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：US20190161413A1

公开(公告)日：2019-05-30

申请号：US15823016

申请日：2017-11-27

申请人： United Technologies Corporation

发明人： R. Wesley Jackson ,  Kathryn S. Read ,  Jeremy R. Hart ,  Andrew J. Lazur

IPC分类号： C04B35/589 ,  C04B35/634 ,  C04B35/80

CPC分类号： C04B35/589 ,  C04B35/6264 ,  C04B35/62884 ,  C04B35/63416 ,  C04B35/806 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3873 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5296 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/77

摘要： A method of producing an enhanced ceramic matrix composite includes applying a tackifier compound to a fiber preform. The tackifier compound includes inorganic filler particles. The method further includes modifying the tackifier compound such that the inorganic filler particles remain interspersed throughout the fiber preform, and occupy pores of fiber preform.

公开(公告)号：US20180363132A1

公开(公告)日：2018-12-20

申请号：US16003615

申请日：2018-06-08

申请人： Rolls-Royce High Temperature Composites Inc.

发明人： Richard W. Kidd ,  Robert Shinavski

IPC分类号： C23C16/34 ,  C23C16/30 ,  D06M11/58 ,  D06M11/80 ,  F01D25/00

CPC分类号： C23C16/342 ,  C04B35/565 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B2235/3826 ,  C04B2235/46 ,  C04B2235/465 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/616 ,  C23C16/308 ,  D06M11/58 ,  D06M11/80 ,  D06M2101/16 ,  F01D25/005 ,  F05D2300/6033

摘要： A method of forming a moisture-tolerant coating on a silicon carbide fiber includes exposing a silicon carbide fiber to a gaseous N precursor comprising nitrogen at an elevated temperature, thereby introducing nitrogen into a surface region of the silicon carbide fiber, and exposing the silicon carbide fiber to a gaseous B precursor comprising boron at an elevated temperature, thereby introducing boron into the surface region of the silicon carbide fiber. Silicon-doped boron nitride is formed at the surface region of the silicon carbide fiber without exposing the silicon carbide fiber to a gaseous Si precursor comprising Si. Thus, a moisture-tolerant coating comprising the silicon-doped boron nitride is grown in-situ on the silicon carbide fiber.

公开(公告)号：US20180230062A1

公开(公告)日：2018-08-16

申请号：US15430777

申请日：2017-02-13

申请人： General Electric Company

发明人： Theodore Robert Grossman ,  James Scott Vartuli ,  Steven Robert Hayashi

IPC分类号： C04B35/80 ,  C04B41/45 ,  C04B41/50

CPC分类号： C04B35/80 ,  C04B35/565 ,  C04B35/571 ,  C04B35/573 ,  C04B35/62847 ,  C04B35/62849 ,  C04B35/62852 ,  C04B35/62855 ,  C04B35/62857 ,  C04B35/6286 ,  C04B35/62863 ,  C04B35/62865 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62873 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/806 ,  C04B41/4535 ,  C04B41/4568 ,  C04B41/5064 ,  C04B41/5096 ,  C04B2235/3826 ,  C04B2235/424 ,  C04B2235/428 ,  C04B2235/5244

摘要： Systems and methods for forming ceramic matrix composite (CMC) components are provided. The CMC component includes a reinforcement material having a plurality of filaments that are at least partially electrically conductive. The plurality of filaments are charged by a charging element with an electric charge of the same sign such that adjacent filaments are in an expanded spatial relationship relative to one another while being coated. While in the expanded spatial relationship, the filaments can also be pulled through a matrix slurry.

公开(公告)号：US10020078B2

公开(公告)日：2018-07-10

申请号：US14250270

申请日：2014-04-10

申请人： AREVA Inc.

发明人： Mihai G. M. Pop

IPC分类号： G21C3/30 ,  G21C3/07 ,  B32B18/00

CPC分类号： G21C3/07 ,  B32B18/00 ,  C04B2235/5244 ,  C04B2237/365 ,  C04B2237/38 ,  Y02E30/40

摘要： A fuel rod for a nuclear fission reactor is disclosed and claimed. The fuel rod includes an elongate hollow cladding configured to retain a nuclear fuel therein. The cladding includes an elongate hollow tube. Fiber layers are positioned around the outside surface of the tube or within the tube forming an integral part thereof. Both the tube and the fibers are formed of a ceramic material. A fuel assembly including a plurality of such fuel rods is also disclosed and claimed.

