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公开(公告)号：US11802093B2
公开(公告)日：2023-10-31
申请号：US16550839
申请日：2019-08-26
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor： Xia Tang , Paul Sheedy , Tania Bhatia Kashyap , Wayde R. Schmidt , Daniel G. Goberman
IPC: C04B41/87 , B32B9/00 , C04B35/14 , C04B35/56 , C04B35/565 , C04B35/195
CPC classification number: C04B41/87 , B32B9/005 , C04B35/14 , C04B35/195 , C04B35/5603 , C04B35/565 , B32B2255/20 , B32B2264/102 , B32B2307/308 , B32B2307/7265
Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.
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公开(公告)号：US20220081750A1
公开(公告)日：2022-03-17
申请号：US17403296
申请日：2021-08-16
Applicant: Raytheon Technologies Corporation
Inventor： Xia Tang , Paul Sheedy , Tania Bhatia Kashyap , Wayde R. Schmidt , Daniel G. Goberman
Abstract: An article includes a silicon oxycarbide-based layer that has Si, O, and C in a covalently bonded network. The silicon oxycarbide-based layer has first and second opposed surfaces. A calcium-magnesium alumino-silicate-based layer is interfaced with the first surface of the silicon oxycarbide-based layer.
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公开(公告)号：US20250026691A1
公开(公告)日：2025-01-23
申请号：US18354119
申请日：2023-07-18
Applicant: Raytheon Technologies Corporation
Inventor： Paul Sheedy , Wayde R. Schmidt , Tania Bhatia Kashyap
Abstract: A ceramic article includes a ceramic matrix composite that has a porous reinforcement structure and a ceramic matrix within pores of the porous reinforcement structure. The ceramic matrix composite includes a surface zone comprised of an exterior surface of the ceramic matrix composite and pores that extend from the exterior surface into the ceramic matrix composite. A glaze material seals the surface zone within the pores of the surface zone and on the exterior surface of the surface zone as an exterior glaze layer on the ceramic matrix composite. The glaze material is a glass or glass-ceramic material. The ceramic matrix composite includes an interior zone under the surface zone, and the interior zone is free of any of the glaze material and has a greater porosity than the surface zone.
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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.
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公开(公告)号：US12091756B2
公开(公告)日：2024-09-17
申请号：US17403296
申请日：2021-08-16
Applicant: Raytheon Technologies Corporation
Inventor： Xia Tang , Paul Sheedy , Tania Bhatia Kashyap , Wayde R. Schmidt , Daniel G. Goberman
CPC classification number: C23C4/12 , C23C4/04 , C23C16/32 , C23C16/401 , C23C28/04 , F01D5/288 , F16J15/453 , F05D2240/11 , F05D2240/12 , F05D2240/30 , F05D2240/35 , F05D2300/21 , F05D2300/211 , F05D2300/2261 , F05D2300/611
Abstract: An article includes a silicon oxycarbide-based layer that has Si, O, and C in a covalently bonded network. The silicon oxycarbide-based layer has first and second opposed surfaces. A calcium-magnesium alumino-silicate-based layer is interfaced with the first surface of the silicon oxycarbide-based layer.
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Patent Agency Ranking
公开(公告)号：US20230211374A1
公开(公告)日：2023-07-06
申请号：US18120686
申请日：2023-03-13
Applicant: Raytheon Technologies Corporation
Inventor： James T. Beals , Tania Bhatia Kashyap
CPC classification number: B05D3/142 , F01D5/288 , F05D2300/6033 , F05D2300/611 , F05D2240/30 , F05D2230/90 , F05D2240/12
Abstract: A method for coating a ceramic matrix composite substrate with an environmental barrier coating includes the steps of: treating a surface of a ceramic matrix composite substrate to adjust wettability of the surface; and applying an aqueous slurry-based environmental barrier coating to the surface. The treating step can be a plasma treatment to remove organic contaminants, and can also be a treatment to modify oxidative state of the surface. The treatment can produce a surface for treatment that is hydrophilic and has a contact angle with aqueous-slurry coating materials of less than 40 degrees.
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公开(公告)号：US20220177379A1
公开(公告)日：2022-06-09
申请号：US17536216
申请日：2021-11-29
Applicant: Raytheon Technologies Corporation
Inventor： Shahram Amini , Wayde R. Schmidt , Tania Bhatia Kashyap , Mark A. Hermann , Paul Sheedy , Andi M. Limarga , Michael G. McCaffrey
IPC: C04B35/80 , C04B35/532 , C04B35/524 , B28B1/24 , B28B1/52 , C04B38/00
Abstract: A disclosed method of forming a ceramic article includes forming a pre-ceramic polymer article within a mold tool, and performing a first pyrolizing step on the initial pre-ceramic polymer article to form a ceramic article. The method further includes performing at least one pre-heat treatment polymer infiltration and pyrolizing (PIP) cycle on the ceramic article and an initial heat treatment cycle of the ceramic article after the at least one pre-heat treatment PIP cycle. Subsequent PIP cycles and heat treatment cycles are performed in combination to form a ceramic article including a desired density.
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公开(公告)号：US20210171409A1
公开(公告)日：2021-06-10
申请号：US17269083
申请日：2019-07-24
Applicant: Raytheon Technologies Corporation
Inventor： Mark T. Ucasz , Tania Bhatia Kashyap
Abstract: In a method for repairing a coated article, the article has: a ceramic matrix composite (CMC) substrate; and a coating system having a plurality of layers. A damage site at least partially penetrates at least one of the layers. The method includes: applying a slurry of a repair material to the damage site for repairing a first of the penetrated layers; and after the applying, heating the repair material with a plasma torch.
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公开(公告)号：US12246343B2
公开(公告)日：2025-03-11
申请号：US18120686
申请日：2023-03-13
Applicant: Raytheon Technologies Corporation
Inventor： James T. Beals , Tania Bhatia Kashyap
Abstract: A method for coating a ceramic matrix composite substrate with an environmental barrier coating includes the steps of: treating a surface of a ceramic matrix composite substrate to adjust wettability of the surface; and applying an aqueous slurry-based environmental barrier coating to the surface. The treating step can be a plasma treatment to remove organic contaminants, and can also be a treatment to modify oxidative state of the surface. The treatment can produce a surface for treatment that is hydrophilic and has a contact angle with aqueous-slurry coating materials of less than 40 degrees.
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公开(公告)号：US12145893B2
公开(公告)日：2024-11-19
申请号：US17269083
申请日：2019-07-24
Applicant: Raytheon Technologies Corporation
Inventor： Mark T. Ucasz , Tania Bhatia Kashyap
Abstract: In a method for repairing a coated article, the article has: a ceramic matrix composite (CMC) substrate; and a coating system having a plurality of layers. A damage site at least partially penetrates at least one of the layers. The method includes: applying a slurry of a repair material to the damage site for repairing a first of the penetrated layers; and after the applying, heating the repair material with a plasma torch.
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