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Torque and twist against superlubricity

Filippov, Alexander E.; Dienwiebel, Martin; Frenken, Joost W.M.; Klafter, Joseph; Urbakh, Michael

Abstract:
Superlubricity between incommensurate surfaces provides a desired low-friction state essential for the function of small-scale machines. Here we demonstrate experimentally and theoretically that superlubricity in contacts lubricated by lamellar solids might be eliminated due to torque-induced reorientation coupled to lateral motion. We find that the possibility of reorientation always leads to stabilization of a high frictional state which corresponds to a commensurate configuration.

Abstract (englisch):
Superlubricity between incommensurate surfaces provides a desired low-friction state essential for the function of small-scale machines. Here we demonstrate experimentally and theoretically that superlubricity in contacts lubricated by lamellar solids might be eliminated due to torque-induced reorientation
coupled to lateral motion. We find that the possibility of reorientation always leads to stabilization of a
high frictional state which corresponds to a commensurate configuration.

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Volltext §
DOI: 10.5445/IR/1000070933
Originalveröffentlichung
DOI: 10.1103/PhysRevLett.100.046102
Scopus
Zitationen: 128
Web of Science
Zitationen: 120
Coverbild
Zugehörige Institution(en) am KIT Fakultät für Maschinenbau (MACH)
Institut für Angewandte Materialien - Computational Materials Science (IAM-CMS)
Publikationstyp Zeitschriftenaufsatz
Jahr 2008
Sprache Englisch
Identifikator ISSN: 1092-0145
urn:nbn:de:swb:90-709336
KITopen-ID: 1000070933
Erschienen in Physical review letters
Band 100
Seiten 046102
Schlagworte Superlubricity, Graphite, Graphene
Nachgewiesen in Scopus
Web of Science
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