公开(公告)号：US20240051884A1

公开(公告)日：2024-02-15

申请号：US18483796

申请日：2023-10-10

Applicant: SAFRAN CERAMICS

Inventor： Simon ARNAL ,  Lisa PIN

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/45 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C23C24/10

CPC classification number: C04B41/5024 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/4545 ,  C04B41/522 ,  C04B41/87 ,  C04B41/89 ,  C23C24/10

Abstract: A method for coating a ceramic matrix composite part with an environmental barrier, includes a) applying, to the surface of the part, a coating composition including a first powder of a rare earth silicate and a second powder including boron, the coating composition having a ratio R=[mass of the second powder]/[mass of the first powder] of between 0.1% and 5%, wherein the second powder includes a boron powder, and b) sintering the first and second powders in order to obtain the environmental barrier on the part.

公开(公告)号：US20230250034A1

公开(公告)日：2023-08-10

申请号：US18003042

申请日：2021-06-22

Applicant: SAFRAN CERAMICS

Inventor： Lisa PIN ,  Luc Patrice BIANCHI ,  Sophie Olivia Michele BOUDET ,  Jimmy James MARTHE

IPC: C04B41/89 ,  C04B41/52 ,  C04B35/622 ,  C04B41/00 ,  C04B35/628 ,  C04B35/16 ,  C23C4/10 ,  C23C4/18

CPC classification number: C04B41/89 ,  C04B41/52 ,  C04B35/62222 ,  C04B41/009 ,  C04B35/62815 ,  C04B35/62884 ,  C04B35/62886 ,  C04B35/16 ,  C23C4/10 ,  C23C4/18 ,  C04B2235/3225 ,  C04B2235/3224

Abstract: A method for manufacturing an environmental barrier comprising the steps of coating a rare earth silicate powder with a precursor of a densification agent in order to form a rare earth silicate powder coated with the precursor of the densification agent, thermally spraying the coated powder onto a substrate in order to obtain an at least partially amorphous environmental barrier on the substrate and thermally treating the environmental barrier in order to crystallize and densify the environmental barrier.

公开(公告)号：US20250019821A1

公开(公告)日：2025-01-16

申请号：US18713007

申请日：2022-11-21

Applicant: SAFRAN CERAMICS

Inventor： Eric BOUILLON ,  Lisa PIN ,  Simon ARNAL ,  Benjamin COSSOU

IPC: C23C16/24 ,  C23C16/56 ,  F01D5/28

Abstract: A method including a step of forming a bond coating on a surface of a substrate, and a step of forming a barrier coating on the bond coating. The bond coating is formed by chemical vapor deposition, at a deposition temperature higher than 150° C., in particular 1200° C. or higher, of a precursor including silicon, and includes columnar grains of crystalline silicon.

公开(公告)号：US20190040761A1

公开(公告)日：2019-02-07

申请号：US16076928

申请日：2017-02-16

Applicant: SAFRAN CERAMICS

Inventor： Maxime CARLIN ,  Lisa PIN

IPC: F01D25/00 ,  F01D11/08

Abstract: A turbine ring sector made of ceramic matrix composite material has a portion forming an annular base with an inner face for defining the inner face of a turbine ring when the ring sector is mounted on a ring support structure and an outer face from which there extends an attachment portion for attaching the ring sector to the ring support structure, the ring sector further including inter-sector faces, each for facing a neighboring ring sector when the ring sector is mounted on the ring support structure; wherein the inter-sector faces are coated in an environmental barrier that is doped with an electrically-conductive compound and that presents at least one slot.

