US 12,385,404 B2
Blade made of composite material with at least partially ceramic matrix
Lucien Henri Jacques Quennehen, Moissy-Cramayel (FR); and Christophe Touchon, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 18/252,957
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Dec. 8, 2021, PCT No. PCT/FR2021/052237
§ 371(c)(1), (2) Date May 15, 2023,
PCT Pub. No. WO2022/129734, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 2013604 (FR), filed on Dec. 18, 2020.
Prior Publication US 2023/0366319 A1, Nov. 16, 2023
Int. Cl. F01D 5/28 (2006.01); B33Y 10/00 (2015.01); C04B 35/71 (2006.01)
CPC F01D 5/282 (2013.01) [F01D 5/284 (2013.01); B33Y 10/00 (2014.12); C04B 35/71 (2013.01); C04B 2235/526 (2013.01); C04B 2235/6026 (2013.01); C04B 2235/616 (2013.01); F05D 2300/6033 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a blade made of composite material, the blade comprising a fibrous reinforcement that is densified by a matrix that is at least partially ceramic, wherein the fibrous reinforcement comprises a first structural portion formed by three-dimensional weaving densified by said matrix, and a second functional portion consisting essentially of short fibers densified by said matrix and wherein the second functional portion forms a platform of the blade and spoilers of the platform and/or spoilers of a root of the blade, wherein the short fibers have an average length less than or equal to 5000 μm, and wherein the first structural portion and the second functional portion are co-densified with said matrix, wherein the method comprises:
depositing a mixture of the short fibers and a binder on the first structural portion of the fibrous reinforcement,
removing the binder, and
forming the matrix, which includes a ceramic matrix phase common to the short fibers and to the first structural portion of the fibrous reinforcement.