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Kenneth Ross Atkinson

Bio: Kenneth Ross Atkinson is an academic researcher from University of Texas System. The author has contributed to research in topics: Ribbon & Carbon nanotube. The author has an hindex of 4, co-authored 8 publications receiving 699 citations.
Topics: Ribbon, Carbon nanotube, Nanofiber, Nanotube

Papers
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PatentDOI
07 Jul 2016
TL;DR: In this article, the authors describe the properties and properties of carbon nanotube yarns, ribbons, and sheets, including extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with other fibers with similar toughness, retention of strength even when heated in air at 450°C for one hour, and very high radiation and UV resistance, even when irradiated in air.
Abstract: The present invention is directed to nanofiber yarns, ribbons, and sheets; to methods of making said yarns, ribbons, and sheets; and to applications of said yarns, ribbons, and sheets. In some embodiments, the nanotube yarns, ribbons, and sheets comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450°C for one hour, and very high radiation and UV resistance, even when irradiated in air. Furthermore these nanotube yarns can be spun as one micron diameter yarns and plied at will to make two-fold, four-fold, and higher fold yarns. Additional embodiments provide for the spinning of nanofiber sheets having arbitrarily large widths. In still additional embodiments, the present invention is directed to applications and devices that utilize and/or comprise the nanofiber yarns, ribbons, and sheets of the present invention.

661 citations

Patent
09 Nov 2005
TL;DR: In this paper, a method of making carbon nanotube yarns was proposed, which is directed to methods of making nanofiber yarns in some embodiments, the nanotubes comprised carbon nanogas, and the yarns of the present invention provided unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure, very high resistance to creep, retention of strength even when heated in air at 450°C.
Abstract: The present invention is directed to methods of making nanofiber yarns. In some embodiments, the nanotube yarns comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air.

12 citations

Patent
23 Dec 2014
TL;DR: In this paper, the authors describe the properties and properties of carbon nanotube yarns, ribbons, and sheets, including extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with other fibers with similar toughness, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air.
Abstract: The present invention is directed to nanofiber yarns, ribbons, and sheets; to methods of making said yarns, ribbons, and sheets; and to applications of said yarns, ribbons, and sheets. In some embodiments, the nanotube yarns, ribbons, and sheets comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air. Furthermore these nanotube yarns can be spun as one micron diameter yarns and plied at will to make two-fold, four-fold, and higher fold yarns. Additional embodiments provide for the spinning of nanofiber sheets having arbitrarily large widths. In still additional embodiments, the present invention is directed to applications and devices that utilize and/or comprise the nanofiber yarns, ribbons, and sheets of the present invention.

11 citations

Patent
25 Nov 2015
TL;DR: In this paper, a primary assembly is performed by arranging carbon nanotube nanofibers in aligned arrays, with the arrays having a degree of inter-fiber connectivity.
Abstract: Fabricating a nanofiber ribbon or sheet with a process that includes providing a primary assembly by arranging carbon nanotube nanofibers in aligned arrays, the arrays having a degree of inter-fiber connectivity, drawing the carbon nanotube nanofibers from the primary assembly into a sheet or ribbon, and depositing the sheet or ribbon on a substrate.

9 citations

Patent
22 Jun 2016
TL;DR: A yarn with a helix angle measured relative to the alignment axis of from 5° to 30° is a yarn with tensile strength of at least 280 MPa as discussed by the authors.
Abstract: A nanofiber yarn that includes a plurality of nanofibers twisted into a yarn along an alignment axis The nanofibers of the plurality of nanofibers have a ratio of nanofiber length to nanofiber circumference of at least 50 The yarn has a helix angle measured relative to the alignment axis of from 5° to 30° The yarn has tensile strength of at least 280 MPa A nanofiber fabric that includes a first sheet of multiwalled nanotubes and a second sheet of multiwalled nanotubes on the first sheet of multiwalled nanotubes The multiwalled nanotubes of the first sheet are aligned in a first direction The multiwalled nanotubes of the second sheet are aligned in the first direction The first sheet and the second sheet are aligned so that the multiwalled nanotubes of the first sheet and the second sheet are both aligned in the first direction

4 citations


Cited by
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Patent
Zoran Radivojevic1, Paul Beecher1, Chris Bower1, Piers Andrew1, Darryl Cotton1, Samiul Haque1 
16 Aug 2012
TL;DR: In this paper, an apparatus including a plurality of adjacent repeated base units, each base unit formed from an active electrode of first, second, third and third touch sensor arrays, each including an active electrodes connected to a respective common terminal of the touch sensor array, where a swipe touch gesture applied to two or more adjacent active electrodes of the apparatus generates signalling at the respective common terminals of the corresponding touch sensors.
Abstract: An apparatus including a plurality of adjacent repeated base units, each base unit formed from an active electrode of first, second and third touch sensor arrays, the first, second and third touch sensor arrays each including a plurality of active electrodes connected to a respective common terminal of the touch sensor array, wherein each base unit includes an active electrode of the second touch sensor array interlaced between an active electrode of the first touch sensor array and an active electrode of the third touch sensor array such that a swipe touch gesture applied to two or more adjacent active electrodes of the apparatus generates signalling at the respective common terminals of the corresponding touch sensor arrays which allows the direction of the swipe touch gesture to be determined.

383 citations

Patent
08 Jun 2012
TL;DR: In this paper, skin-mounted biomedical devices and methods of making and using biomedical devices for sensing and actuation applications are described. But they do not specify any specific applications of these devices.
Abstract: Provided herein are skin-mounted biomedical devices and methods of making and using biomedical devices for sensing and actuation applications. For example, flexible and/or stretchable biomedical devices are provided, including electronic devices useful for establishing conformal contact with the skin of a subject. Devices disclosed herein can comprise a plurality of sensing and/or actuating devices provided as part of a skin-mounted flexible or stretchable electronic circuit.

243 citations

Patent
29 Sep 2008
TL;DR: In this article, an exemplary touch panel consisting of a substrate, transparent conductive layers, a capacitive sensing circuit, and conductive wires is presented, and a display device using the touch panel is also provided.
Abstract: An exemplary touch panel includes a substrate, transparent conductive layers, a capacitive sensing circuit, and conductive wires. The transparent conductive layers are disposed on a surface of the substrate and spaced apart from each other. Each transparent conductive layer includes a carbon nanotube layer. The carbon nanotube layer includes carbon nanotubes. The conductive wires respectively electrically connect the transparent conductive layers to the capacitive sensing circuit. A display device using the touch panel is also provided.

239 citations

PatentDOI
TL;DR: In this paper, a flexible all-solid state supercapacitor is provided that includes a first electrode and a second electrode, where the flexible nanofiber web connects the first electrode to the second electrode.
Abstract: A flexible all-solid state supercapacitor is provided that includes a first electrode and a second electrode, and a flexible nanofiber web, where the flexible nanofiber web connects the first electrode to the second electrode, where the flexible nanofiber web includes a plurality of flexible nanofibers, where the flexible nanofiber includes a hierarchal structure of macropores, mesopores and micropores through a cross section of the flexible nanofiber, where the mesopores and the micropores form a graded pore structure, where the macropores are periodically distributed along the flexible nanaofiber and within the graded pore structure.

235 citations

Journal ArticleDOI
01 Dec 2007-Carbon
TL;DR: In this paper, laser flash and self-heating 3 ω techniques were employed to determine the anisotropic thermal conductivity and thermal diffusivity of a highly oriented, free-standing multiwalled carbon nanotube (MWCNT) sheet and a yarn drawn from a sidewall of the MWCNT forest grown by chemical-vapor deposition.

191 citations