公开(公告)号：US11897816B2

公开(公告)日：2024-02-13

申请号：US17054676

申请日：2019-05-15

申请人： SAFRAN ,  SAFRAN CERAMICS ,  SAFRAN AIRCRAFT ENGINES

发明人： Michaël Podgorski ,  Bruno Jacques Gérard Dambrine ,  Emilie Chantal Gisèle Mendez ,  Wen Zhang ,  Yvan Rappart ,  Charles Leleu

IPC分类号： C04B35/78 ,  C04B41/00 ,  C04B41/45 ,  C04B41/47 ,  C04B41/50 ,  C04B41/52 ,  C04B35/80 ,  C04B35/565 ,  C04B35/185 ,  C04B35/583 ,  C04B35/584 ,  F01D5/28 ,  C04B35/573

CPC分类号： C04B35/565 ,  C04B35/185 ,  C04B35/573 ,  C04B35/583 ,  C04B35/584 ,  C04B35/78 ,  C04B35/80 ,  C04B41/009 ,  C04B41/459 ,  C04B41/47 ,  C04B41/5096 ,  C04B41/52 ,  F01D5/288 ,  C04B2235/422 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/6028 ,  F05D2260/95 ,  F05D2300/6033

摘要： A process for manufacturing a part made of a ceramic matrix composite material, includes coating an outer surface of a porous preform with a layer of a fugitive material to form a model of the part to be obtained, the fugitive material being wax or resin, the fugitive material layer in the model not exceeding the highest peak of surface undulations of the preform, and ceramic and/or carbon particles being present in the porosity of the preform, coating the model formed with a ceramic powder composition, heat treating the coated model to remove the fugitive material and form a ceramic shell mold by sintering of the ceramic powder composition, introducing a molten composition including silicon into the shell mold to obtain the part in the shell mold, the molten composition infiltrating the porosity of the preform to form the ceramic matrix, and separating the shell mold from the part obtained.