Vis enkel innførsel

dc.contributor.authorThorén, Per-Anders
dc.contributor.authorde Wijn, Astrid S.
dc.contributor.authorBorgani, Riccardo
dc.contributor.authorForchheimer, Daniel
dc.contributor.authorHaviland, David B.
dc.date.accessioned2018-03-26T08:49:28Z
dc.date.available2018-03-26T08:49:28Z
dc.date.created2016-12-16T15:35:51Z
dc.date.issued2016
dc.identifier.citationNature Communications. 2016, 7 .nb_NO
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/11250/2492053
dc.description.abstractFriction is a complicated phenomenon involving nonlinear dynamics at different length and time scales. Understanding its microscopic origin requires methods for measuring force on nanometer-scale asperities sliding at velocities reaching centimetres per second. Despite enormous advances in experimental technique, this combination of small length scale and high velocity remain elusive. We present a technique for rapidly measuring the frictional forces on a single asperity over a velocity range from zero to several centimetres per second. At each image pixel we obtain the velocity dependence of both conservative and dissipative forces, revealing the transition from stick-slip to smooth sliding friction. We explain measurements on graphite using a modified Prandtl–Tomlinson model, including the damped elastic deformation of the asperity. With its improved force sensitivity and small sliding amplitude, our method enables rapid and detailed surface mapping of the velocity dependence of frictional forces with less than 10 nm spatial resolution.nb_NO
dc.language.isoengnb_NO
dc.publisherNature Publishing Groupnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleImaging high-speed friction at the nanometer scalenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber6nb_NO
dc.source.volume7nb_NO
dc.source.journalNature Communicationsnb_NO
dc.identifier.doi10.1038/ncomms13836
dc.identifier.cristin1414259
dc.description.localcode(c) The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License.nb_NO
cristin.unitcode194,64,92,0
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal