公开(公告)号：US20240308921A1

公开(公告)日：2024-09-19

申请号：US18123037

申请日：2023-03-17

申请人： Raytheon Technologies Corporation

发明人： Brendan Lenz ,  Molly Kole

IPC分类号： C04B35/80 ,  C04B35/628 ,  C04B35/64

CPC分类号： C04B35/80 ,  C04B35/62863 ,  C04B35/62884 ,  C04B35/64 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/612

摘要： 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.

公开(公告)号：US12060302B2

公开(公告)日：2024-08-13

申请号：US17264338

申请日：2019-08-06

申请人： UBE CORPORATION

发明人： Yuusuke Tominaga ,  Hiroyuki Yamaoka ,  Kouichirou Suyama ,  Hideki Ozawa ,  Mao Sumino

IPC分类号： C04B35/622 ,  C04B35/64 ,  C04B35/80 ,  D01D5/08 ,  D01F9/10

CPC分类号： C04B35/62281 ,  C04B35/64 ,  C04B35/80 ,  D01D5/08 ,  D01F9/10 ,  C04B2235/5244 ,  C04B2235/656 ,  C04B2235/658 ,  C04B2235/661 ,  C04B2235/75

摘要： A crystalline silicon carbide fiber containing silicon carbide and boron nitride, the crystalline silicon carbide fiber having a content of Si of 64% to 72% by weight, a content of C of 28% to 35% by weight, and a content of B of 0.1% to 3.0% by weight, and including, at a surface portion, a composition gradient layer in which a content of silicon carbide increases while a content of boron nitride decreases toward a depth direction.

公开(公告)号：US12054433B2

公开(公告)日：2024-08-06

申请号：US17018921

申请日：2020-09-11

申请人： General Atomics

发明人： Jiping Zhang ,  Austin Travis ,  Jonas Opperman ,  George Jacobsen

IPC分类号： C04B35/80 ,  C04B35/628 ,  C04B35/65 ,  C04B35/657

CPC分类号： C04B35/80 ,  C04B35/62839 ,  C04B35/62863 ,  C04B35/62886 ,  C04B35/65 ,  C04B35/657 ,  C04B2235/3826 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/616

摘要： Disclosed are techniques and methods for producing silicon carbide and ceramic matrix composites from hydrocarbons. In one aspect, a method includes preforming a shape using silicon carbide fibers placed into a chamber, evacuating the chamber causing a silicon and polymer slurry to enter the chamber, and pressurizing the chamber causing the silicon and polymer slurry to permeate the silicon carbide fibers. The method includes heating the chamber to cause pyrolysis of the polymer and a hydrocarbon passed into the chamber into carbon and hydrogen gas. The carbon from the pyrolyzed polymer and hydrocarbon provide a coating of carbon on the silicon in the silicon and polymer slurry. The method includes heating the chamber to a higher temperature causing the silicon to melt and react with the carbon to form silicon carbide. The formed silicon carbide and the silicon carbide fibers form the ceramic matrix composite.

公开(公告)号：US20240246865A1

公开(公告)日：2024-07-25

申请号：US18421843

申请日：2024-01-24

申请人： Lawrence Livemore National Security, LLC

发明人： Gabriella Corrinna Susanna King ,  Wyatt L. Du Frane ,  Isabel Robin Crystal ,  James Timothy Cahill

IPC分类号： C04B35/80 ,  C04B35/626 ,  C04B35/628 ,  C04B35/634 ,  C04B35/638

CPC分类号： C04B35/80 ,  C04B35/62635 ,  C04B35/62655 ,  C04B35/62857 ,  C04B35/62886 ,  C04B35/62892 ,  C04B35/63416 ,  C04B35/638 ,  C04B2235/3813 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5436

摘要： Flowable fiber composite materials that include at least one fiber component and at least one powder component that form composite particles. Methods of making the fiber composite materials include forming and mixing a suspension and spray drying the suspension to form particles.

