公开(公告)号：US20200339480A1

公开(公告)日：2020-10-29

申请号：US16958558

申请日：2018-12-21

Applicant: SAFRAN CERAMICS

Inventor： Eric PHILIPPE ,  Medhy Damien BOUNIA ,  Aurélia CLERAMBOURG ,  Paul CARMINATI

IPC: C04B35/80 ,  B28B1/24 ,  C04B35/628 ,  C04B35/64

Abstract: A process for manufacturing a composite material part includes formation of a fibrous texture from refractory ceramic fibres, placement of the fibrous texture in a mould with interposition of a filtration layer between the fibrous texture and a discharge port, the filtration layer including a partially densified fibrous structure, pressure injection of a slurry containing a powder of refractory ceramic particles into the fibrous texture, drainage by the filtration layer of the slurry solvent having passed through the fibrous texture and retention of the powder of refractory ceramic particles within the texture by the filtration layer to obtain a fibrous preform including the fibrous texture filled with refractory ceramic particles and the filtration layer, heat treatment of the refractory ceramic particles present in the fibrous texture of the preform to form a composite material part including the fibrous texture densified by a refractory ceramic matrix and the filtration layer.

公开(公告)号：US20220016801A1

公开(公告)日：2022-01-20

申请号：US17414765

申请日：2019-12-19

Applicant: SAFRAN CERAMICS

Inventor： Eric PHILIPPE ,  Medhy Damien BOUNIA ,  Aurélia CLERAMBOURG

IPC: B28B1/24 ,  B28B1/52 ,  B28B7/40 ,  B28B7/00

Abstract: A tool for manufacturing a ceramic matrix composite part by injecting a slurry, the tool includes an injection chamber intended to receive at least one fibrous preform to be densified, wherein the injection chamber includes first injection ports which are formed in a first side of the injection chamber for injecting the slurry into the injection chamber, the first injection ports being distributed along the first side of the injection chamber; the injection chamber includes first drainage ports which are formed on the first side of the injection chamber for draining a liquid phase of the slurry from the injection chamber, the first drainage ports being distributed along the first side of the injection chamber; and the tool includes a first filtration element which is located on the first side of the injection chamber and which is located opposite the first drainage ports.

公开(公告)号：US20200181029A1

公开(公告)日：2020-06-11

申请号：US16312545

申请日：2017-06-28

Applicant: SAFRAN CERAMICS

Inventor： Aurélia CLERAMBOURG ,  Marie LEFEBVRE ,  Sébastien DENNEULIN ,  Eric PHILIPPE ,  Eric BOUILLON

IPC: C04B35/80 ,  C04B35/628 ,  C04B35/657 ,  D03D25/00

Abstract: A method of fabricating a composite material part including fiber reinforcement and a ceramic matrix present in the pores of the fiber reinforcement, the method including a) forming the fiber reinforcement by three-dimensionally weaving ceramic yarns, the fiber reinforcement as formed in this way presenting an interlock weave; b) forming a first ceramic matrix phase in the pores of the fiber reinforcement; c) after performing step b), introducing into the pores of the fiber reinforcement a powder that includes a mixture of SiC particles and of carbon particles; and d) infiltrating the fiber reinforcement obtained after performing step c), with an infiltration composition in the molten state including at least silicon so as to form a second ceramic matrix phase in the pores of the fiber reinforcement, thereby obtaining the composite material part.

公开(公告)号：US20210163366A1

公开(公告)日：2021-06-03

申请号：US17048478

申请日：2019-04-04

Applicant: SAFRAN CERAMICS

Inventor： Aurélia CLERAMBOURG ,  Emilie MENDEZ ,  Eric PHILIPPE ,  Denis VICIEN

IPC: C04B35/80 ,  C04B35/628 ,  C04B35/657 ,  F01D25/00

Abstract: A process for manufacturing a ceramic matrix composite part, includes infiltrating a fibrous structure including a powder composition with a melt infiltration composition including at least silicon in order to form a ceramic matrix in the porosity of the fibrous structure, the powder composition including at least silicon carbide particles, wherein the silicon carbide particles have a bimodal size distribution with a first set of silicon carbide particles having a first average size and a second set of silicon carbide particles having a second average size smaller than the first average size, the number of particles in the first set being greater than the number of particles in the second set.

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.