公开(公告)号：US11161792B2

公开(公告)日：2021-11-02

申请号：US16508562

申请日：2019-07-11

Applicant: Rolls-Royce High Temperature Composites Inc.

Inventor： Thomas E. Krause ,  Robert Shinavski ,  Kevin Mark Lukhard

IPC: C04B41/50 ,  C04B41/45 ,  B28B13/02 ,  C04B35/626 ,  C04B35/80 ,  F01D5/28

Abstract: A method for infiltrating a porous preform for a gas turbine engine is provided, which comprises providing a chamber for infiltrating a porous preform. The porous preform is positioned within a slurry confinement fixture within the chamber. A vacuum is created in the chamber. A solvent is added to the slurry confinement fixture until a pressure in the chamber is substantially equal to an equilibrium partial pressure of the solvent. A slurry is added to the slurry confinement fixture. The slurry includes the solvent and a particulate. The pressure in the chamber is increased, and the slurry is urged into the porous preform.

公开(公告)号：US20210009479A1

公开(公告)日：2021-01-14

申请号：US16508562

申请日：2019-07-11

Applicant: Rolls-Royce High Temperature Composites Inc.

Inventor： Thomas E. Krause ,  Robert Shinavski ,  Kevin Mark Lukhard

IPC: C04B41/50 ,  C04B35/80 ,  C04B41/45

Abstract: A method for infiltrating a porous preform for a gas turbine engine is provided, which comprises providing a chamber for infiltrating a porous preform. The porous preform is positioned within a slurry confinement fixture within the chamber. A vacuum is created in the chamber. A solvent is added to the slurry confinement fixture until a pressure in the chamber is substantially equal to an equilibrium partial pressure of the solvent. A slurry is added to the slurry confinement fixture. The slurry includes the solvent and a particulate. The pressure in the chamber is increased, and the slurry is urged into the porous preform.