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公开(公告)号：US20250059100A1
公开(公告)日：2025-02-20
申请号：US18721428
申请日：2022-12-14
Applicant: SAFRAN CERAMICS
Inventor： Franck LAMOUROUX , Simon Lucien René THIBAUD
IPC: C04B35/628 , C04B35/80
Abstract: A load for placement in a chemical vapor infiltration consolidation or densification installation, the load including fibrous preforms disposed in a shaper for consolidating or densifying fibrous preforms in the gas phase, the shaper including a plurality of shaping housings, each shaping housing being formed by a first surface and a second surface facing each other and being intended to receive a fibrous preform, each first or second surface including retaining elements projecting from the surface and extending to an end face intended to be in contact with the fibrous preform, each shaping housing extending between at least one gas inlet and at least one gas outlet positioned between the first surface and the second surface of the housing, the shaper including a start plate, an end plate and one or more intermediate plates positioned between the start plate and the end plate.
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公开(公告)号：US20250034048A1
公开(公告)日：2025-01-30
申请号：US18360591
申请日：2023-07-27
Applicant: Northrop Grumman Systems Corporation
Inventor： Benjamin W. C. Garcia , Maziar A. Behtash
IPC: C04B35/571 , B28B1/42 , C04B35/626 , C04B35/628 , C04B35/80 , F01D25/00 , F02K9/97
Abstract: A resin formulation is disclosed. The resin formulation includes, before cure, at least one polymer derived ceramic (PDC) resin, and carbon fibers. The carbon fibers may include one or more metals. The resin formulation may be at least substantially free of a solvent. Related articles and methods are also disclosed.
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公开(公告)号：US20250027418A1
公开(公告)日：2025-01-23
申请号：US18353196
申请日：2023-07-17
Applicant: RAYTHEON TECHNOLOGIES CORPORATION
Inventor： Christian X. Campbell , Aaron Tomich , Peter J. Rosenfeld
Abstract: An airfoil wall that includes a wishbone-shaped fiber layup structure that has first and second arms that merge into a single leg. The leg includes fiber tows from each of the arms and the tows are interwoven in the leg. Each of the arms includes a first section that is distal from the leg and a second section that is proximal to the leg. The first section defines a first thickness and a first fiber tow count. The second section defines a second thickness that is greater than the first thickness and a second fiber tow count that is greater than the first fiber tow count. The single leg defines a third thickness that is greater than the second thickness and a third fiber tow count that is greater than the second fiber tow count.
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公开(公告)号：US12195403B2
公开(公告)日：2025-01-14
申请号：US17302958
申请日：2021-05-17
Applicant: Rolls-Royce Corporation
Inventor： Jeffrey Crutchfield , Christopher Downie
IPC: C04B41/45 , B28B1/52 , B28B7/00 , B28B7/06 , B28B7/32 , B28B7/38 , C04B35/80 , B28B3/00 , B28B7/34
Abstract: A method of forming a bladder cast ceramic matrix composite (CMC) article including infiltrating a CMC substrate positioned in a cavity of a mold body with a slurry. The CMC substrate includes reinforcement material defining inner spaces. The slurry includes solid particles and a carrier material. During infiltration, the slurry at least partially fills at least a portion of the inner spaces of the CMC substrate. The method also includes inflating at least one bladder that is coupled to the mold body and disposed within the cavity such that a surface of the at least one bladder in an inflated configuration contacts at least one surface of the CMC substrate. The method also includes drying the slurry to remove at least a portion of the carrier material form an infiltrated CMC and deflating the at least one bladder.
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公开(公告)号：US20240417332A1
公开(公告)日：2024-12-19
申请号：US18706192
申请日：2022-10-31
Applicant: Kuraray Co., Ltd.
Inventor： Yoshinori Hitomi , Akira Imagawa , Atsuhisa Ogawa , Satoshi Katsuya , Saburo Hada
IPC: C04B35/80 , C04B14/28 , C04B16/06 , C04B28/02 , C04B111/00 , C04B111/40
Abstract: A porous formed plate includes 35 to 70% by mass of a substance not involved in a pozzolanic reaction; 20 to 61.5% by mass of a cement; 1 to 3% by mass of synthetic fibers; and 2.5 to 7% by mass of a pulp, wherein, in a pore size distribution of the formed plate that is determined by a mercury intrusion method, a ratio (B)/(A) of a pore volume (B) in a range of 6 to 560 nm with respect to a pore volume (A) in a range of 660 to 9,100 nm is 1.70 to 6.0.
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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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公开(公告)号：US20240376017A1
公开(公告)日：2024-11-14
申请号：US18196594
申请日：2023-05-12
Applicant: Raytheon Technologies Corporation
Inventor： Christian X. Campbell , Kathryn S. Read , James T. Roach , Robert A. White, III , Daniel Josiah Whitney
IPC: C04B35/80 , C04B35/628 , C04B35/64 , C04B35/657
Abstract: A method of forming a ceramic matrix composite includes fabricating a space filling insert by assembling the space filling insert from a fibrous ceramic material, placing the space filling insert into a tooling fixture, the tooling fixture having an internal shape complementary to a shape of the insert, and infiltrating the space filling insert with a first ceramic material. The method further includes forming a preform by laying up a plurality of fibrous ceramic plies and inserting the infiltrated space filling insert into a void defined by the plurality of plies. The method further includes infiltrating the preform with a second ceramic material.
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公开(公告)号：US20240375394A1
公开(公告)日：2024-11-14
申请号：US18196592
申请日：2023-05-12
Applicant: Raytheon Technologies Corporation
Inventor： Russell Kim , Jamshid Kavosi , James T. Roach
IPC: B32B37/24 , B32B3/04 , B32B3/12 , B32B7/09 , B32B9/00 , B32B9/04 , B32B38/00 , C04B35/565 , C04B35/80
Abstract: A method of reinforcing a ceramic sandwich structure includes forming a ceramic core, assembling the sandwich structure by disposing the core between and in physical contact with a first panel and a second panel, and weaving a plurality of z-fibers at least partially through a thickness of the sandwich structure.
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公开(公告)号：US20240368041A1
公开(公告)日：2024-11-07
申请号：US18775501
申请日：2024-07-17
Applicant: RTX Corporation
Inventor： Paul Sheedy , Wayde R. Schmidt , Neal Magdefrau
IPC: C04B35/628 , C04B35/622 , C04B35/80 , D01F11/10 , D06M11/83
Abstract: Disclosed is a method of making a high temperature fiber including incorporating an inorganic atom into a polymer precursor fiber to form a modified polymer precursor fiber and converting the modified polymer precursor fiber to a high temperature fiber having a bonded inorganic atom.
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公开(公告)号：US20240308921A1
公开(公告)日：2024-09-19
申请号：US18123037
申请日：2023-03-17
Applicant: Raytheon Technologies Corporation
Inventor： Brendan Lenz , Molly Kole
IPC: C04B35/80 , C04B35/628 , C04B35/64
CPC classification number: C04B35/80 , C04B35/62863 , C04B35/62884 , C04B35/64 , C04B2235/3826 , C04B2235/5244 , C04B2235/5252 , C04B2235/612
Abstract: A needle array suitable for perforating a fibrous preform includes a backplate, a plurality of needles removably attached to and extending away from the backplate, and a collar disposed around each of the plurality of needles. Each of the plurality of needles includes a metallic body, and a polymer sheath covering the metallic body.
