公开(公告)号：US20200181029A1

公开(公告)日：2020-06-11

申请号：US16312545

申请日：2017-06-28

Applicant: SAFRAN CERAMICS

Inventor： Aurélia CLERAMBOURG ,  Marie LEFEBVRE ,  Sébastien DENNEULIN ,  Eric PHILIPPE ,  Eric BOUILLON

IPC: C04B35/80 ,  C04B35/628 ,  C04B35/657 ,  D03D25/00

Abstract: A method of fabricating a composite material part including fiber reinforcement and a ceramic matrix present in the pores of the fiber reinforcement, the method including a) forming the fiber reinforcement by three-dimensionally weaving ceramic yarns, the fiber reinforcement as formed in this way presenting an interlock weave; b) forming a first ceramic matrix phase in the pores of the fiber reinforcement; c) after performing step b), introducing into the pores of the fiber reinforcement a powder that includes a mixture of SiC particles and of carbon particles; and d) infiltrating the fiber reinforcement obtained after performing step c), with an infiltration composition in the molten state including at least silicon so as to form a second ceramic matrix phase in the pores of the fiber reinforcement, thereby obtaining the composite material part.

公开(公告)号：US20240417338A1

公开(公告)日：2024-12-19

申请号：US18722009

申请日：2022-12-19

Applicant: SAFRAN CERAMICS

Inventor： Thomas VANDELLOS ,  Simon ARNAL ,  Eric BOUILLON ,  Lallie Claudie Régine QUEMERAS

IPC: C04B41/52 ,  C04B41/00 ,  C04B41/50

Abstract: A part made of coated composite material, includes a substrate made of ceramic matrix composite material; a tie-coat layer covering the substrate; and a protective coating on the tie-coat layer and defining an environmental barrier, the protective coating including a rare-earth silicate and including a first outer region including an outer surface of the protective coating opposite to the substrate and having a first working creep, having deformation of less than or equal to 0.07% when a compressive stress of at least 50 MPa is applied for a duration of 10 hours at a temperature of between 1050° C. and 1300° C. The first region includes a grain growth inhibitor; and a second, inner, environmental barrier region, including an interface of the protective coating with the tie-coat layer and having a second working creep.

公开(公告)号：US20220252022A1

公开(公告)日：2022-08-11

申请号：US17631281

申请日：2020-08-12

Applicant: SAFRAN CERAMICS

Inventor： Eric BOUILLON ,  Eric CONETE

IPC: F02K1/82

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：US20220177374A1

公开(公告)日：2022-06-09

申请号：US17601270

申请日：2020-03-30

Applicant: SAFRAN CERAMICS ,  GENERAL ELECTRIC

Inventor： Eric BOUILLON ,  Michael VERRILLI ,  Eric PHILIPPE ,  Gildas GARNIER

IPC: C04B35/565 ,  C04B35/80 ,  C04B35/628

Abstract: A method of fabricating a CMC part, includes coating a plurality of tows with an interphase by transporting the tows through a treatment chamber in which a gas phase is injected, the tows being tensioned during their transport and the interphase being formed by vapor deposition from the injected gas phase; forming a fiber preform by performing three-dimensional weaving using the tows coated with the interphase; and forming a consolidated fiber preform by treating the fiber preform by chemical vapor infiltration to form a consolidation phase on the interphase, the consolidation phase comprising silicon carbide and having a Young's modulus greater than or equal to 350 GPa.

公开(公告)号：US20210292245A1

公开(公告)日：2021-09-23

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 ,  F01D5/28 ,  C04B35/628

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：US20200325950A1

公开(公告)日：2020-10-15

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: F16D69/02 ,  C04B35/80 ,  C04B35/628 ,  C23C16/04 ,  C23C16/26 ,  C23C16/40 ,  C23C16/32 ,  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：US20240254622A1

公开(公告)日：2024-08-01

申请号：US18019693

申请日：2021-07-09

Applicant: SAFRAN CERAMICS

Inventor： Arnaud DELEHOUZE ,  Eric BOUILLON ,  Stéphane Roger André GOUJARD ,  Marc MONTAUDON

IPC: C23C16/44 ,  B33Y10/00 ,  C04B35/628 ,  C04B35/80

CPC classification number: C23C16/4418 ,  B33Y10/00 ,  C04B35/62884 ,  C04B35/80 ,  C04B2235/5248 ,  C04B2235/614 ,  C04B2235/665

Abstract: A method for manufacturing a structure by an additive manufacturing technique implementing a chemical vapor deposition assisted by focused energy radiation, includes the formation of a reinforcement which comprises a plurality of interconnected reinforcing elements made of ceramic or carbon, which define therebetween an interstitial volume having a tortuous shape along the deposition axis.

公开(公告)号：US20230399265A1

公开(公告)日：2023-12-14

申请号：US18257029

申请日：2021-12-08

Applicant: SAFRAN CERAMICS

Inventor： Arnaud DELEHOUZE ,  Eric BOUILLON ,  Gildas GARNIER ,  Clément Marie Benoît ROUSSILLE

IPC: C04B35/657 ,  C04B35/628 ,  C04B35/80 ,  F01D5/28

CPC classification number: C04B35/657 ,  C04B35/62844 ,  C04B35/80 ,  F01D5/282 ,  F05D2300/6033 ,  F05D2230/22 ,  C04B2235/5256 ,  C04B2235/616

Abstract: A method for manufacturing a turbomachine blade made of ceramic matrix composite component includes at least a structural part and a functional part secured to the structural part, the method including obtaining an assembly including a first preform of the functional part that is mounted on a second preform of the structural part or on the structural part, the first preform including a fibrous reinforcement of short fibres, and the second preform or the structural part comprising a woven fibrous reinforcement, and densification of the first preform of the assembly by infiltration with a molten composition.

公开(公告)号：US20230126667A1

公开(公告)日：2023-04-27

申请号：US17914676

申请日：2021-03-22

Applicant: SAFRAN CERAMICS

Inventor： Matthieu Arnaud GIMAT ,  Eric BOUILLON ,  Maxime François Roger CARLIN

IPC: F01D5/28 ,  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：US20210062343A1

公开(公告)日：2021-03-04

申请号：US16958011

申请日：2018-12-20

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

Inventor： Arnaud DELEHOUZE ,  Eric BOUILLON ,  Adrien DELCAMP ,  Cédric DESCAMPS

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

Abstract: A process for depositing a coating on a continuous carbon or silicon carbide fibre from a coating precursor, includes at least 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 enabling the coating to be formed on the segment from the coating precursor.