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Electromechanical properties of carbon nanotube networks under compression

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dc.title Electromechanical properties of carbon nanotube networks under compression en Slobodian, Petr Říha, Pavel Olejník, Robert Sáha, Petr
dc.relation.ispartof Measurement Science and Technology
dc.identifier.issn 0957-0233 OCLC, Ulrich, Sherpa/RoMEO, JCR 2011
utb.relation.volume 22
utb.relation.issue 12
dc.citation.spage 1
dc.citation.epage 7
dc.event.title International Conference on Sensing Technology (ICST)
dc.event.location Lecce
utb.event.state-en Italy
utb.event.state-cs Itálie
dc.type article
dc.language.iso en
dc.publisher IOP Publishing, Ltd. en
dc.identifier.doi 10.1088/0957-0233/22/12/124006
dc.subject carbon nanotube network en
dc.subject compression en
dc.subject electrical conductivity en
dc.subject stress sensor en
dc.description.abstract The network of entangled multiwall carbon nanotubes and the composite consisting of a polystyrene filter-supported nanotube are introduced as conductors whose conductivity is sensitive to compressive stress both in the course of monotonic stress growth and when loading/unloading cycles are imposed. The testing has shown as much as a 100% network conductivity increase at the maximum applied stress. It indicates the favorable properties of the multiwall carbon nanotube network for its use as a stress-electric signal transducer. To model the conductivity-stress dependence, it is hypothesized that compression increases local contact forces between the nanotubes, which in turn leads to a decrease in the contact resistance between them. The lack of detailed knowledge of the mechanism as well as an unclear shift from individual contacts to the whole network conductance behavior is circumvented with a statistical approach. In this respect, the conductivity/compression data were fitted well using the Weibull distribution for the description of the nanotube contact resistance distribution. © 2011 IOP Publishing Ltd. en
utb.faculty Faculty of Technology
utb.faculty University Institute
utb.identifier.rivid RIV/70883521:28110/11:43865727!RIV12-MSM-28110___
utb.identifier.rivid RIV/70883521:28610/11:43865727!RIV12-MSM-28610___
utb.identifier.obdid 43865743
utb.identifier.scopus 2-s2.0-81555220992
utb.identifier.wok 000298148200008
utb.identifier.coden MSTCE
utb.source j-scopus 2012-02-10T13:15:13Z 2012-02-10T13:15:13Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Slobodian, Petr
utb.contributor.internalauthor Olejník, Robert
utb.contributor.internalauthor Sáha, Petr
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