公开(公告)号：US20180087214A1

公开(公告)日：2018-03-29

申请号：US15718206

申请日：2017-09-28

申请人： FREE FORM FIBERS, LLC

发明人： Shay L. HARRISON ,  Marvin KESHNER ,  Joseph PEGNA ,  Erik G. VAALER ,  John L. SCHNEITER ,  Ram K. GODUGUCHINTA ,  Kirk L. WILLIAMS

IPC分类号： D06M11/36 ,  C23C16/48 ,  C23C16/46 ,  C23C16/40

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.

公开(公告)号：US20210253434A1

公开(公告)日：2021-08-19

申请号：US17087092

申请日：2020-11-02

申请人： FREE FORM FIBERS, LLC

发明人： Joseph PEGNA ,  John L. SCHNEITER ,  Kirk L. WILLIAMS ,  Ramkiran GODUGUCHINTA

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.

公开(公告)号：US10822240B2

公开(公告)日：2020-11-03

申请号：US16101730

申请日：2018-08-13

申请人： FREE FORM FIBERS, LLC

发明人： Joseph Pegna ,  John L. Schneiter ,  Kirk L. Williams ,  Ramkiran Goduguchinta

IPC分类号： C01B32/956 ,  C04B35/565 ,  C04B35/628 ,  C04B35/80 ,  D01F9/08 ,  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.

公开(公告)号：US09938393B2

公开(公告)日：2018-04-10

申请号：US15003915

申请日：2016-01-22

申请人： FREE FORM FIBERS, LLC

发明人： John L. Schneiter ,  Joseph Pegna ,  Ramkiran Goduguchinta ,  Kirk L. Williams ,  Shay Llewellyn Harrison

IPC分类号： C23C16/00 ,  C08K3/38 ,  C04B35/80 ,  C08K3/02 ,  C08K3/14 ,  C08K3/34 ,  C04B35/622

CPC分类号： C08K3/38 ,  C04B35/62277 ,  C04B35/62281 ,  C04B35/80 ,  C04B2235/5264 ,  C04B2235/781 ,  C04B2235/787

摘要： A fully dense ceramic and/or other inorganic fiber containing elongated crystal grains in and around the fiber center and oriented along the fiber axis, with a smooth transition to more equiaxed grains towards the radial periphery of the fiber, and method for producing such.

公开(公告)号：US20170331022A1

公开(公告)日：2017-11-16

申请号：US15592726

申请日：2017-05-11

申请人： FREE FORM FIBERS, LLC

发明人： Joseph PEGNA ,  Erik G. VAALER ,  John L. SCHNEITER ,  Shay L. HARRISON

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.