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.