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：US20230382813A1

公开(公告)日：2023-11-30

申请号：US18248652

申请日：2021-10-12

Applicant: SAFRAN CERAMICS

Inventor： Arnaud DELEHOUZE ,  Eric BOUILLON

IPC: C04B35/80 ,  C04B35/64 ,  C04B35/638 ,  B22F3/22 ,  B22F5/04 ,  B22F5/10

CPC classification number: C04B35/80 ,  C04B35/64 ,  C04B35/638 ,  B22F3/225 ,  B22F5/04 ,  B22F5/10 ,  C04B2235/5248 ,  C04B2235/5244 ,  C04B2235/5224 ,  C04B2235/6022 ,  C04B2235/6028 ,  B22F2998/10 ,  B22F2005/103 ,  B22F3/105

Abstract: A method for manufacturing a hollow part made of ceramic matrix or metal matrix composite, includes preparing a raw material including short fibers and a ceramic matrix precursor charge, positioning a sacrificial core in a molding cavity of injection-molding equipment, shaping the raw material by injection molding the raw material into the free space between the sacrificial core and an internal wall of the cavity to obtain a green part including the sacrificial core and the shaped raw material, extracting the green part from the equipment, densifying the raw material by flash sintering of the green part to transform the charge into a ceramic matrix, removing the sacrificial core to obtain a hollow part made of ceramic matrix or metal matrix composite, wherein the sacrificial core is coated with a flexible graphite sheet, with a graphite layer deposited by spraying or with a boron nitride paint layer before the injecting.

公开(公告)号：US20230242453A1

公开(公告)日：2023-08-03

申请号：US18042174

申请日：2021-08-11

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

Inventor： Arnaud DELEHOUZE ,  Pierre FENETAUD ,  Sylvain Lucien JACQUES

IPC: C04B35/628 ,  C04B35/80 ,  C23C16/04 ,  C23C16/511 ,  C23C16/32 ,  C23C16/34 ,  C23C16/56 ,  C23C16/448 ,  C23C16/54

CPC classification number: C04B35/62884 ,  C04B35/80 ,  C04B35/62863 ,  C04B35/62868 ,  C23C16/045 ,  C23C16/511 ,  C23C16/325 ,  C23C16/342 ,  C23C16/345 ,  C23C16/56 ,  C23C16/4482 ,  C23C16/545 ,  C04B2235/5252 ,  C04B2235/5248 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/614

Abstract: A method for treating a carbon or ceramic yarn includes forming a coating on the yarn in a reaction zone of a reactor by heating a segment of the yarn in the presence of a gas phase in a microwave field, wherein the gas phase includes a mixture of a diluent gas and a coating precursor in the vapor state, and wherein the gas phase is formed at least by introducing the diluent gas into the reactor and mixing the introduced diluent gas with the coating precursor in the reactor before the reaction zone.

公开(公告)号：US20230174431A1

公开(公告)日：2023-06-08

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 ,  C23C16/26 ,  C23C16/34 ,  C23C16/442 ,  C23C16/04 ,  C04B35/80 ,  C04B35/64

CPC classification number: C04B35/62884 ,  C23C16/26 ,  C23C16/342 ,  C23C16/345 ,  C23C16/442 ,  C23C16/045 ,  C04B35/80 ,  C04B35/62873 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/64 ,  C04B2235/5248 ,  C04B2235/5244

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.

公开(公告)号：US20210188641A1

公开(公告)日：2021-06-24

申请号：US16756765

申请日：2018-10-18

Applicant: SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Arnaud DELEHOUZE ,  Amandine LORRIAUX ,  Laurence MAILLE ,  Patrick DAVID

IPC: C01B32/05 ,  C04B35/83

Abstract: A process for manufacturing pyrocarbon, includes forming pyrocarbon by a calefaction process from at least one C2 to C6 alcohol or polyalcohol precursor, the precursor being ethanol, rough laminar pyrocarbon being obtained by imposing a temperature of between 1250° C. and 1325° C. during calefaction.

公开(公告)号：US20200001504A1

公开(公告)日：2020-01-02

申请号：US16481199

申请日：2018-02-01

Applicant: SAFRAN CERAMICS

Inventor： Mathieu SCHWARTZ ,  Arnaud DELEHOUZE ,  Nicolas LAVAL ,  Bertrand DESJOYEAUX

IPC: B29B11/16 ,  B29C70/38

Abstract: A method of fabricating a composite part, includes forming a fiber preform for the part that is to be obtained by depositing a plurality of fiber structures impregnated with a thermoplastic polymer onto a surface, with deposition being performed by automated fiber placement; eliminating the thermoplastic polymer present in the preform by dissolution with a solvent; and injecting a liquid impregnation composition into the pores of the fiber preform after eliminating the thermoplastic polymer in order to form a matrix in the pores of the fiber preform.

公开(公告)号：US20240368757A1

公开(公告)日：2024-11-07

申请号：US18684972

申请日：2022-08-10

Applicant: SAFRAN CERAMICS

Inventor： Arnaud DELEHOUZE ,  Rémi Pierre Robert BOUVIER ,  Manon FERNANDEZ

IPC: C23C16/442 ,  C23C16/34 ,  C23C16/44

Abstract: A device for fluidised bed chemical vapour deposition, includes a reactor including a treatment zone in which the fluidised bed chemical vapour deposition is intended to be carried out using at least a first and a second reactive gas and a diffuser under the treatment zone delimiting the reactor, and a heating system configured to heat at least the treatment zone. The device includes a first channel for introducing the first reactive gas and a second channel for introducing the second reactive gas, which second channel is separate from the first channel and opens out under the diffuser, and wherein the first introduction channel is capable of being moved with respect to the heating system.

公开(公告)号：US20220316068A1

公开(公告)日：2022-10-06

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

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：US20200338840A1

公开(公告)日：2020-10-29

申请号：US16758277

申请日：2018-10-23

Applicant: SAFRAN CERAMICS

Inventor： Mathieu SCHWARTZ ,  Arnaud DELEHOUZE ,  Nicolas LAVAL ,  Bertrand DESJOYEAUX

IPC: B29C70/52 ,  C04B35/80 ,  B29C70/38 ,  B28B23/02 ,  C04B35/622

Abstract: An installation for depositing a shaped filled roving intended to be used to manufacture a composite-material component, includes a device for feeding a fibrous roving impregnated with a composition including a binder and ceramic or carbon fillers, a die for shaping and draining the binder defined by at least one porous surface, the die having an evolving section between an inlet section and an outlet section, the inlet section being larger than the outlet section, a support in communication with the die outlet on which the shaped roving is to be deposited, and a first conveying device configured to convey the roving from the feed device through the die and to the support.

公开(公告)号：US20230287563A1

公开(公告)日：2023-09-14

申请号：US18246118

申请日：2021-09-20

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

Inventor： Arnaud DELEHOUZE ,  Eric BOUILLON ,  Sylvain Lucien JACQUES

IPC: C23C16/40 ,  F01D5/28 ,  C23C16/56 ,  C04B41/45

CPC classification number: C23C16/401 ,  F01D5/288 ,  C23C16/56 ,  C04B41/4531 ,  F05D2230/314 ,  F05D2300/6033 ,  F05D2300/611 ,  F05D2230/90

Abstract: A method for producing a part having improved resistance to oxidation and high temperature-corrosion, includes the formation of an environmental barrier coating on an at least partially ceramic matrix composite material, the environmental barrier coating being formed by direct liquid injection-metal organic chemical vapor deposition.