公开(公告)号：US11530727B2

公开(公告)日：2022-12-20

申请号：US16756335

申请日：2018-10-16

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Eric Bouillon ,  Arnaud Delehouze ,  Amandine Lorriaux ,  Laurence Maille

IPC: C23C16/04 ,  C23C16/26 ,  F16D69/02 ,  C04B35/628 ,  C04B35/80 ,  C23C16/32 ,  C23C16/40 ,  C23C16/455 ,  C23C16/56 ,  F16D65/12

Abstract: A process for manufacturing a friction component made of composite material, includes the densification of a fibrous preform of carbon yarns by a matrix including at least pyrocarbon and at least one ZrOxCy phase, where 1≤x≤2 and 0≤y≤1, the matrix being formed by chemical vapor infiltration at least from a first gaseous precursor of pyrocarbon and a second gaseous precursor including zirconium, the second precursor being an alcohol or a C1 to C6 polyalcohol modified by linking the oxygen atom of at least one alcohol function to a group of formula —Zr—R3, the substituents R being identical or different, and R being selected from: —H, C1 to C5 carbon chains and halogen atoms.

公开(公告)号：US10988417B2

公开(公告)日：2021-04-27

申请号：US16099922

申请日：2017-05-11

Applicant: SAFRAN CERAMICS

Inventor： Eric Bouillon ,  Aurélia Clerambourg ,  Lisa Pin ,  David Marsal

IPC: C04B35/185 ,  C04B35/16 ,  C04B35/80 ,  C04B35/624 ,  C04B35/628 ,  F01D25/00 ,  F23R3/00 ,  F01D5/28 ,  F01D9/04 ,  C04B35/64

Abstract: A part made of composite material includes fiber reinforcement including silicon carbide fibers presenting an oxygen content less than or equal to 1 % in atomic percentage; and a matrix present in the pores of the fiber reinforcement and including at least one sintered silicate phase including at least one rare earth silicate, mullite, or a mixture of mullite and of at least one rare earth silicate, the matrix including at least a first phase including mullite and a second phase, different from the first phase, including at least one rare earth silicate.

公开(公告)号：US12110256B2

公开(公告)日：2024-10-08

申请号：US17265359

申请日：2019-07-23

Applicant: SAFRAN CERAMICS

Inventor： Eric Bouillon ,  Eric Philippe ,  Gildas Garnier ,  Maxime François Roger Carlin ,  Michael Verrilli

IPC: C04B35/80 ,  C04B35/563 ,  C04B35/565 ,  C04B35/571 ,  C04B35/58 ,  C04B35/584 ,  C04B35/628 ,  F01D5/28

CPC classification number: C04B35/80 ,  C04B35/563 ,  C04B35/565 ,  C04B35/571 ,  C04B35/58092 ,  C04B35/584 ,  C04B35/62863 ,  F01D5/284 ,  C04B2235/5244 ,  C04B2235/5268 ,  C04B2235/616 ,  F05D2300/6033

Abstract: A process for manufacturing a part made of composite material with a matrix at least predominantly made of ceramic includes producing a fibrous structure by three-dimensional or multilayer weaving; shaping the fibrous structure to form a fibrous preform core; depositing an interphase on the fibers of the preform core; consolidating the preform core by partial densification of the core including the formation of a matrix phase by chemical vapor infiltration or by a liquid process; depositing a powder of ceramic particles in the porosity of the preform core; draping one or more layers of pre-impregnated non-woven fibers over all or part of the outer surface of the preform core; heat treatment of the preform core and of the pre-impregnated layer(s) to form a hybrid fibrous preform; further densifying by infiltration of the hybrid fibrous preform with an infiltration composition containing at least silicon to obtain a ceramic matrix composite part.

公开(公告)号：US11959440B2

公开(公告)日：2024-04-16

申请号：US17631281

申请日：2020-08-12

Applicant: SAFRAN CERAMICS

Inventor： Eric Bouillon ,  Eric Conete

IPC: F02K1/82 ,  F02C7/24

CPC classification number: F02K1/827 ,  F02C7/24 ,  F05D2220/323 ,  F05D2230/21 ,  F05D2240/128 ,  F05D2250/191 ,  F05D2260/963 ,  F05D2300/603

Abstract: An annular or semi-annular acoustic attenuation structure includes an inner skin and an outer skin, defining between them an annular or semi-annular volume, and a plurality of partitions extending in the space in a radial direction perpendicular to the inner and outer skins and in a circumferential direction. The inner and outer skins and the partitions are made of composite material including a fibrous reinforcement densified by a matrix. The fibrous reinforcement of each partition includes yarns or fibers extending into the fibrous reinforcement of at least one of the inner or outer skins.

公开(公告)号：US20210323295A1

公开(公告)日：2021-10-21

申请号：US17260006

申请日：2019-07-16

Applicant: SAFRAN CERAMICS

Inventor： Aurélia Clerambourg ,  Eric Bouillon ,  Eric Philippe

IPC: B32B37/14 ,  B32B5/02 ,  B32B3/12 ,  G10K11/168 ,  G10K11/172 ,  B32B7/12

Abstract: A method for manufacturing a composite panel is described. The method includes producing a first wall, a second wall, a third wall and a fourth wall from composite materials including an oxide matrix and long oxide fibres; from the first and second walls, producing a cellular core including a plurality of cells, each cell including a first end and an opposing second end, covering the first and second ends of the cells of the cellular core with the third wall and the fourth wall, respectively, so as to close the ends of said cells.

