-
1.发明授权公开(公告)号：US12006605B2
公开(公告)日：2024-06-11
申请号：US16938072
申请日：2020-07-24
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).
-
公开(公告)号：US11362256B2
公开(公告)日：2022-06-14
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： H01L35/34 , D01F9/08 , D01F8/18 , H01L35/04 , H01L35/28 , C23C16/54 , H01L41/047 , C23C16/48 , C04B35/628 , B32B19/06 , C04B35/515 , C04B35/76 , C04B35/565 , C04B35/622 , C23C16/30 , C04B35/80 , C04B35/56 , C23C16/04 , H01L41/08 , H01L41/087
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.
-
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.
-
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).
-
公开(公告)号：US10546661B2
公开(公告)日：2020-01-28
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.
-
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.
-
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.
-
公开(公告)号：US20150004393A1
公开(公告)日：2015-01-01
申请号：US14372085
申请日：2013-01-18
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.
摘要翻译： 一种从（例如CVD）前体形成多根纤维的方法和装置，包括适于生长多根单独纤维的反应器; 和多个可独立控制的激光器，所述多个激光器的每个激光器生长相应的光纤。 一种高性能纤维（HPF）结构，包括布置在结构中的多根纤维; 设置在纤维之间的矩阵; 其中沿着至少一些所述纤维的表面设置有具有片状强度的内层区域的多层涂层; 以及具有粒状强度的外层区域，使得从基体向外层传播的任何裂纹沿外层传播并返回到基体中，从而防止裂纹接近纤维。 在具有多个SiC纤维的陶瓷基复合材料中形成界面的方法，其通过使纤维与纤维桥接最小化而使韧性最大化，包括将多个SiC纤维布置在预成型体中; 选择性地从硅纤维表面去除（例如蚀刻）硅，导致纤维上的多孔碳层; 并用间隙层（例如，氮化硼）代替多孔碳层，其涂覆纤维，从而使纤维与预制棒中的纤维桥接最小化。
-
公开(公告)号：US11761085B2
公开(公告)日：2023-09-19
申请号：US17408922
申请日：2021-08-23
CPC分类号： C23C16/483 , B32B5/02 , B32B27/18 , C23C16/325 , B32B2264/107 , B32B2405/00
摘要： A composite tape and method of fabrication are provided which includes multiple layers and a laser-driven chemical vapor deposition (LCVD)-formed additive material in at least one layer of the multiple layers to enhance one or more properties of the composite tape. The LCVD-formed additive material is a single crystalline material and can include LCVD-formed granular material and/or LCVD-formed fiber material in the same or different layers of the composite tape to enhance, for instance, fracture strength and/or wear resistance of the composite tape.
-
公开(公告)号：US20220404212A1
公开(公告)日：2022-12-22
申请号：US17658665
申请日：2022-04-11
发明人： Joseph PEGNA , Thomas Philip BUDKA
摘要： Methods of fabricating fiber structures with embedded sensors are provided. The method includes obtaining a scaffold fiber and forming, by 1½-D printing using laser induced chemical vapor deposition, circuitry on the scaffold fiber to provide a fiber structure with embedded sensor. The forming includes printing a solid state oscillator about the scaffold fiber, and printing a sensing device about the scaffold fiber electrically coupled to the solid state oscillator to effect, at least in part, oscillations of the solid state oscillator. The forming further includes printing an antenna about the scaffold fiber electrically connected to the solid state oscillator to facilitate in operation wireless transmitting of a signal from the fiber structure with embedded sensor.
-
-
-
-
-
-
-
-
-
搜索结果
35 条记录 (耗时 0.024 秒)
