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公开(公告)号：US20210253434A1
公开(公告)日：2021-08-19
申请号：US17087092
申请日：2020-11-02
IPC分类号： C01B32/956 , C04B35/565 , C04B35/628 , D01F9/08 , C04B35/515 , C04B35/76
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：US20170331022A1
公开(公告)日：2017-11-16
申请号：US15592726
申请日：2017-05-11
IPC分类号： H01L35/04 , H01L35/34 , H01L41/29 , H01L41/047 , H01L35/28
CPC分类号： H01L35/04 , H01L35/28 , H01L35/34 , H01L41/047 , H01L41/082 , H01L41/29
摘要： A method is provided for making a multilayer functional fiber, where the method includes: providing a scaffold fiber; disposing a first electrode layer enclosing the scaffold fiber; disposing a functional layer enclosing the first electrode layer, the functional layer having a functional characteristic varying as a function of longitudinal position along the functional layer; disposing a second electrode layer enclosing the functional layer; and disposing a cladding layer enclosing the second electrode layer. In another aspect, a multilayer functional fiber is provided produced by, for instance, the above-noted method.
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公开(公告)号：US20210230743A1
公开(公告)日：2021-07-29
申请号：US17156746
申请日：2021-01-25
发明人： Shay L. HARRISON , John L. SCHNEITER , Joseph PEGNA , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS , Erik G. VAALER
IPC分类号： C23C16/32 , C23C16/48 , C23C16/56 , C01B32/963 , C04B35/565 , C04B35/626 , G21C3/26
摘要： A method of forming a high purity granular material, such as silicon carbide powder. Precursors are added to a reactor; at least part of a fiber is formed in the reactor from the precursors using chemical deposition interacting with said precursors; and the granular material is then formed from the fiber. In one aspect, the chemical deposition may include laser induced chemical vapor deposition. The granular material may be formed by grinding or milling the fiber into the granular material, e.g., ball milling the fiber. In one example, silicon carbide powder having greater than 90% beta crystalline phase purity and less than 0.25% oxygen contamination can be obtained.
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4.发明申请公开(公告)号：US20210087726A1
公开(公告)日：2021-03-25
申请号：US16938072
申请日：2020-07-24
IPC分类号： D04H1/74 , D04H1/4234 , D04H1/4374 , D04H1/4382
摘要： A non-woven fabric is provided which includes a three-dimensional array of fibers. The three-dimensional array of fibers includes an array of standing fibers extending perpendicular to a plane of the non-woven fabric and attached to a base substrate, where the base substrate is one or more of an expendable film substrate, a metal base substrate, or a mandrel substrate. Further, the three-dimensional array of fibers includes multiple layers of non-woven parallel fibers running parallel to the plane of the non-woven fiber in between the array of standing fibers in a defined pattern of fiber layer orientations. In implementation, the array of standing fibers are grown to extend from the base substrate using laser-assisted chemical vapor deposition (LCVD).
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公开(公告)号：US20170369998A1
公开(公告)日：2017-12-28
申请号：US15631243
申请日：2017-06-23
发明人： Joseph PEGNA , Erik G. VAALER , John L. SCHNEITER , Shay L. HARRISON , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS
CPC分类号： C23C16/483 , B29C70/10 , B32B5/04 , B32B5/14 , B82Y30/00 , B82Y40/00 , C23C16/047 , C23C16/56
摘要： Methods are provided for making a nanofiber-coated fiber. The method(s) include: providing a base fiber; depositing a nanofreckle on the base fiber; and growing a nanofiber at the nanofreckle. In another aspect, nanofiber-coated fibers are provided, produced by the above-noted methods making a nanofiber-coated fiber.
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公开(公告)号：US20170326838A1
公开(公告)日：2017-11-16
申请号：US15592408
申请日：2017-05-11
CPC分类号： B32B7/12 , B32B5/02 , B32B27/12 , B32B37/12 , B32B2250/02 , B32B2262/103 , B32B2262/106 , B32B2307/748 , B32B2405/00 , C23C16/483
摘要： In one aspect, a fiber delivery assembly is provided including a backing tape and a single-filament fiber coupled to the backing tape. In another aspect, a method of making a fiber delivery assembly is provided, which includes: providing a backing tape; providing a single-filament fiber; and coupling the single-filament fiber to the backing tape.
