公开(公告)号：US20200255344A1

公开(公告)日：2020-08-13

申请号：US16649329

申请日：2018-09-13

Applicant: Safran Ceramics

Inventor： Maxime François Roger CARLIN ,  Nicolas EBERLING-FUX ,  Eddy GOULLIANNE ,  Thierry Guy Xavier TESSON

IPC: C04B35/80 ,  C04B35/628 ,  C04B41/00 ,  F01D5/28 ,  F23R3/00

Abstract: Method for manufacturing a CMC, i.e. ceramic matrix composite material, part provided with at least one cutout, as well as to such a CMC part provided with at least one cutout, the method comprising the following steps: providing (E1) a fibrous reinforcement (10), forming (E2′) a cavity in a portion of the fibrous reinforcement (10), injecting (E3) a slip comprising at least a ceramic powder and a solvent, the slip being injected so as to impregnate the fibrous reinforcement (10′) and to fill the cavity of the fibrous reinforcement (10′), drying (E4) the obtained assembly, carrying out a densification (E6) by infiltration of a liquid densification material and solidification of said densification material, machining (E7) at least one cutout in the obtained blank (30) within the volume corresponding to the cavity of the fibrous reinforcement (10).

公开(公告)号：US20200269468A1

公开(公告)日：2020-08-27

申请号：US16649372

申请日：2018-09-19

Applicant: SAFRAN CERAMICS

Inventor： Nicolas EBERLING-FUX ,  Eddy GOULLIANNE ,  William ROS

IPC: B28B23/00 ,  B29C70/48 ,  F02K1/82 ,  F01D5/28 ,  F01D9/04 ,  F01D25/24 ,  B28B19/00 ,  B28B13/02 ,  C04B35/80

Abstract: A method for manufacturing a part made of composite material includes injecting into a fibrous texture a slurry including at least one powder of refractory ceramic particles suspended in a liquid phase, filtering the liquid phase of the slurry and retaining the powder of refractory ceramic particles inside the texture so as to obtain a fibrous preform loaded with refractory ceramic particles, densifying the fibrous texture by treatment of the refractory ceramic particles present in the fibrous texture in order to form a refractory matrix in the texture. The method further includes, before injecting the slurry under pressure, pre-saturating the fibrous texture with a carrier fluid consisting in injecting into said texture a carrier fluid.