公开(公告)号：US20240417339A1

公开(公告)日：2024-12-19

申请号：US18722026

申请日：2022-12-13

Applicant: SAFRAN CERAMICS ,  SAFRAN

Inventor： Eric CONETE ,  Lisa PIN ,  Ioannis STASINOPOULOS

IPC: C04B41/52 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/51 ,  F01D5/28 ,  F01D21/00

Abstract: A part includes a substrate made of ceramic matrix composite material, the substrate being coated with a multilayer stack including at least, and in this order, starting from the substrate a tie layer including silicon; an insulation layer including a rare earth disilicate or silica; a barrier layer including a rare earth disilicate; the part further including at least one thermocouple inserted between the insulation layer and the barrier layer.

公开(公告)号：US20230121823A1

公开(公告)日：2023-04-20

申请号：US17908137

申请日：2021-02-25

Applicant: SAFRAN CERAMICS

Inventor： Simon ARNAL ,  Lisa PIN

IPC: C04B41/50 ,  C04B41/00 ,  C04B41/45 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C23C24/10

Abstract: A method for coating a ceramic matrix composite part with an environmental barrier, the method including a) applying, to a surface of the part, a coating composition including a first powder of a rare earth silicate and a second powder including boron, the coating composition having a ratio R=[mass of the second powder]/[mass of the first powder] of between 0.1% and 5%, and b) sintering the first and second powders to obtain the environmental barrier on the part.

公开(公告)号：US20190330121A1

公开(公告)日：2019-10-31

申请号：US16475903

申请日：2018-01-04

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

Inventor： Lisa PIN ,  Simon ARNAL ,  Francis REBILLAT ,  Fabrice MAUVY

IPC: C04B41/87 ,  C04B41/89 ,  C04B41/00 ,  C04B41/50 ,  F01D5/28

Abstract: A part includes a substrate, having, adjacent to a surface of the substrate, at least a portion that is made from a material that contains silicon, and an environmental barrier formed on the surface of the substrate, the environmental barrier including at least a first layer including a rare earth disilicate of formula REa2Si2O7 present at a molar content lying in the range 70% to 99.9%, where REa is a rare earth element; and at least one rare earth oxide of formula REb2O3 present at a molar content lying in the range 0.1% to 30%, where REb is a rare earth element different from REa.

公开(公告)号：US20240425424A1

公开(公告)日：2024-12-26

申请号：US18707133

申请日：2022-10-26

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

Inventor： Francis REBILLAT ,  Lisa PIN ,  Marie SALLES ,  Eric BOUILLON

IPC: C04B41/89 ,  C04B41/00 ,  C04B41/45

Abstract: The invention relates to a method for depositing an environmental barrier on a part made of composite material having a ceramic matrix comprising silicon carbide fibres. The method comprises the deposition of a joining layer on at least one surface of the part, the joining layer comprising mullite or a mullite precursor, and the deposition of a protective layer on the joining layer, the protective layer comprising a rare earth disilicate.

公开(公告)号：US20230087593A1

公开(公告)日：2023-03-23

申请号：US17802062

申请日：2021-02-19

Applicant: SAFRAN CERAMICS

Inventor： Maxime François Roger CARLIN ,  Adèle LYPRENDI ,  Jean-François HENNE ,  Lisa PIN

IPC: F01D11/08 ,  F01D11/00 ,  F01D9/04

Abstract: Assembly in a turbine comprising: —at least one turbine ring made of a ceramic composite having a silicon carbide SiC matrix and fibers, the ring comprising a plurality of sectors (10) arranged circumferentially end to end, each of the ring sectors (10) comprises at least one circumferential edge (26, 28) provided with at least one slot (30a, 30b, 30c) opening circumferentially, —at least one sealing member being inserted for a first part into one of the slots (30a, 30b, 30c) of an edge of a first ring sector and for a second part into one of the slots (30a, 30b, 30c) of an edge of a second ring sector, circumferentially adjacent to the first ring sector, the assembly being characterized in that the sealing member is made of a ceramic matrix composite.

公开(公告)号：US20190152861A1

公开(公告)日：2019-05-23

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 ,  C04B35/80 ,  C04B35/624 ,  C04B35/64 ,  C04B35/628

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.