公开(公告)号：US20210261471A1

公开(公告)日：2021-08-26

申请号：US17267363

申请日：2019-08-12

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Rémy DUPONT ,  Sébastien BERTRAND ,  Stéphane Roger André GOUJARD ,  Matthieu CHAMPAGNE ,  Olivier CLAUSSE ,  Jean-Michel GARCIA ,  Jeff ROUSTAND

IPC: C04B35/83 ,  C04B35/628 ,  F16D69/02 ,  C23C16/04 ,  C23C16/455

Abstract: A method for densifying porous annular substrates by chemical vapor infiltration, includes providing a plurality of unit modules including a support tray on which substrates are stacked, the support tray including a gas intake opening extended by an injection tube disposed in an internal volume formed by the central passages of the stacked substrates, the injection tube including gas injection orifices opening into the internal volume, forming stacks of unit modules in the enclosure of a densification furnace and injecting, into the stacks of unit modules, a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.

公开(公告)号：US20250109497A1

公开(公告)日：2025-04-03

申请号：US18838765

申请日：2023-02-16

Applicant: SAFRAN LANDING SYSTEMS ,  SAFRAN CERAMICS

Inventor： Matthieu CHAMPAGNE ,  Jeff ROUSTAND ,  Franck LAMOUROUX ,  Sébastien BERTRAND

IPC: C23C16/458 ,  C23C16/04 ,  C23C16/44

Abstract: A method for densifying porous annular substrates having a central passage by chemical vapor infiltration, the method including providing stacks of porous annular substrates, providing a plurality of individual modules including stacks disposed on a support plate having a perforated injection tube each mounted on a gas inlet opening, forming a stack of individual modules, aligning the individual modules of the stack in a sealed manner by means of an annular seal disposed between the injection tube of a second individual module and the gas inlet opening of a first individual module with which it cooperates, and injecting into the internal volume of each stack of porous annular substrates a gas phase including a gaseous precursor of a matrix material to be deposited within the porosities of the substrates.