Nanoindentation of thin films: Simulations and experiments

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dc.contributor.authorNair, A. K.en
dc.contributor.authorCordill, M. J.en
dc.contributor.authorFarkas, Dianaen
dc.contributor.authorGerberich, W. W.en
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2014-07-15en
dc.date.accessioned2014-07-21T15:49:39Zen
dc.date.available2014-07-21T15:49:39Zen
dc.date.issued2009-03-01en
dc.description.abstractAtomistic Simulations of nanoindentation of a 20-nm-thick Ni thin film oriented in the [111] direction were carried out to study the effects of indenter velocity and radii, interatomic potentials, and the boundary conditions used to represent the substrate. The simulation results were compared directly with experimental results of Ni thin film of the same thickness and orientation. It was found that the high indenter velocity does not affect the hardness value significantly. Different radii used for indentation also have negligible effects on the hardness value. Two different interatomic potentials were tested, giving significantly different hardness values but both within 20% of the experimental result. Different boundary conditions used to represent the substrate have a significant effect for relatively deep indentation simulations.en
dc.description.sponsorshipNational Science Foundation (NSF), Civil and Mechanical Systems, and Materials Theoryen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationNair, A. K.; Cordill, M. J.; Farkas, D.; Gerberich, W. W., "Nanoindentation of thin films: Simulations and experiments," J. Mater. Res., Vol. 24, No. 3, Mar 2009, 1135-1141. DOI: 10.1557/jmr.2009.0136en
dc.identifier.doihttps://doi.org/10.1557/jmr.2009.0136en
dc.identifier.issn0884-2914en
dc.identifier.urihttp://hdl.handle.net/10919/49637en
dc.identifier.urlhttp://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7950646&fulltextType=RA&fileId=S0884291400031915en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMolecular-dynamics simulationsen
dc.subjectStress-strain curvesen
dc.subjectSphericalen
dc.subjectNanoindentationen
dc.subjectDislocation nucleationen
dc.subjectAtomistic simulationsen
dc.subjectIncipient plasticityen
dc.subjectNanoindentationen
dc.subjectTip radiusen
dc.subjectSubstrateen
dc.subjectDeformationen
dc.subjectMaterials science, multidisciplinaryen
dc.titleNanoindentation of thin films: Simulations and experimentsen
dc.title.serialJournal of Materials Researchen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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