公开(公告)号：US12059819B2

公开(公告)日：2024-08-13

申请号：US17076328

申请日：2020-10-21

申请人： CANON KABUSHIKI KAISHA

发明人： Kanako Oshima ,  Nobuhiro Yasui ,  Hisato Yabuta ,  Makoto Kubota ,  Yoshinori Kotani ,  Yoshihiro Ohashi

IPC分类号： B33Y10/00 ,  B28B1/00 ,  B28B11/04 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C04B35/119 ,  C04B35/14 ,  C04B35/628 ,  C04B35/632 ,  C04B35/64 ,  C04B35/653

CPC分类号： B28B1/001 ,  B28B11/048 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C04B35/119 ,  C04B35/14 ,  C04B35/62886 ,  C04B35/632 ,  C04B35/64 ,  C04B35/653 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/6026 ,  C04B2235/616 ,  C04B2235/665

摘要： Provided are a method of manufacturing a ceramic article in which the improvement of mechanical strength, wear resistance, and machinability is achieved using a direct modeling system, and a ceramic article. The manufacturing method includes the steps of: (i) arranging powder containing ceramics as a main component on a base; (ii) irradiating a part or an entirety of the arranged powder with an energy beam to melt and solidify the powder, to thereby obtain an intermediate modeled article; (iii) causing the modeled article to absorb a metal component-containing liquid to impregnate the modeled article therewith; and (iv) subjecting the modeled article having absorbed the metal component-containing liquid to heat treatment.

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：US20240088351A1

公开(公告)日：2024-03-14

申请号：US17906770

申请日：2022-09-02

申请人： UNIFRAX I LLC

发明人： Donghui ZHAO ,  Bruce K. ZOITOS ,  Wenbo CHENG ,  Adam KELSALL ,  Chad D. CANNAN

IPC分类号： H01M4/36 ,  C04B35/628 ,  C04B35/64 ,  C04B35/80 ,  D01F9/12 ,  H01M4/38 ,  H01M4/583

CPC分类号： H01M4/364 ,  C04B35/62873 ,  C04B35/62886 ,  C04B35/64 ,  C04B35/80 ,  D01F9/12 ,  H01M4/386 ,  H01M4/583 ,  D10B2505/00 ,  H01M2004/021

摘要： A composite fiber includes a porous silicon phase including elemental silicon and a porous carbon phase including elemental carbon. The silicon phase and the carbon phase form an intertwined network structure in the composite fiber such that each of the silicon phase and the carbon phase is interconnected and continuous throughout the composite fiber. The silicon phase and the carbon phase together constitute at least 50 wt % of the composite fiber.

公开(公告)号：US20240083823A1

公开(公告)日：2024-03-14

申请号：US18508839

申请日：2023-11-14

申请人： Northrop Grumman Systems Corporation

发明人： Talbot P. Thrasher ,  Timothy E. Dominick

IPC分类号： C04B35/83 ,  B29C64/118 ,  B29C64/30 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y80/00 ,  C04B35/622 ,  C04B35/628 ,  C04B35/64

CPC分类号： C04B35/83 ,  B29C64/118 ,  B29C64/30 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y80/00 ,  C04B35/6224 ,  C04B35/62272 ,  C04B35/62844 ,  C04B35/62886 ,  C04B35/64 ,  B29K2071/00

摘要： Methods for fabricating high-temperature composite structures (e.g., structures comprising carbon-carbon composite materials or ceramic composite matrix (CMC) materials and configured for use at temperature at or exceeding about 2000° F. (1093° C.)) include forming precursor structures by additive manufacturing (“AM”) (e.g., “3D printing”) with a filament drawn from a spool. The precursor structures are exposed to high temperatures to pyrolyze a precursor matric material of the initial 3D printed structure. A liquid resin is used to impregnate the pyrolyzed structure, to densify the structure into a near-net final shape. Use of expensive and time-consuming molds and post-processing machining may be avoided. Large, unitary, integrally formed parts conducive for use in high-temperature environments may be formed using the methods of the disclosure.

