公开(公告)号：US11919819B2

公开(公告)日：2024-03-05

申请号：US17861417

申请日：2022-07-11

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Nitin Garg ,  Olivier H. Sudre ,  Cristal Chan ,  John H. Shaw ,  Ben Callaway

IPC: C04B35/111 ,  C04B24/12 ,  C04B35/628 ,  C04B35/80 ,  C04B41/00 ,  F02C7/00

CPC classification number: C04B35/80 ,  C04B35/62868 ,  C04B35/62873 ,  C04B35/62894 ,  C04B35/62897 ,  F02C7/00 ,  C04B2235/3826 ,  C04B2235/5244 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2300/6033

Abstract: A ceramic matrix composite includes a ceramic matrix, fibers embedded in the ceramic matrix, and an interfacial coating system on each of the fibers. The interfacial coating system includes alternating layers of boron nitride layers of individual thicknesses of about 50 nanometers to 200 nanometers and carbon layers of individual thicknesses of less than 5 nanometers.

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.

公开(公告)号：US20230348334A1

公开(公告)日：2023-11-02

申请号：US18345518

申请日：2023-06-30

Applicant: Raytheon Technologies Corporation

Inventor： Ying She ,  Nitin Garg ,  Andrew J. Lazur ,  Olivier H. Sudre

IPC: C04B35/80 ,  C04B35/628 ,  C23C16/04 ,  C23C16/455

CPC classification number: C04B35/80 ,  C04B35/62863 ,  C04B35/62884 ,  C23C16/045 ,  C23C16/45557 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/614

Abstract: Disclosed herein is a chemical vapor infiltration method including flowing ceramic precursors through a preform and depositing a matrix material on the preform at a first gas infiltration pressure, increasing the gas filtration pressure to a second gas infiltration pressure, and lowering the gas infiltration pressure to a third gas infiltration pressure which is intermediate to the first and second gas infiltration pressures.

公开(公告)号：US20230027473A1

公开(公告)日：2023-01-26

申请号：US17383808

申请日：2021-07-23

Applicant: Raytheon Technologies Corporation

Inventor： Nitin Garg ,  Olivier H. Sudre ,  Richard Wesley Jackson

IPC: C04B41/45 ,  C04B41/00 ,  C04B35/80 ,  C04B41/50 ,  C04B41/87

Abstract: Disclosed is a coated composite comprising a seal coat disposed on a composite material wherein the seal coat comprises protective particles and a matrix.

公开(公告)号：US20230029877A1

公开(公告)日：2023-02-02

申请号：US17861417

申请日：2022-07-11

Applicant: Raytheon Technologies Corporation

Inventor： Nitin Garg ,  Olivier H. Sudre ,  Cristal Chan ,  John H. Shaw ,  Ben Callaway

IPC: C04B35/80 ,  F02C7/00 ,  C04B35/628

Abstract: A ceramic matrix composite includes a ceramic matrix, fibers embedded in the ceramic matrix, and an interfacial coating system on each of the fibers. The interfacial coating system includes alternating layers of boron nitride layers of individual thicknesses of about 50 nanometers to 200 nanometers and carbon layers of individual thicknesses of less than 5 nanometers.

公开(公告)号：US11691924B2

公开(公告)日：2023-07-04

申请号：US16798016

申请日：2020-02-21

Applicant: Raytheon Technologies Corporation

Inventor： Ying She ,  Nitin Garg ,  Andrew J. Lazur ,  Olivier H. Sudre

IPC: C04B35/80 ,  C04B35/628 ,  C23C16/04 ,  C23C16/455

CPC classification number: C04B35/80 ,  C04B35/62863 ,  C04B35/62884 ,  C23C16/045 ,  C23C16/45557 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/614

Abstract: Disclosed herein is a chemical vapor infiltration method including flowing ceramic precursors through a preform and depositing a matrix material on the preform at a first gas infiltration pressure, increasing the gas filtration pressure to a second gas infiltration pressure, and lowering the gas infiltration pressure to a third gas infiltration pressure which is intermediate to the first and second gas infiltration pressures.