/26 ,  B28B17/00 ,  C04B35/80 ,  C04B35/628

Abstract: A process for manufacturing a composite part includes arranging a fibrous preform in a mold including an impregnation chamber which includes in its lower part a filter by making a first face of the preform rest on the filter, the impregnation chamber being closed by a flexible membrane placed opposite a second face of the preform, the membrane separating the impregnation chamber from a compaction chamber. The process further includes injecting a compression fluid into the compaction chamber so as to apply a first pressure on the membrane and injecting a slurry including ceramic particles into the impregnation chamber with a second pressure while maintaining the injection of the compression fluid, the second injection pressure of the slurry being lower than the first pressure on the membrane.

公开(公告)号：US20240001590A1

公开(公告)日：2024-01-04

申请号：US18343277

申请日：2023-06-28

Applicant: SAFRAN NACELLES ,  SAFRAN CERAMICS

Inventor： Bertrand Léon Marie DESJOYEAUX ,  Nicolas EBERLING-FUX ,  Paul CARMINATI

IPC: B28B23/02 ,  B28B13/02 ,  B28B11/04

CPC classification number: B28B23/02 ,  B28B13/029 ,  B28B11/049 ,  B28B11/044 ,  D06B5/22

Abstract: A tooling for infiltrating a slurry into a textile preform includes a mold which includes an impregnation chamber including, on one of its face, an element for filtering a liquid phase of the slurry intended to receive a first face of a textile preform, the impregnation chamber being closed by a counter-mold located facing the filtration element; and an output vent present on the mold and configured to eliminate a filtrate of the filtration element at an elimination pressure, wherein the tooling also includes a circulation system for a slurry including an input port and an output port, the circulation system being configured to circulate the slurry in the impregnation chamber from the input port to the output port at a circulation pressure greater than the elimination pressure.

公开(公告)号：US20250100183A1

公开(公告)日：2025-03-27

申请号：US18852931

申请日：2023-03-28

Applicant: SAFRAN CERAMICS

Inventor： Nicolas EBERLING-FUX ,  Clément Marie Benoît ROUSSILLE ,  Mélissa BAZERQUE ,  Paul CARMINATI

IPC: B28B1/26 ,  B28B23/00 ,  C04B35/565

Abstract: 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.

公开(公告)号：US20200339480A1

公开(公告)日：2020-10-29

申请号：US16958558

申请日：2018-12-21

Applicant: SAFRAN CERAMICS

Inventor： Eric PHILIPPE ,  Medhy Damien BOUNIA ,  Aurélia CLERAMBOURG ,  Paul CARMINATI

IPC: C04B35/80 ,  B28B1/24 ,  C04B35/628 ,  C04B35/64

Abstract: A process for manufacturing a composite material part includes formation of a fibrous texture from refractory ceramic fibres, placement of the fibrous texture in a mould with interposition of a filtration layer between the fibrous texture and a discharge port, the filtration layer including a partially densified fibrous structure, pressure injection of a slurry containing a powder of refractory ceramic particles into the fibrous texture, drainage by the filtration layer of the slurry solvent having passed through the fibrous texture and retention of the powder of refractory ceramic particles within the texture by the filtration layer to obtain a fibrous preform including the fibrous texture filled with refractory ceramic particles and the filtration layer, heat treatment of the refractory ceramic particles present in the fibrous texture of the preform to form a composite material part including the fibrous texture densified by a refractory ceramic matrix and the filtration layer.

公开(公告)号：US20190382318A1

公开(公告)日：2019-12-19

申请号：US16464039

申请日：2017-11-22

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Emilien BUET ,  Paul CARMINATI ,  Sylvain Lucien JACQUES ,  Francis REBILLAT

IPC: C04B35/515 ,  C04B35/628 ,  C04B35/80

Abstract: A composite material part includes fiber reinforcement made of carbon or ceramic yarns and a matrix that is mostly ceramic, the part further including a first interphase layer covering the yarns and present between the yarns and the matrix, the first interphase layer being a layer of boron nitride doped with aluminum and presenting an atom content of aluminum lying in the range 5% to 15%.