公开(公告)号：US09981880B2

公开(公告)日：2018-05-29

申请号：US14876270

申请日：2015-10-06

申请人： Rolls-Royce Corporation

发明人： Adam L. Chamberlain ,  Andrew J. Lazur ,  Kang N. Lee

IPC分类号： C23C16/30 ,  C04B35/628

CPC分类号： C04B35/62847 ,  C04B35/62849 ,  C04B35/62852 ,  C04B35/62863 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/62894 ,  C04B2235/522 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5248

摘要： A method of making a fiber tow coating is provided. The method includes providing a fiber tow selected from the group consisting of carbon and silicon; and applying an oxide-based fiber interface coating onto the fiber tow using directed vapor deposition or other like deposition method.

公开(公告)号：US09951630B2

公开(公告)日：2018-04-24

申请号：US14407288

申请日：2013-06-12

申请人： Directed Vapor Technologies International, Inc.

发明人： Derek Hass

IPC分类号： F01D5/28 ,  C23C14/08 ,  C23C14/10 ,  F01D25/00 ,  C04B35/571 ,  C04B35/80 ,  C04B41/89 ,  C04B41/00 ,  C04B41/52 ,  C23C14/22 ,  C23C14/30

CPC分类号： F01D5/288 ,  C04B35/571 ,  C04B35/806 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C04B2235/5244 ,  C04B2235/614 ,  C04B2235/616 ,  C23C14/08 ,  C23C14/083 ,  C23C14/10 ,  C23C14/228 ,  C23C14/30 ,  F01D5/284 ,  F01D25/005 ,  F05D2300/6033 ,  C04B35/565 ,  C04B41/4529 ,  C04B41/5096 ,  C04B41/5059 ,  C04B41/5024 ,  C04B41/5042 ,  C04B41/5044 ,  C04B41/522

摘要： The present inventions incorporate self-healing mechanisms into current and future EBC systems. Such approaches have the potential to form environmental protection materials (i.e. thermally grown silicate compositions) in-situ to enable the ability to provide environmental protection to SiC based ceramics even in the event that cracks or voids form from within the EBC layer. In this disclosure, novel, self-healing EBC systems are disclosed along with coating synthesis techniques required to deposit the materials, microstructures and architectures. This research is anticipated to result in a thermal/environmental barrier coating system (T/EBC) that provides improved durability over current coatings. These advancements will aid the use of Si-based ceramics in a range of high temperature applications such a gas turbine engines and heat exchangers. These advances will not only benefit military engines, but also commercial and industrial engines requiring greater performance.

公开(公告)号：US09896954B2

公开(公告)日：2018-02-20

申请号：US14881864

申请日：2015-10-13

申请人： Rolls-Royce Corporation

发明人： Jeffrey A. Walston ,  Sean Landwehr

IPC分类号： B23K31/02 ,  F01D11/00 ,  B32B1/08 ,  B32B3/26 ,  B32B18/00 ,  F01D5/14 ,  F01D9/02 ,  B23K1/00 ,  F23R3/00 ,  B32B5/02 ,  B32B5/22 ,  B32B5/26 ,  B32B7/04 ,  B32B1/00 ,  B32B3/08 ,  F01D5/18 ,  F01D5/28 ,  C04B37/00 ,  B29L31/08 ,  B23K101/00

CPC分类号： F01D11/003 ,  B23K1/0018 ,  B23K2101/001 ,  B29L2031/08 ,  B32B1/00 ,  B32B1/08 ,  B32B3/08 ,  B32B3/266 ,  B32B5/02 ,  B32B5/022 ,  B32B5/024 ,  B32B5/22 ,  B32B5/26 ,  B32B7/045 ,  B32B18/00 ,  B32B2255/02 ,  B32B2255/20 ,  B32B2260/021 ,  B32B2260/04 ,  B32B2260/044 ,  B32B2262/105 ,  B32B2307/306 ,  B32B2307/308 ,  B32B2307/50 ,  B32B2307/718 ,  B32B2581/00 ,  B32B2603/00 ,  C04B37/005 ,  C04B2235/3418 ,  C04B2235/5244 ,  C04B2235/5436 ,  C04B2235/616 ,  C04B2237/083 ,  C04B2237/365 ,  C04B2237/38 ,  C04B2237/592 ,  C04B2237/597 ,  C04B2237/60 ,  C04B2237/61 ,  C04B2237/62 ,  C04B2237/84 ,  F01D5/147 ,  F01D5/18 ,  F01D5/186 ,  F01D5/189 ,  F01D5/282 ,  F01D5/284 ,  F01D9/02 ,  F01D9/065 ,  F05D2240/127 ,  F05D2260/201 ,  F05D2260/2212 ,  F05D2300/6033 ,  F23R3/002 ,  F23R3/007 ,  F23R2900/00018 ,  F23R2900/03041 ,  F23R2900/03044

