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：US20250042820A1

公开(公告)日：2025-02-06

申请号：US18718161

申请日：2022-12-09

Applicant: SAFRAN CERAMICS

Inventor： Stéphane Roger André GOUJARD ,  Guillaume Jean-Nicolas LADUYE ,  Benjamin COSSOU

IPC: C04B35/571 ,  C04B35/628 ,  C04B35/80

Abstract: A method for manufacturing a part of SiC/SiC composite material includes the production of a fibrous preform from silicon carbide fibers; the deposition of an interphase on the fibers of the fibrous preform; a first densification including the formation of a first matrix phase by chemical vapor infiltration with a first matrix precursor including methyltrichlorosilane (MTS); a second densification including the formation of a second matrix phase by chemical vapor infiltration with a second SiC precursor different from the first precursor, the second precursor forming an SiC deposit comprising residual hydrogen and free silicon; and a third densification including the impregnation of the fibrous preform with an impregnation composition containing at least silicon so as to obtain a part made of SiC/SiC composite material.

公开(公告)号：US20250026689A1

公开(公告)日：2025-01-23

申请号：US18713503

申请日：2022-11-25

Applicant: SAFRAN CERAMICS

Inventor： Simon ARNAL ,  Gaël Philippe François BATTISTONI ,  Benjamin COSSOU ,  Rémy Pierre Marie DUPONT ,  Gilles Gérard Claude LEPRETRE

IPC: C04B35/628 ,  C04B35/80 ,  C04B38/00

Abstract: A core for producing a blade is formed by molding a fibrous preform around the core. The core extends in a longitudinal direction (L) between a root and a tip and has a first face and a second face connected to each other at a first longitudinal edge and at a second longitudinal edge. The core includes fluid passages formed in a transverse thickness of the core, these fluid passages being adapted to allow the passage of fluid from the first face to the second face and vice versa.