公开(公告)号：US20240228388A9

公开(公告)日：2024-07-11

申请号：US17970993

申请日：2022-10-21

申请人： Raytheon Technologies Corporation

发明人： Evan B. Callaway

IPC分类号： C04B35/628 ,  C04B35/565 ,  C04B41/45 ,  C04B41/50

CPC分类号： C04B35/62868 ,  C04B35/565 ,  C04B35/62873 ,  C04B41/457 ,  C04B41/5059 ,  C04B2235/5244 ,  C04B2235/614

摘要： A coated fiber structure for use in a ceramic matrix composite comprises a fiber extending along a fiber axis and an interface coating arrangement applied to and circumscribing the fiber. The interface coating arrangement comprises: a first boron nitride layer extending coaxially about and in direct contact with the fiber, a first silicon-doped boron nitride layer extending coaxially about and in direct contact with the first boron nitride layer, a carbon layer extending coaxially about and in direct contact with the first silicon-doped boron nitride layer, a second boron nitride layer extending coaxially about and in direct contact with the carbon layer, and a second silicon-doped boron nitride layer extending coaxially about and in direct contact with the second boron nitride layer. A silicon content of the first silicon-doped boron nitride layer is higher than the silicon content of the second silicon-doped boron nitride layer.

公开(公告)号：US12024474B2

公开(公告)日：2024-07-02

申请号：US17850430

申请日：2022-06-27

申请人： RTX CORPORATION

发明人： David C. Jarmon

IPC分类号： C04B35/80 ,  B28B1/00 ,  B28B11/12 ,  C04B35/01 ,  C04B35/565 ,  C04B35/571 ,  C04B35/573 ,  C04B35/622 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  C04B35/76 ,  C04B35/83 ,  C04B37/00 ,  D03D25/00 ,  F01D5/00 ,  F01D9/00 ,  F01D11/00 ,  F01D25/00 ,  F01D25/24 ,  F01D25/28 ,  F01D25/30 ,  F02C7/28 ,  F02K1/82 ,  F23R3/00 ,  F23R3/28 ,  F23R3/60

CPC分类号： C04B35/80 ,  B28B1/001 ,  B28B1/002 ,  B28B11/12 ,  C04B35/01 ,  C04B35/565 ,  C04B35/571 ,  C04B35/573 ,  C04B35/62227 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  C04B35/76 ,  C04B35/83 ,  C04B37/001 ,  D03D25/005 ,  F01D5/00 ,  F01D9/00 ,  F01D11/00 ,  F01D25/00 ,  F01D25/005 ,  F01D25/243 ,  F01D25/246 ,  F01D25/28 ,  F01D25/30 ,  F02C7/28 ,  F02K1/822 ,  F23R3/002 ,  F23R3/007 ,  F23R3/283 ,  F23R3/60 ,  C04B2235/48 ,  C04B2235/5208 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5256 ,  C04B2235/612 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2237/38 ,  C04B2237/385 ,  C04B2237/60 ,  C04B2237/61 ,  C04B2237/80 ,  C04B2237/84 ,  F05D2220/323 ,  F05D2230/10 ,  F05D2230/314 ,  F05D2240/91 ,  F05D2260/30 ,  F05D2260/31 ,  F05D2300/6033 ,  F23M2900/05004 ,  Y02T50/60

摘要： A gas turbine engine component includes a gas turbine engine component body formed of a ceramic matrix composite material having at least one fastener integrally formed with the gas turbine engine component body as a single-piece structure. The gas turbine engine component body initially comprises a rigidized preform structure formed from a polymer based material. The at least one fastener connects the gas turbine engine component body to an engine support structure.