公开(公告)号：US11932942B2

公开(公告)日：2024-03-19

申请号：US17842205

申请日：2022-06-16

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Arnaud Delehouze ,  Eric Bouillon ,  Adrien Delcamp ,  Cédric Descamps

IPC: C23C16/54 ,  C04B35/628 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32 ,  C23C16/34 ,  C23C16/46

CPC classification number: C23C16/545 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/80 ,  C23C16/26 ,  C23C16/325 ,  C23C16/342 ,  C23C16/46 ,  C04B2235/5244 ,  C04B2235/5248

Abstract: A process for depositing a coating on a continuous fibre of carbon or silicon carbide from a precursor of the coating, includes heating a segment of the fibre in the presence of the coating precursor in a microwave field so as to bring the surface of the segment to a temperature allowing the coating to form on the segment from the coating precursor, wherein the segment of fibre is in the presence of a supercritical phase of the precursor of the coating in the reactor and the coating is formed by supercritical phase chemical deposition in the reactor.

公开(公告)号：US11643936B1

公开(公告)日：2023-05-09

申请号：US17914676

申请日：2021-03-22

Applicant: SAFRAN CERAMICS

Inventor： Matthieu Arnaud Gimat ,  Eric Bouillon ,  Maxime François Roger Carlin

IPC: F01D5/18 ,  F01D5/28

CPC classification number: F01D5/282 ,  F01D5/18

Abstract: A turbine stator blade made of ceramic matrix composite material includes a hollow blade profile and has a trailing edge and a leading edge, the blade including a first portion including an extrados face and a second portion distinct from the first portion including an intrados face, the first and second portions being connected to one another by a connection interface present at least on the trailing edge or leading edge, the connecting interface including a region of overlap between the first and second portions present on at least one longitudinal end of the blade profile and intended to be present outside a flow path of a gas stream of the turbine, the blade also including a platform present at a longitudinal end of the blade profile and that includes a first portion integral with the extrados face and a second part integral with the intrados face.

公开(公告)号：US11014856B2

公开(公告)日：2021-05-25

申请号：US16956068

申请日：2018-12-20

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Arnaud Delehouze ,  Eric Bouillon ,  Yann Lepetitcorps

IPC: C04B35/657 ,  B28B1/00 ,  B28B3/00 ,  C04B35/573 ,  C04B35/628 ,  C04B35/632 ,  C04B35/638 ,  C04B35/80

Abstract: A process for manufacturing a composite material part including a particulate reinforcement densified by a ceramic matrix, the process including: formation of a blank of the part to be manufactured by shaping a mixture including a binder, first ceramic or carbon particles intended to form the particulate reinforcement of the part and second ceramic or carbon particles distinct from the first particles, removal or pyrolysis of the binder present in the blank to obtain a porous preform of the part to be manufactured, and infiltration of the porosity of the preform by a molten composition including a metal in order to obtain the part.

公开(公告)号：US10882795B2

公开(公告)日：2021-01-05

申请号：US16621924

申请日：2018-06-13

Applicant: SAFRAN CERAMICS ,  ARIANEGROUP SAS

Inventor： Nicolas Eberling-Fux ,  Eric Bouillon ,  Guy Jacob ,  Eddy Goullianne

IPC: C04B35/571 ,  C04B35/628 ,  C04B35/632 ,  C04B41/49 ,  C04B41/45 ,  C04B35/80

Abstract: A process for manufacturing a composite part includes introducing an adhesion promoter into the pores of a fibrous preform formed by threads covered with a coating having —OH groups on its surface, the adhesion promoter including an electron-withdrawing group G1 that is reactive according to a reaction of substitution or of nucleophilic addition with the —OH groups, and a reactive group G2; grafting the adhesion promoter to the surface of the coating by a reaction of substitution or nucleophilic addition of the —OH groups on the group G1; introducing a ceramic precursor resin into the pores of the fibrous preform; polymerizing the resin introduced and bonding the grafted adhesion promoter to the resin by chemical reaction between these two compounds at the level of the group G2, and forming a ceramic matrix phase in the pores of the fibrous preform by pyrolysis of the polymerized resin.

公开(公告)号：US12269780B2

公开(公告)日：2025-04-08

申请号：US18012121

申请日：2021-06-21

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Arnaud Delehouze ,  Eric Bouillon ,  Nathalie Dominique Bertrand ,  Alain Jean-Michel Guette ,  Armine El Mansouri

IPC: C04B35/628 ,  C04B35/64 ,  C04B35/80 ,  C23C16/04 ,  C23C16/26 ,  C23C16/34 ,  C23C16/442

Abstract: A method for coating fibres includes coating short fibres having an average length less than or equal to 5 mm by chemical vapour deposition in a fluidised bed, the short fibres treated being made of ceramic material or carbon and being mixed with spacer particles distinct from the short fibres, the spacer particles having an average diameter greater than or equal to 20 μm.