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公开(公告)号：US20240199498A1
公开(公告)日：2024-06-20
申请号：US18084932
申请日：2022-12-20
发明人： Brendan Lenz , Evan B. Callaway
CPC分类号： C04B35/62868 , C04B35/80 , C04B41/0072 , C04B41/4584 , C04B41/4869 , C04B41/5059 , C04B2235/3826 , C04B2235/386 , C04B2235/614 , C04B2235/616
摘要： A method of forming a ceramic matrix composite (CMC) comprises applying a boron nitride (BN) aerogel to a fibrous material to form a pretreated fibrous material, depositing, using chemical vapor infiltration (CVI), a BN interface coating (IFC) on the pretreated fibrous material, and depositing a matrix on the BN IFC and the pretreated fibrous material.
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公开(公告)号：US11919819B2
公开(公告)日：2024-03-05
申请号：US17861417
申请日：2022-07-11
发明人： Nitin Garg , Olivier H. Sudre , Cristal Chan , John H. Shaw , Ben Callaway
IPC分类号： C04B35/111 , C04B24/12 , C04B35/628 , C04B35/80 , C04B41/00 , F02C7/00
CPC分类号： C04B35/80 , C04B35/62868 , C04B35/62873 , C04B35/62894 , C04B35/62897 , F02C7/00 , C04B2235/3826 , C04B2235/5244 , F05D2220/32 , F05D2240/35 , F05D2300/6033
摘要： A ceramic matrix composite includes a ceramic matrix, fibers embedded in the ceramic matrix, and an interfacial coating system on each of the fibers. The interfacial coating system includes alternating layers of boron nitride layers of individual thicknesses of about 50 nanometers to 200 nanometers and carbon layers of individual thicknesses of less than 5 nanometers.
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公开(公告)号：US20240043345A1
公开(公告)日：2024-02-08
申请号：US17882171
申请日：2022-08-05
IPC分类号： C04B35/80 , C04B35/628 , C04B41/52 , C04B41/89
CPC分类号： C04B35/80 , C04B35/62894 , C04B35/62868 , C04B35/62863 , C04B35/62873 , C04B35/62897 , C04B35/62884 , C04B41/52 , C04B41/89 , C04B2235/3826 , C04B2235/5256 , C04B2235/614
摘要： A coated fiber structure for use in a ceramic matrix composite comprises a fiber and an interface coating arrangement applied to and circumscribing the fiber. The interface coating arrangement comprises a first boron nitride layer, a silicon carbide layer extending coaxially with and in direct contact with the first boron nitride layer, and a second boron nitride layer on a side of the silicon carbide layer opposite the first boron nitride layer. The thickness of the silicon carbide layer ranges from 100 nm to 500 nm, and an RMS roughness of the silicon carbide layer is less than 20 nm.
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公开(公告)号：US11866373B2
公开(公告)日：2024-01-09
申请号：US18042963
申请日：2021-08-25
发明人： Arnaud Delehouze , Eric Bouillon , Amine El Mansouri , Nathalie Dominique Bertrand , Alain Jean-Michel Guette
IPC分类号： C04B35/573 , C04B35/628 , C04B35/657 , C04B35/80 , C23C16/04 , C23C16/26 , C23C16/34
CPC分类号： C04B35/62884 , C04B35/62868 , C04B35/62871 , C04B35/62873 , C04B35/62878 , C04B35/62897 , C04B35/657 , C04B35/80 , C23C16/045 , C23C16/26 , C23C16/342 , C23C16/345 , C04B2235/428 , C04B2235/526 , C04B2235/5248 , C04B2235/5252 , C04B2235/5264 , C04B2235/616
摘要： A method for coating fibers, includes desizing sized short fibers having an average length less than or equal to 5 mm, the short fibers being made of ceramic material or carbon, sieving the desized short fibers in order to separate them from any agglomerates of sized short fibers still present, introducing the desized and sieved short fibers into a reactor, and coating the short fibers in the reactor by chemical vapor deposition in a fluidized bed.
