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：US10724399B2

公开(公告)日：2020-07-28

申请号：US16076928

申请日：2017-02-16

Applicant: SAFRAN CERAMICS

Inventor： Maxime Carlin ,  Lisa Pin

IPC: F01D11/08 ,  F01D25/00 ,  F01D11/12 ,  C04B41/52 ,  C04B41/50 ,  C04B41/00 ,  C04B41/89 ,  C04B41/85 ,  F01D11/00

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：US11713283B2

公开(公告)日：2023-08-01

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 ,  C04B41/50 ,  C04B41/89 ,  F01D5/28 ,  C04B41/00

CPC classification number: C04B41/87 ,  C04B41/0009 ,  C04B41/5024 ,  C04B41/89 ,  F01D5/284 ,  F01D5/288

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：US12195406B2

公开(公告)日：2025-01-14

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：US11814325B2

公开(公告)日：2023-11-14

申请号：US17908137

申请日：2021-02-25

Applicant: SAFRAN CERAMICS

Inventor： Simon Arnal ,  Lisa Pin

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

CPC classification number: C04B41/5024 ,  C04B41/009 ,  C04B41/0072 ,  C04B41/4545 ,  C04B41/522 ,  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：US11505508B2

公开(公告)日：2022-11-22

申请号：US16475551

申请日：2017-12-29

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

Inventor： Lisa Pin ,  Simon Arnal ,  Francis Rebillat ,  Fabrice Mauvy

IPC: C04B41/00 ,  C04B41/50 ,  C04B41/89 ,  C04B41/52 ,  C04B41/45 ,  F01D5/28

Abstract: A part includes a substrate having, adjacent to a surface of the substrate, at least a portion that is made of a material that contains silicon, and an environmental barrier formed on the surface of the substrate, the environmental barrier including a first layer including at least one first rare earth silicate and presenting grains with a mean size less than or equal to 1 μm; and a second layer covering the first layer, the second layer including at least one rare earth silicate and presenting grains with a mean size greater than 1 μm.