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7.发明公开公开(公告)号：US20240301601A1
公开(公告)日：2024-09-12
申请号：US18652980
申请日：2024-05-02
IPC分类号： D04H1/74 , D04H1/4234 , D04H1/4374 , D04H1/4382
CPC分类号： D04H1/74 , D04H1/4234 , D04H1/4374 , D04H1/43835 , D10B2403/033
摘要： A non-woven fabric is provided which includes a three-dimensional array of fibers. The three-dimensional array of fibers includes an array of standing fibers extending perpendicular to a plane of the non-woven fabric and attached to a base substrate, where the base substrate is one or more of an expendable film substrate, a metal base substrate, or a mandrel substrate. Further, the three-dimensional array of fibers includes multiple layers of non-woven parallel fibers running parallel to the plane of the non-woven fiber in between the array of standing fibers in a defined pattern of fiber layer orientations. In implementation, the array of standing fibers are grown to extend from the base substrate using laser-assisted chemical vapor deposition (LCVD).
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公开(公告)号：US20180370860A1
公开(公告)日：2018-12-27
申请号：US16019839
申请日：2018-06-27
发明人： Joseph PEGNA , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS , John L. SCHNEITER , Shay L. HARRISON , Erik G. VAALER
IPC分类号： C04B35/76 , H01L35/04 , H01L41/047 , C04B35/565 , H01L35/28 , C23C16/48 , C04B35/80 , C04B35/83 , H01L35/34
摘要： A method is provided for growing a fiber structure, where the method includes: obtaining a substrate, growing an array of pedestal fibers on the substrate, growing fibers on the pedestal fibers, and depositing a coating surrounding each of the fibers. In another aspect, a method of fabricating a fiber structure includes obtaining a substrate and growing a plurality of fibers on the substrate according to 1½D printing. In another aspect, a multilayer functional fiber is provided produced by, for instance, the above-noted methods.
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公开(公告)号：US20180087214A1
公开(公告)日：2018-03-29
申请号：US15718206
申请日：2017-09-28
发明人： Shay L. HARRISON , Marvin KESHNER , Joseph PEGNA , Erik G. VAALER , John L. SCHNEITER , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS
CPC分类号： D06M11/36 , C04B35/62847 , C04B35/62889 , C04B2235/3205 , C04B2235/665 , C04B2235/767 , C23C16/40 , C23C16/46 , C23C16/483
摘要： A refractory oxide coated fiber is provided including a primary fiber material and a refractory oxide coating over the primary fiber material. Further, a method of making a refractory oxide coated fiber is provided, which includes: providing a first precursor-laden environment, the first precursor-laden environment including a primary precursor; promoting fiber growth within the first precursor-laden environment using laser heating; and providing a second precursor-laden environment to promote coating of the fiber, the second precursor-laden environment comprising a refractory oxide precursor, and the coating producing a refractory oxide coating over the fiber with a hexagonal microstructure.
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公开(公告)号：US20220411921A1
公开(公告)日：2022-12-29
申请号：US17661059
申请日：2022-04-28
发明人： Joseph PEGNA , Kirk L. WILLIAMS , Shay L. HARRISON
摘要： Methods of forming a ceramic matrix, as well as fiber preforms and methods of forming fiber preforms to facilitate formation of a ceramic matrix are provided. The method includes obtaining a fiber preform to facilitate forming the ceramic matrix. The fiber preform includes a fiber layer with a plurality of fibers and a heating element embedded within the fiber preform. The method also includes heating the fiber preform via the heating element embedded within the fiber preform, and depositing matrix material into the fiber preform by embedded wire chemical vapor deposition (EWCVD) of the matrix material during the heating of the fiber preform by the heating element. The chemical vapor deposition of the matrix material within the fiber preform facilitates formation of the ceramic matrix.
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