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公开(公告)号：US20220144711A1
公开(公告)日：2022-05-12
申请号：US17580990
申请日：2022-01-21
发明人： Shay L. HARRISON , John L. SCHNEITER , Joseph PEGNA , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS , Erik G. VAALER
IPC分类号： C04B35/622 , G21C3/58 , C23C16/32 , C01B32/963
摘要： A method of forming a high purity ingot for wafer production, such as a silicon carbidewafer. 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 the precursors; and granular material is then formed from the fiber. The method further includes forming the ingot from the granular material. In one aspect, the chemical deposition can include laser induced chemical vapor deposition. Further, the method can include separating one or more wafers from the ingot for use in semiconductor fabrication.
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公开(公告)号：US20180087157A1
公开(公告)日：2018-03-29
申请号：US15718199
申请日：2017-09-28
发明人： Shay L. HARRISON , Joseph PEGNA , Erik G. VAALER , John L. SCHNEITER , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS
CPC分类号： C23C16/483 , C04B35/62231 , C04B35/6225 , C04B35/62272 , C04B35/62277 , C04B35/62281 , C04B35/62286 , C04B2235/3206 , C04B2235/3244 , C04B2235/3813 , C04B2235/3839 , C04B2235/3843 , C04B2235/3847 , C04B2235/3886 , C04B2235/3891 , C04B2235/665 , C04B2235/80 , C23C16/30 , C23C16/32 , C23C16/34 , C23C16/40 , C23C16/42 , C23C16/4418
摘要： Multi-composition fibers with one or more refractory additives, and methods of making the fibers, are provided. The method(s) includes providing a precursor-laden environment, and promoting fiber growth using laser heating. The precursor-laden environment includes a primary precursor material and a refractory precursor material. The multi-composition fiber may include a primary fiber material, and a refractory material substantially homogeneously intermixed with the primary fiber material.
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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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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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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：US20210222332A1
公开(公告)日：2021-07-22
申请号：US17132205
申请日：2020-12-23
发明人： Shay L. HARRISON , Joseph PEGNA , Erik G. VAALER , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS , John L. SCHNEITER
IPC分类号： D01F11/12 , D01F9/08 , C04B35/622 , D01D5/20 , C01B32/956 , D01F1/10 , C23C16/44 , C01B32/914 , C01B21/076 , C01B35/04 , C23C16/48 , H01S3/067
摘要： A multi-composition fiber is provided including a primary fiber material and an elemental additive material deposited on grain boundaries between adjacent crystalline domains of the primary fiber material. A method of making a multi-composition fiber is also provided, which includes providing a precursor laden environment, and promoting fiber growth using laser heating. The precursor laden environment includes a primary precursor material and an elemental precursor material.
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公开(公告)号：US20180148864A1
公开(公告)日：2018-05-31
申请号：US15825664
申请日：2017-11-29
发明人： Shay L. HARRISON , Joseph PEGNA , Erik G. VAALER , Ram K. GODUGUCHINTA , Kirk L. WILLIAMS , John L. SCHNEITER
IPC分类号： D01F11/12 , H01S3/067 , C01B35/04 , C01B21/076 , C23C16/48 , C01B32/914
CPC分类号： D01F11/127 , C01B21/0761 , C01B32/914 , C01B32/956 , C01B35/04 , C04B35/62272 , C04B35/62277 , C04B35/62281 , C04B35/62286 , C04B35/6229 , C04B35/62295 , C04B2235/40 , C04B2235/404 , C04B2235/5264 , C04B2235/665 , C04B2235/85 , C23C16/4418 , C23C16/483 , D01D5/20 , D01F1/10 , D01F9/08 , H01S3/06737
摘要： A multi-composition fiber is provided including a primary fiber material and an elemental additive material deposited on grain boundaries between adjacent crystalline domains of the primary fiber material. A method of making a multi-composition fiber is also provided, which includes providing a precursor laden environment, and promoting fiber growth using laser heating. The precursor laden environment includes a primary precursor material and an elemental precursor material.
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10.发明申请公开(公告)号：US20170213604A1
公开(公告)日：2017-07-27
申请号：US15320800
申请日：2015-06-23
发明人： Joseph PEGNA , Erik G. VAALER , Shay L. HARRISON , John L. SCHNEITER , Kirk L. WILLIAMS , Ram K. GODUGUCHINTA
摘要： Nuclear fuel structures and methods for fabricating are disclosed herein. The nuclear fuel structure includes a plurality of fibers arranged in the structure and a multilayer fuel region within at least one fiber of the plurality of fibers. The multilayer fuel region includes an inner layer region made of a nuclear fuel material, and an outer layer region encasing the nuclear fuel material. A plurality of discrete multilayer fuel regions may be formed over a core region along the at least one fiber, the plurality of discrete multilayer fuel regions having a respective inner layer region of nuclear fuel material and a respective outer layer region encasing the nuclear fuel material. The plurality of fibers may be wrapped around an inner rod or tube structure or inside an outer tube structure of the nuclear fuel structure, providing both structural support and the nuclear fuel material of the nuclear fuel structure.
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