Interplay between stick-slip motion and structural phase transitions in dry sliding friction

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buir.contributor.authorÇıracı, Salim
buir.contributor.orcidÇıracı, Salim|0000-0001-8023-9860
dc.citation.epage12895en_US
dc.citation.issueNumber19en_US
dc.citation.spage12892en_US
dc.citation.volumeNumber55en_US
dc.contributor.authorBuldum, A.en_US
dc.contributor.authorÇıracı, Salimen_US
dc.date.accessioned2016-02-08T10:48:16Z
dc.date.available2016-02-08T10:48:16Z
dc.date.issued1997en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractSimulations of dry sliding friction between a metal asperity and an incommensurate metal surface reveal unusual atomic processes. The lateral force exhibits a quasiperiodic variation with the displacement of an asperity; each period consists of two different stick-slip processes involving structural transitions. While one layer of asperity changes and matches the substrate lattice in the first slip, two asperity layers merge into a new one through a structural transition during the second slip. This leads to wear. The lateral force decreases abruptly during these slip stages, but it increases between two consecutive slips and resists the relative motion. The analysis of the order suggests that each structural transition is associated with a first-order phase transition. Nonadiabatic atomic rearrangements during these phase transitions involve a new kind of mechanism of energy dissipation in the dry sliding friction.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:48:16Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 1997en
dc.identifier.issn0163-1829
dc.identifier.urihttp://hdl.handle.net/11693/25633
dc.language.isoEnglishen_US
dc.publisherAmerican Physical Societyen_US
dc.source.titlePhysical Review B - Condensed Matter and Materials Physicsen_US
dc.titleInterplay between stick-slip motion and structural phase transitions in dry sliding frictionen_US
dc.typeArticleen_US

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