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：US20220250992A1

公开(公告)日：2022-08-11

申请号：US17618214

申请日：2020-06-30

Applicant: SAFRAN CERAMICS

Inventor： Benjamin LACOMBE ,  Gildas GARNIER

IPC: C04B35/78 ,  B01D46/24 ,  B33Y80/00 ,  C04B38/00 ,  C04B35/628 ,  C04B35/657

Abstract: A porous ceramic structure intended to form the reinforcement of a ceramic matrix composite component, the structure having a connected porosity delimited by an internal surface which includes a plurality of first points, each first point being associated with a second point aligned with this first point along a normal to the internal surface taken at the first point, the structure being divisible into a plurality of unit volumes of a size less than or equal to 5 mm3 in each of which: a characteristic pore length, corresponding to the maximum of the distance separating each first point from its associated second point, is less than or equal to 0.5 mm; and a porosity ratio is greater than or equal to 50%.

公开(公告)号：US20230392515A1

公开(公告)日：2023-12-07

申请号：US18250898

申请日：2021-10-27

Applicant: SAFRAN CERAMICS

Inventor： Gildas GARNIER ,  Jean-François HENNE

IPC: F01D25/00 ,  F01D11/00 ,  F01D9/04 ,  F01D25/24

CPC classification number: F01D25/005 ,  F01D11/005 ,  F01D9/04 ,  F01D25/246 ,  F05D2300/20 ,  F05D2300/6033

Abstract: An assembly for a turbine includes a plurality of sectors which are adjacent to one another, each sector including at least one connecting edge of composite material with a ceramic matrix, each connecting edge including at least one groove and a sealing tongue present in each groove. Each sealing tongue has a laminated structure comprising a plurality of strips the lower strip and the upper strip of the laminated structure, each being formed by a film of monolithic ceramic material.

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.