公开(公告)号：US11795114B1

公开(公告)日：2023-10-24

申请号：US17300724

申请日：2021-10-05

申请人： Witold Kowbel

发明人： Witold Kowbel

IPC分类号： C04B35/83 ,  C04B35/626 ,  C04B35/628 ,  C04B35/64 ,  C09K5/14

CPC分类号： C04B35/83 ,  C04B35/6264 ,  C04B35/6265 ,  C04B35/62873 ,  C04B35/62886 ,  C04B35/62892 ,  C04B35/64 ,  C09K5/14 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/616 ,  C04B2235/656 ,  C04B2235/9607

摘要： This innovation provides for a revolutionary advancement in the area of very thick and very high thermal conductivity carbon-carbon (C—C) composites for both commercial and military. Novel, surface treated to achieve desired chemistry, exhibiting no agglomeration, carbon-based fillers are used enabling stable slurries up to 45 wt % solids to be used in the composite pre-pregging for 1-D and 2-D, 2-5 D and 3-D preforms infiltration. The need for carbonization is eliminated. No closed porosity C—C composites are produced. Up to 12″ thick C—C composites with no density gradient and thermal conductivity in excess of 650 W/mK were fabricated via chemically induced graphitization.

公开(公告)号：US11697880B2

公开(公告)日：2023-07-11

申请号：US16325614

申请日：2017-08-16

申请人： SERAM COATINGS AS

发明人： Nuria Espallargas ,  Fahmi Mubarok

IPC分类号： B22F1/18 ,  B32B5/16 ,  C23C4/10 ,  C04B35/628 ,  C23C4/134 ,  C04B35/565 ,  C04B35/622 ,  C23C18/18 ,  C23C18/34 ,  C23C4/06 ,  C04B35/583 ,  C23C18/16 ,  C04B35/563 ,  C23C18/08 ,  C23C18/12 ,  C04B35/584 ,  C23C18/36 ,  B22F1/17 ,  B22F1/148 ,  C04B35/626 ,  C23C18/32

CPC分类号： C23C4/10 ,  B22F1/148 ,  B22F1/17 ,  C04B35/563 ,  C04B35/565 ,  C04B35/583 ,  C04B35/584 ,  C04B35/62222 ,  C04B35/62645 ,  C04B35/62695 ,  C04B35/62842 ,  C04B35/62886 ,  C23C4/06 ,  C23C4/134 ,  C23C18/08 ,  C23C18/1216 ,  C23C18/1245 ,  C23C18/1295 ,  C23C18/1635 ,  C23C18/1689 ,  C23C18/1692 ,  C23C18/1696 ,  C23C18/1886 ,  C23C18/1893 ,  C23C18/32 ,  C23C18/34 ,  C23C18/36 ,  B22F2999/00 ,  C04B2235/3826 ,  C04B2235/405 ,  C04B2235/5436 ,  B22F2999/00 ,  B22F1/17 ,  B22F9/24

摘要： A process comprising: (i) coating particles of silicon carbide, silicon nitride, boron carbide or boron nitride with a metal alloy or metal layer; (ii) agglomerating the particles of step (i); thermally spraying the agglomerated metal or metal alloy coated particles onto a substrate to provide a coating thereon.

公开(公告)号：US11643367B2

公开(公告)日：2023-05-09

申请号：US16595488

申请日：2019-10-08

申请人： National Chung-Shan Institute of Science and Technology

发明人： Mau-Yi Huang ,  Hao-Chung Hsiao

IPC分类号： C04B35/83 ,  C04B35/634 ,  C04B35/628 ,  F02K9/97

CPC分类号： C04B35/83 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/62886 ,  C04B35/62894 ,  C04B35/634 ,  C04B2235/422 ,  C04B2235/5232 ,  C04B2235/5248 ,  C04B2235/5256 ,  F02K9/97

摘要： A composite material fabrication method includes stacking a plurality of fiber layers and a first binder and curing the first binder to form a three-dimensional structure with a plurality of mesh openings, and filling the plurality of mesh openings with a plurality of fiber filaments of a fiber array and a second binder and curing the second binder. A plurality of first mesh openings of the plurality of mesh openings are connected in a first direction.