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公开(公告)号：US20230219858A1
公开(公告)日：2023-07-13
申请号：US18117825
申请日：2023-03-06
IPC分类号： C04B35/80 , H01L21/02 , C04B35/628 , C23C16/455 , C23C16/04 , C04B35/565 , C04B35/515 , C01B32/956
CPC分类号： C04B35/80 , H01L21/02529 , C04B35/62868 , C23C16/45544 , C23C16/045 , C04B35/565 , C04B35/515 , C01B32/956 , C04B2235/614
摘要： A method for fabricating a component according to an example of the present disclosure includes the steps of depositing a stoichiometric precursor layer onto a preform, and densifying the preform by depositing a matrix material onto the stoichiometric precursor layer. An alternate method and a component are also disclosed.
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公开(公告)号：US10047015B2
公开(公告)日：2018-08-14
申请号：US14372085
申请日：2013-01-18
IPC分类号： C04B35/76 , C04B35/628 , C04B35/565 , C04B35/80 , C01B32/956 , D01F9/08
CPC分类号： C04B35/76 , C01B32/956 , C04B35/565 , C04B35/62865 , C04B35/62868 , C04B35/62873 , C04B35/806 , C04B2235/3409 , C04B2235/5244 , C04B2235/5264 , C04B2235/616 , D01F9/08 , D10B2101/16 , Y10T428/249964
摘要： A method and apparatus for forming a plurality of fibers from (e.g., CVD) precursors, including a reactor adapted to grow a plurality of individual fibers; and a plurality of independently controllable lasers, each laser of the plurality of lasers growing a respective fiber. A high performance fiber (HPF) structure, including a plurality of fibers arranged in the structure; a matrix disposed between the fibers; wherein a multilayer coating is provided along the surfaces of at least some of the fibers with an inner layer region having a sheet-like strength; and an outer layer region, having a particle-like strength, such that any cracks propagating toward the outer layer from the matrix propagate along the outer layer and back into the matrix, thereby preventing the cracks from approaching the fibers. A method of forming an interphase in a ceramic matrix composite material having a plurality of SiC fibers, which maximizes toughness by minimizing fiber to fiber bridging, including arranging a plurality of SiC fibers into a preform; selectively removing (e.g., etching) silicon out of the surface of the fibers resulting in a porous carbon layer on the fibers; and replacing the porous carbon layer with an interphase layer (e.g., Boron Nitride), which coats the fibers to thereby minimize fiber to fiber bridging in the preform.
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公开(公告)号：US20180207837A1
公开(公告)日：2018-07-26
申请号：US15411012
申请日：2017-01-20
CPC分类号： B29C70/36 , B32B18/00 , C04B35/117 , C04B35/14 , C04B35/563 , C04B35/565 , C04B35/62863 , C04B35/62868 , C04B35/62871 , C04B35/62873 , C04B35/62897 , C04B35/638 , C04B35/803 , C04B35/806 , C04B2235/5224 , C04B2235/5228 , C04B2235/5232 , C04B2235/524 , C04B2235/5244 , C04B2235/5248 , C04B2235/5252 , C04B2235/5436 , C04B2237/341 , C04B2237/343 , C04B2237/36 , C04B2237/365 , C04B2237/38
摘要： Methods for preparing ceramic products using liquid infusion technology and products formed from the same are provided. The methods and products include the incorporation of a particulate material and binder between ceramic fibers such that the fibers may be properly spaced during formation of the ceramic product. Ceramic matrix composite products can thereby be provided using near net shaping methods.
