Sökning: WFRF:(Alavian Ghavanini Farzan 1978) >
Direct measurement ...
Direct measurement of bending stiffness and estimation of Young's modulus of vertically aligned carbon nanofibers
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- Alavian Ghavanini, Farzan, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Microtechnology and Nanoscience, Chalmers University of Technology, 41296 Göteborg, Sweden
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- Jackman, Henrik, 1984- (författare)
- Karlstads universitet,Avdelningen för fysik och elektroteknik,Materialfysik
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- Lundgren, Per, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Microtechnology and Nanoscience, Chalmers University of Technology, 41296 Göteborg, Sweden
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- Svensson, Krister, 1969- (författare)
- Karlstads universitet,Avdelningen för fysik och elektroteknik,Materialfysik
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- Enoksson, Peter, 1957 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Microtechnology and Nanoscience, Chalmers University of Technology, 41296 Göteborg, Sweden
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(creator_code:org_t)
- AIP Publishing, 2013
- 2013
- Engelska.
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Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 113:19
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Abstract
Ämnesord
Stäng
- The bending stiffness of individual, as-grown, vertically aligned carbon nanofibers was measured using a custom-built atomic force microscope placed inside a scanning electron microscope. The internal structure of the nanofiber was best modeled as dual-phase, composed of an inner graphitic core covered with a tapered amorphous carbon shell. It was found that the fibers have a relatively low bending stiffness, with Young's modulus values of about 10 GPa for the inner core and 65 GPa for the outer shell. The low Young's modulus of the inner core is attributed to a non-zero angle between the graphitic sheets and the nanofiber axis. The weak shear modulus between graphitic sheets thereby dominates the mechanical behaviour of the fibers.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- elastic-modulus
- nanotubes
- switches
- Physics
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- ref (ämneskategori)
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