摘要： A dual-walled ceramic matrix composite (CMC) component comprises: a CMC core having a hollow shape enclosing at least one interior channel; and a CMC outer layer overlying and spaced apart from the CMC core by a ceramic slurry-cast architecture positioned therebetween. Each of the CMC core and the CMC outer layer comprises ceramic fibers in a ceramic matrix. The CMC core further includes a plurality of through-thickness inner cooling holes in fluid communication with the at least one interior channel. The ceramic slurry-cast architecture defines a cooling fluid path over an outer surface of the CMC core that connects the interior channel(s) to an external environment of the dual-walled CMC component. The CMC outer layer may also include a plurality of through-thickness outer cooling holes in fluid communication with the cooling fluid path, thereby extending the cooling fluid path through the CMC outer layer.

公开(公告)号：US20170373612A1

公开(公告)日：2017-12-28

申请号：US15189026

申请日：2016-06-22

申请人： General Electric Company

发明人： Aaron Todd Sellinger ,  Nicholas Joseph Kray

IPC分类号： H02N2/18 ,  G01L1/16 ,  G01K7/02 ,  H01L35/32 ,  F04D29/38

CPC分类号： H02N2/186 ,  C04B35/117 ,  C04B35/52 ,  C04B35/565 ,  C04B35/80 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5244 ,  F01D5/10 ,  F01D5/16 ,  F01D5/26 ,  F01D5/282 ,  F01D15/10 ,  F01D25/005 ,  F01D25/04 ,  F01D25/06 ,  F03G7/08 ,  F04D29/388 ,  F05D2260/407 ,  F05D2300/6033 ,  G01K7/02 ,  G01L1/16 ,  H01L35/32 ,  H01L41/113 ,  H02N2/181 ,  Y02T50/672 ,  Y02T50/673

摘要： The present disclosure is directed to an engine component for a gas turbine engine, the engine component including a substrate that includes a composite fiber and defines a surface. An energy harvesting fiber is positioned within the substrate.

公开(公告)号：US20170369382A1

公开(公告)日：2017-12-28

申请号：US15538982

申请日：2015-12-18

申请人： SAFRAN AIRCRAFT ENGINES ,  SAFRAN

发明人： Catherine BILLOTTE CABRE ,  Nicolas DROZ ,  Ludovic LIAIS ,  Michael PODGORSKI ,  Edu RUIZ ,  Sylvain TURENNE

IPC分类号： C04B35/80 ,  B28B1/52 ,  B28B11/24 ,  C04B35/64 ,  B28B1/26 ,  C04B35/628 ,  B29C70/48 ,  B29K509/02 ,  B29K309/02

CPC分类号： C04B35/803 ,  B28B1/265 ,  B28B1/52 ,  B28B7/368 ,  B28B11/243 ,  B28B23/02 ,  B29C70/48 ,  B29K2309/02 ,  B29K2509/02 ,  C04B35/117 ,  C04B35/14 ,  C04B35/18 ,  C04B35/185 ,  C04B35/447 ,  C04B35/565 ,  C04B35/58071 ,  C04B35/62625 ,  C04B35/62847 ,  C04B35/62886 ,  C04B35/62892 ,  C04B35/634 ,  C04B35/64 ,  C04B35/806 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5232 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5256 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5463 ,  C04B2235/6022 ,  C04B2235/6027 ,  C04B2235/604 ,  C04B2235/616 ,  D03D25/005 ,  D10B2101/20 ,  F01D5/282 ,  F01D5/284 ,  F05D2300/601 ,  F05D2300/6033 ,  F05D2300/6034

摘要： A method of fabricating a fiber preform filled with refractory ceramic particles, includes placing a fiber texture including refractory ceramic fibers in a mold cavity; injecting a slip including a powder of refractory ceramic particles present in a liquid medium, the slip being injected into the pores of the fiber texture present in the mold cavity, injection being performed through at least a first face or a first edge of the fiber texture; and draining the liquid medium of the slip that has penetrated into the fiber texture through the porous material part, the draining being performed at least through a second face or a second edge of the fiber texture different from the first face or the first edge, the porous material part also serving to retain the refractory particle powder in the pores of the fiber texture to obtain a fiber preform filled with refractory particles.