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公开(公告)号：US10005696B2
公开(公告)日：2018-06-26
申请号：US15022572
申请日：2014-08-25
发明人： Wayde R. Schmidt
IPC分类号： C04B35/80 , C04B35/628 , C23C16/34 , D06M11/58 , D06M11/80 , C04B41/87 , C04B41/00 , C04B41/50 , F01D5/28 , C04B35/565 , C04B35/584 , D06M101/40
CPC分类号： C04B35/62868 , C04B35/565 , C04B35/584 , C04B35/62865 , C04B35/62884 , C04B35/80 , C04B35/806 , C04B41/009 , C04B41/5063 , C04B41/5064 , C04B41/87 , C04B2235/524 , C04B2235/5244 , C04B2235/5248 , C23C16/34 , D06M11/58 , D06M11/80 , D06M2101/40 , F01D5/288 , F05D2300/222 , F05D2300/2281 , F05D2300/2282
摘要： An article includes a substrate and a coating on the substrate. The coating includes a compound of aluminum, boron and nitrogen in a continuous chemically bonded network having Al—N bonds and B—N bonds. Also disclosed is an article wherein the substrate is a plurality of fibers and the coating is a conformed coating of a compound of aluminum, boron and nitrogen having Al—N bonds and B—N bonds. The fibers are disposed in a matrix. Also disclosed is a method of protecting an article from environmental conditions. The method includes protecting a substrate that is susceptible to environmental chemical degradation using a coating that includes a compound of aluminum, boron and nitrogen having Al—N bonds and B—N bonds.
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公开(公告)号：US09963396B2
公开(公告)日：2018-05-08
申请号：US15591777
申请日：2017-05-10
发明人： Andrew J. Lazur
IPC分类号： C04B35/52 , C04B35/80 , C04B35/565 , C04B35/628 , C09D1/00 , C09D5/00 , C23C16/32 , C23C16/34
CPC分类号： C04B41/85 , C04B35/52 , C04B35/563 , C04B35/565 , C04B35/573 , C04B35/6286 , C04B35/62863 , C04B35/62868 , C04B35/62871 , C04B35/62884 , C04B35/62894 , C04B35/62897 , C04B35/806 , C04B41/88 , C04B2235/3224 , C04B2235/3225 , C04B2235/428 , C04B2235/5244 , C04B2235/5248 , C04B2235/6025 , C04B2235/614 , C04B2235/616 , C09D1/00 , C09D5/00 , C23C16/325 , C23C16/342
摘要： A fiber having an environmental barrier coating is provided that includes, in one illustrative form, a Hi Nicalon preform assembled in a tooling for chemical vapor infiltration and cleaned to remove sizing char from fibers of the Hi Nicalon preform; a ytterbium doped silicon carbide coat located over the Hi Nicalon preform; a boron nitride interface coat applied over the ytterbium doped silicon carbide coat; and a silicon carbide coat applied over the boron nitride interface coat.
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公开(公告)号：US20180037512A1
公开(公告)日：2018-02-08
申请号：US15227354
申请日：2016-08-03
发明人： Theodore Robert Grossman , Roger Antonio Aparicio , Martin Peter Gill , Steven Robert Hayashi , Andrew William Miller
IPC分类号： C04B35/80 , C04B35/657 , B65H49/34 , C04B35/628 , B05D3/00 , D06M13/53
CPC分类号： C04B35/806 , B65H49/34 , C04B35/573 , C04B35/62857 , C04B35/6286 , C04B35/62865 , C04B35/62868 , C04B35/62873 , C04B35/62876 , C04B35/62894 , C04B35/62897 , C04B2235/3826 , C04B2235/422 , C04B2235/424 , C04B2235/425 , C04B2235/428 , C04B2235/5244 , C04B2235/5248 , C04B2235/5292 , C04B2235/616 , C23C2/00 , C23C28/04 , C23C28/048 , D06M13/53
摘要： Methods for coating a fiber are provided. The method can include unwinding a silicon carbide-containing fibrous material from a bobbin rotatably mounted around an axle and forming a boron nitride coating onto the silicon carbide-containing fibrous material. The bobbin is moved along the axial direction such that the silicon carbide-containing fibrous material defines an unwind angle with the axial direction, with the unwind angle being maintained between about 80° to about 100°.
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