公开(公告)号：US20230192556A1

公开(公告)日：2023-06-22

申请号：US17554657

申请日：2021-12-17

Applicant: Raytheon Technologies Corporation

Inventor： Mary Colby ,  Ying She

IPC: C04B35/565 ,  C04B35/634

CPC classification number: C04B35/565 ,  C04B35/6342 ,  C04B35/63416 ,  C04B2235/96 ,  C04B2235/404 ,  C04B2235/616 ,  C04B2235/5256

Abstract: A method of forming a ceramic matrix composite includes depositing particles on a ceramic fabric formed from a plurality of ceramic tows, applying a binder to at least the particles to form a stabilized ceramic fabric, forming a preform using the stabilized ceramic fabric, and densifying the preform. The ceramic tows are formed from a first material and the particles are formed from at least a second material.

公开(公告)号：US20230174433A1

公开(公告)日：2023-06-08

申请号：US17541947

申请日：2021-12-03

Applicant: Raytheon Technologies Corporation

Inventor： Richard Wesley Jackson ,  Mary Colby ,  Tyler G. Vincent

IPC: C04B35/80 ,  C04B41/45 ,  C04B41/50 ,  C04B41/87

CPC classification number: C04B35/80 ,  C04B41/4539 ,  C04B41/4584 ,  C04B41/5057 ,  C04B41/5027 ,  C04B41/87 ,  C04B2235/5216

Abstract: A method includes forming a ceramic matrix composite component by infiltrating an array of ceramic-based fibers with a ceramic-based matrix; forming a plurality of cooling holes in the ceramic matrix composite component; applying a slurry of particles in a carrier fluid to the ceramic matrix composite component such that the slurry passes through the cooling holes and wicks into the ceramic matrix composite material; and processing the ceramic matrix composite component to remove the carrier fluid, thereby leaving a filler at a wall surface of the plurality of cooling holes. A component is also disclosed.

公开(公告)号：US20230173623A1

公开(公告)日：2023-06-08

申请号：US17541819

申请日：2021-12-03

Applicant: Raytheon Technologies Corporation

Inventor： Kendall J. Schneider ,  Alan C. Barron ,  Mary Colby

IPC: B23P6/00 ,  B23P9/02 ,  F01D5/14

CPC classification number: B23P6/002 ,  B23P9/02 ,  F01D5/147 ,  F05D2230/80 ,  F05D2230/10 ,  F05D2300/6033

Abstract: A method of forming a component for a gas turbine engine using ceramic matrix composites (CMCs) is provided. The method includes preforming the aerodynamic component into an initial desired shape using the CMCs, executing partial densification of the CMCs, repeating the preforming operations and the executing of the partial densification until a final desired shape of the aerodynamic component is achieved, machining or cutting the CMCs during one or more of the preforming operations and the executing of the partial densification to remove defects from the CMCs and executing a full densification of the CMCs.

公开(公告)号：US20240300863A1

公开(公告)日：2024-09-12

申请号：US18118460

申请日：2023-03-07

Applicant: Raytheon Technologies Corporation

Inventor： Daniel P. Preuss ,  Andrew Joseph Lazur ,  Brendan Lenz ,  Lane M. Thornton ,  Mary Colby

IPC: C04B41/45

CPC classification number: C04B41/4529 ,  C04B41/457 ,  C04B41/4584 ,  C04B2235/614

Abstract: A tooling fixture suitable for use in infiltrating a fibrous preform with a flow of reactant gas includes at least one wall. The at least one wall includes an outer surface and opposing inner surface defining a thickness therebetween, and a plurality of holes extending through the thickness. Each hole of the plurality of holes includes an inlet at the outer surface, an outlet at the inner surface, a transition point between the inlet and the outlet, and a first corner defined by the outer surface and the inlet. An angle of the first corner is less than 90 degrees, each hole of the plurality of holes has a first diameter at the inlet and a second diameter at the outlet, and the second diameter is less than the first diameter.

公开(公告)号：US20240300142A1

公开(公告)日：2024-09-12

申请号：US18118443

申请日：2023-03-07

Applicant: Raytheon Technologies Corporation

Inventor： Robert A. White, III ,  Andrew Joseph Lazur ,  Mary Colby ,  Howard J. Liles ,  Robin H. Fernandez

IPC: B28B21/48 ,  B28B7/30 ,  C04B41/45

CPC classification number: B28B21/48 ,  B28B7/30 ,  C04B41/4531 ,  C04B2235/614

Abstract: A mandrel suitable for supporting an airfoil preform includes a first piece extending along a longitudinal axis of the mandrel, and a second piece in physical contact with the first piece at first interface region and extending along the longitudinal axis of the mandrel. The first piece is formed from a first material, and the second piece is formed from a second material.

公开(公告)号：US20230278150A1

公开(公告)日：2023-09-07

申请号：US18305163

申请日：2023-04-21

Applicant: Raytheon Technologies Corporation

Inventor： Kendall J. Schneider ,  Alan C. Barron ,  Mary Colby

IPC: B23P15/02 ,  B24B7/10

CPC classification number: B23P15/02 ,  B24B7/10

Abstract: A method of forming an aerodynamic component for use in a gas turbine engine using ceramic matrix composites (CMCs) is provided. The method includes executing a full densification of the CMCs once a final shape of the aerodynamic component is achieved, identifying first and second sectors of an exterior surfaces of the aerodynamic component which have a surface roughness of less than a first roughness level and identifying second sectors of the exterior surface of the component which have a surface roughness of greater than a second roughness level, machining the first sectors to increase the surface roughness to greater than the first roughness level and machining the second sectors to decrease the surface roughness to less than the second roughness level.

公开(公告)号：US11633816B1

公开(公告)日：2023-04-25

申请号：US17541826

申请日：2021-12-03

Applicant: Raytheon Technologies Corporation

Inventor： Kendall J. Schneider ,  Alan C. Barron ,  Mary Colby

IPC: B23P15/02 ,  B24B7/10

Abstract: A method of forming an aerodynamic component for use in a gas turbine engine using ceramic matrix composites (CMCs) is provided. The method includes executing a full densification of the CMCs once a final shape of the aerodynamic component is achieved, identifying first and second sectors of an exterior surfaces of the aerodynamic component which have a surface roughness of less than a first roughness level and identifying second sectors of the exterior surface of the component which have a surface roughness of greater than a second roughness level, machining the first sectors to increase the surface roughness to greater than the first roughness level and machining the second sectors to decrease the surface roughness to less than the second roughness level.

公开(公告)号：US20220178262A1

公开(公告)日：2022-06-09

申请号：US17541828

申请日：2021-12-03

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Olivier H. Sudre ,  Nitin Garg ,  John H. Shaw ,  Kathryn S. Reed ,  Cristal Chan ,  Mary Colby ,  Andrew J. Lazur ,  Tania Bhatia Kashyap

IPC: F01D5/28

Abstract: A ceramic matrix composite includes a plurality of ceramic fibers and an interface coating disposed on the plurality of ceramic fibers. The interface coating includes a carbon-based layer disposed on each ceramic fiber of the plurality of ceramic fibers and a boron-nitride based layer disposed on the first carbon-based layer. The ceramic matrix composite also includes a ceramic matrix surrounding the plurality of ceramic fibers. A ceramic matrix composite and a method of forming a ceramic matrix composite component are also disclosed.