公开(公告)号：US10239795B2

公开(公告)日：2019-03-26

申请号：US15538982

申请日：2015-12-18

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN

Inventor： Catherine Billotte Cabre ,  Nicolas Droz ,  Ludovic Liais ,  Michael Podgorski ,  Edu Ruiz ,  Sylvain Turenne

IPC: C04B35/80 ,  C04B35/64 ,  B28B1/26 ,  B28B7/36 ,  C04B35/117 ,  C04B35/14 ,  C04B35/18 ,  C04B35/185 ,  C04B35/447 ,  C04B35/565 ,  C04B35/58 ,  C04B35/626 ,  C04B35/634 ,  B28B23/02 ,  B29C70/48 ,  D03D25/00 ,  B28B1/52 ,  B28B11/24 ,  C04B35/628 ,  F01D5/28 ,  B29K309/02 ,  B29K509/02

Abstract: A method of fabricating a fiber preform filled with refractory ceramic particles, includes placing a fiber texture including refractory ceramic fibers in a mold cavity; injecting a slip including a powder of refractory ceramic particles present in a liquid medium, the slip being injected into the pores of the fiber texture present in the mold cavity, injection being performed through at least a first face or a first edge of the fiber texture; and draining the liquid medium of the slip that has penetrated into the fiber texture through the porous material part, the draining being performed at least through a second face or a second edge of the fiber texture different from the first face or the first edge, the porous material part also serving to retain the refractory particle powder in the pores of the fiber texture to obtain a fiber preform filled with refractory particles.

公开(公告)号：US11933181B2

公开(公告)日：2024-03-19

申请号：US17746417

申请日：2022-05-17

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Philippe Charles Alain Le Biez ,  Nicolas Droz ,  Lisa Pin ,  Serge Georges Vladimir Selezneff

IPC: F01D11/12 ,  C23C4/073 ,  C23C4/11

CPC classification number: F01D11/122 ,  C23C4/073 ,  C23C4/11 ,  F05D2300/611

Abstract: An abradable coating for a turbomachine part, includes a matrix made of a first metal material and particles made of a second metal material that are dispersed in the matrix, the first metal material having a melting temperature greater than 900° C., the second metal material having a melting temperature at least 50° C. lower than the melting temperature of the first metal material.

公开(公告)号：US12065387B2

公开(公告)日：2024-08-20

申请号：US17284295

申请日：2019-10-09

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Philippe Charles Alain Le Biez ,  Nicolas Droz ,  Ludovic Philippe Liais ,  Serge Georges Vladimir Selezneff

IPC: C04B41/45 ,  C04B41/50

CPC classification number: C04B41/4505 ,  C04B41/4582 ,  C04B41/5027

Abstract: A process for manufacturing a porous abradable coating includes: filling a mold with hollow glass or thermosetting polymer beads and a slurry; and sintering heat treatment to obtain a ceramic layer with pores. A maximum sintering temperature of the green body of the ceramic part is either higher than the melting temperature of the hollow glass beads so that at the end of the sintering heat treatment the hollow glass beads are melted, or higher than the decomposition temperature of the hollow thermosetting polymer beads so that at the end of the sintering heat treatment the hollow thermosetting polymer beads are decomposed.

公开(公告)号：US11891342B2

公开(公告)日：2024-02-06

申请号：US17284277

申请日：2019-10-04

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN

Inventor： Ludovic Philippe Liais ,  Nicolas Droz ,  Michaël Podgorski

IPC: C04B35/80 ,  C04B35/117 ,  C04B35/14 ,  C04B35/18 ,  C04B35/185 ,  C04B35/447 ,  C04B35/488 ,  C04B35/565 ,  C04B35/58 ,  C04B35/584 ,  C04B35/626 ,  C04B35/628 ,  C04B35/64

CPC classification number: C04B35/80 ,  C04B35/117 ,  C04B35/14 ,  C04B35/18 ,  C04B35/185 ,  C04B35/447 ,  C04B35/488 ,  C04B35/565 ,  C04B35/584 ,  C04B35/58071 ,  C04B35/62655 ,  C04B35/62892 ,  C04B35/62894 ,  C04B35/64 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3463 ,  C04B2235/3804 ,  C04B2235/3817 ,  C04B2235/3852 ,  C04B2235/447 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5232 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/604 ,  C04B2235/616

Abstract: Method for manufacturing a composite material part includes injecting a slurry containing a refractory ceramic particle powder into a fibrous texture, draining the liquid from the slurry that passed through the fibrous texture and retaining the refractory ceramic particle powder inside said texture so as to obtain a fibrous preform loaded with refractory ceramic particles, and demoulding of the fibrous preform. The method includes, after demoulding the fibrous preform, checking the compliance of the demoulded fibrous preform. If the preform is noncompliant, the method also includes, before a sintering, immersing the demoulded fibrous preform in a bath of a liquid suitable for decompacting the refractory ceramic particles present in the fibrous preform, and additionally injecting a slurry containing a refractory ceramic particle powder into the fibrous preform present in the mould cavity.

公开(公告)号：US11359508B2

公开(公告)日：2022-06-14

申请号：US17269854

申请日：2019-08-20

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Philippe Charles Alain Le Biez ,  Nicolas Droz ,  Lisa Pin ,  Serge Georges Vladimir Selezneff

IPC: F01D11/12 ,  C23C4/073 ,  C23C4/11

Abstract: An abradable coating includes a matrix and particles that are dispersed in the matrix, the particles being made of a material switching into a fluid phase under the effect of the increase in temperature upon contact between a tip of a blading and the abradable coating.

公开(公告)号：US10954169B2

公开(公告)日：2021-03-23

申请号：US15766206

申请日：2016-10-04

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN

Inventor： Nicolas Droz ,  Ludovic Philippe Liais ,  Adrien Paixao ,  Michael Podgorski ,  Sofia Haifi

IPC: C04B35/565 ,  C04B35/584 ,  C04B35/14 ,  C04B35/185 ,  C04B35/117 ,  C04B35/488 ,  C04B35/18 ,  C04B41/45 ,  C04B41/50 ,  D03D15/00 ,  F01D5/28 ,  C04B35/80 ,  B28B23/00 ,  C04B35/58 ,  C04B35/626 ,  B28B7/34 ,  B28B1/24 ,  B28B1/26 ,  C04B35/447 ,  D03D1/00 ,  D03D11/00 ,  D03D25/00 ,  C04B35/64

Abstract: A method of fabricating a composite material part includes injecting under pressure a slurry containing a powder of refractory ceramic particles into a fiber texture; and draining the liquid of the slurry that has passed through the fiber texture, while retaining the powder of refractory ceramic particles within the texture to obtain a fiber preform filled with refractory ceramic particles. The injection tooling includes a porous material mold including an internal housing in which the fiber texture is placed, the slurry being injected into the fiber texture via an injection port in the injection tooling and leading into the internal housing of the mold. The tooling includes a rigid material enclosure in which the porous material mold is held while the slurry is injected under pressure and while the liquid of the slurry is drained, the liquid of the slurry being discharged via a vent present in the enclosure.