Stick-Slip Control in Nanoscale Boundary Lubrication by Surface Wettability

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorChen, Weien_US
dc.contributor.authorFoster, Adam S.en_US
dc.contributor.authorAlava, Mikko J.en_US
dc.contributor.authorLaurson, Lasseen_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorComplex Systems and Materialsen
dc.date.accessioned2016-09-23T06:38:16Z
dc.date.issued2015en_US
dc.description.abstractWe study the effect of atomic-scale surface-lubricant interactions on nanoscale boundary-lubricated friction by considering two example surfaces—hydrophilic mica and hydrophobic graphene—confining thin layers of water in molecular dynamics simulations. We observe stick-slip dynamics for thin water films confined by mica sheets, involving periodic breaking-reforming transitions of atomic-scale capillary water bridges formed around the potassium ions of mica. However, only smooth sliding without stick-slip events is observed for water confined by graphene, as well as for thicker water layers confined by mica. Thus, our results illustrate how atomic-scale details affect the wettability of the confining surfaces and consequently control the presence or absence of stick-slip dynamics in nanoscale friction.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationChen, W, Foster, A S, Alava, M J & Laurson, L 2015, 'Stick-Slip Control in Nanoscale Boundary Lubrication by Surface Wettability', Physical Review Letters, vol. 114, no. 9, 095502, pp. 1-5. https://doi.org/10.1103/PhysRevLett.114.095502en
dc.identifier.doi10.1103/PhysRevLett.114.095502en_US
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.otherPURE UUID: b87d2265-25fa-410d-ae6a-85f1da5c43ccen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b87d2265-25fa-410d-ae6a-85f1da5c43ccen_US
dc.identifier.otherPURE LINK: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.095502en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/3267165/PhysRevLett.114.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/22234
dc.identifier.urnURN:NBN:fi:aalto-201609234238
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseriesVolume 114, issue 9, pp. 1-5en
dc.rightsopenAccessen
dc.subject.keywordfrictionen_US
dc.subject.keywordlubricationen_US
dc.subject.keywordmolecular dynamicsen_US
dc.titleStick-Slip Control in Nanoscale Boundary Lubrication by Surface Wettabilityen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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