公开(公告)号：US20190210930A1

公开(公告)日：2019-07-11

申请号：US16311984

申请日：2017-06-22

申请人： Universität Bayreuth

发明人： Stefan KNOHL ,  Walter KRENKEL ,  Georg PUCHAS ,  Thomas WAMSER

IPC分类号： C04B35/80 ,  C04B35/628 ,  C04B35/626 ,  C04B35/64 ,  C04B37/00 ,  B32B18/00 ,  B32B5/02

CPC分类号： C04B35/803 ,  B32B5/022 ,  B32B18/00 ,  B32B2262/10 ,  C04B35/111 ,  C04B35/119 ,  C04B35/14 ,  C04B35/185 ,  C04B35/44 ,  C04B35/486 ,  C04B35/4885 ,  C04B35/505 ,  C04B35/52 ,  C04B35/565 ,  C04B35/6264 ,  C04B35/62852 ,  C04B35/62855 ,  C04B35/62886 ,  C04B35/632 ,  C04B35/63488 ,  C04B35/64 ,  C04B35/806 ,  C04B37/001 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3244 ,  C04B2235/522 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5236 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/602 ,  C04B2235/616 ,  C04B2235/764 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/38

摘要： A prepreg for a ceramic matrix composite, a process for the preparation of a green body with the help of the prepreg, and a process for the preparation of the ceramic matrix composite from the green body prepared according to the present invention are provided. The inventive process comprises the following steps: a) impregnating an arrangement of ceramic fibers with a slurry, which slurry comprises the following components: (i) 10 to 40 vol.-%, based on the total volume of the slurry, of ceramic particles, (ii) an alcoholic organic solvent selected from: (ii-1) 21 to 35 wt.-%, based on the total weight of the ceramic particles in the slurry, of glycerol, (ii-2) 10 to 35 wt.-%, based on the total weight of the ceramic particles in the slurry, of an oligo or polyethylene glycol with an average molecular weight of at most 800 g/mol, (ii-3) 10 to 35 wt.-%, based on the total weight of the ceramic particles in the slurry, of at least one C2-C6 alkane diol, and (ii-4) 10 to 35 wt.-%, based on the total weight of the ceramic particles in the slurry, of a mixture of two or more components, selected from a C2-C6 alkane diol, an oligo or polyethylene glycol with an average molecular weight of at most 800 g/mol, and glycerol; and (iii) water; b) reducing the water content in the slurry in the impregnated fiber arrangement to obtain a prepreg for a ceramic matrix composite; c) providing a shaped composite material from one or more prepregs obtained according to step b); d) consolidating the shaped composite material by reducing the water content and the content of alcoholic organic solvent so that a green body is obtained.

公开(公告)号：US20180273431A1

公开(公告)日：2018-09-27

申请号：US15492628

申请日：2017-04-20

申请人： Florida State University Research Foundation, Inc.

发明人： Chengying Xu

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

CPC分类号： C04B35/806 ,  C04B35/58 ,  C04B35/62844 ,  C04B35/62886 ,  C04B35/62894 ,  C04B35/64 ,  C04B2235/3873 ,  C04B2235/483 ,  C04B2235/5248 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5268 ,  C04B2235/5288 ,  C04B2235/616 ,  C04B2235/77 ,  C04B2235/96 ,  H05K9/009

摘要： Provided herein are methods of making composite materials. The methods may include infiltrating a carbon nanoscale fiber network with a ceramic precursor, curing the ceramic precursor, and/or pyrolyzing the ceramic precursor. The infiltrating, curing, and pyrolyzing steps may be repeated one or more times. Composite materials also are provided that include a ceramic material and carbon nanoscale fibers.