Torque and twist against superlubricity
Filippov, Alexander E.; Dienwiebel, Martin
; Frenken, Joost W. M.; Klafter, Joseph; Urbakh, Michael
; Frenken, Joost W. M.; Klafter, Joseph; Urbakh, MichaelAbstract:
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.
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.
| Zugehörige Institution(en) am KIT | Institut für Angewandte Materialien – Computational Materials Science (IAM-CMS) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 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 |
| Schlagwörter | Superlubricity, Graphite, Graphene |
| Nachgewiesen in | Dimensions Web of Science Scopus |