公开(公告)号：US12006265B2

公开(公告)日：2024-06-11

申请号：US17072100

申请日：2020-10-16

申请人： NORTHWESTERN POLYTECHNICAL UNIVERSITY

发明人： Laifei Cheng ,  Fang Ye ,  Chuchu Guo ,  Litong Zhang

IPC分类号： C04B35/80 ,  C04B35/622

CPC分类号： C04B35/62281 ,  C04B35/80 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5252 ,  C04B2235/5264 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/6583 ,  C04B2235/77

摘要： Process for the preparation of a ceramic nanowire preform, in particular, a process for the preparation of a ceramic nanowire preform by combining a template technique and a preceramic polymer conversion technique. The process uses carbonaceous material as a template, and prepares an isotropic ceramic nanowire preform by controlling the ratio of a precursor to a solvent, the amount of a catalyst and the ratio of a prepared precursor solution to the carbonaceous template, wherein the preform is isotropic and has lower bulk density and higher volume fraction.

公开(公告)号：US20240132413A1

公开(公告)日：2024-04-25

申请号：US17970993

申请日：2022-10-20

申请人： Raytheon Technologies Corporation

发明人： Evan B. Callaway

IPC分类号： C04B35/628 ,  C04B35/565 ,  C04B41/45 ,  C04B41/50

CPC分类号： C04B35/62868 ,  C04B35/565 ,  C04B35/62873 ,  C04B41/457 ,  C04B41/5059 ,  C04B2235/5244 ,  C04B2235/614

摘要： A coated fiber structure for use in a ceramic matrix composite comprises a fiber extending along a fiber axis and an interface coating arrangement applied to and circumscribing the fiber. The interface coating arrangement comprises: a first boron nitride layer extending coaxially about and in direct contact with the fiber, a first silicon-doped boron nitride layer extending coaxially about and in direct contact with the first boron nitride layer, a carbon layer extending coaxially about and in direct contact with the first silicon-doped boron nitride layer, a second boron nitride layer extending coaxially about and in direct contact with the carbon layer, and a second silicon-doped boron nitride layer extending coaxially about and in direct contact with the second boron nitride layer. A silicon content of the first silicon-doped boron nitride layer is higher than the silicon content of the second silicon-doped boron nitride layer.

公开(公告)号：US20240109814A1

公开(公告)日：2024-04-04

申请号：US17957605

申请日：2022-09-30

申请人： Raytheon Technologies Corporation

发明人： Raymond Surace ,  Brendan Lenz

IPC分类号： C04B35/622

CPC分类号： C04B35/62281 ,  C04B2235/5244 ,  C04B2235/614

摘要： An assembly for use in releasing a preform from a tooling fixture comprises a solid body engageable with the fixture via a seal, a manifold formed in the solid body and in flow communication with the preform via a plurality of holes in the tooling fixture, and a fluid source in flow communication with the manifold and configured to supply fluid to the manifold. The fluid comprises at least one of a gas and a slurry.

公开(公告)号：US11932942B2

公开(公告)日：2024-03-19

申请号：US17842205

申请日：2022-06-16

申请人： SAFRAN CERAMICS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

发明人： Arnaud Delehouze ,  Eric Bouillon ,  Adrien Delcamp ,  Cédric Descamps

IPC分类号： C23C16/54 ,  C04B35/628 ,  C04B35/80 ,  C23C16/26 ,  C23C16/32 ,  C23C16/34 ,  C23C16/46

CPC分类号： C23C16/545 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/80 ,  C23C16/26 ,  C23C16/325 ,  C23C16/342 ,  C23C16/46 ,  C04B2235/5244 ,  C04B2235/5248

摘要： A process for depositing a coating on a continuous fibre of carbon or silicon carbide from a precursor of the coating, includes heating a segment of the fibre in the presence of the coating precursor in a microwave field so as to bring the surface of the segment to a temperature allowing the coating to form on the segment from the coating precursor, wherein the segment of fibre is in the presence of a supercritical phase of the precursor of the coating in the reactor and the coating is formed by supercritical phase chemical deposition in the reactor.