Recent studies have proved the usefulness of macroscopic surface patterning for the improvement of tribological performances of sliding contacts. Here we investigate the effects of scaling down the texturing dimensions to the nanoscale. By means of classical molecular dynamics simulations, we show that the sliding frictional properties of a thin lubricant film are significantly affected by the presence of nanoscale superficial patterning of the moving confining walls, leading to a "mitigation" of the so-called stick-slip regime and to a consequent reduction of friction. We believe these findings to be relevant for nanotechnology applications.
Lubricated friction on nanopatterned surfaces via molecular dynamics simulations / Capozza, R; Fasolino, A; Ferrario, Mauro; Vanossi, A.. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 77:23(2008), pp. 235432-1-235432-7. [10.1103/PhysRevB.77.235432]
Lubricated friction on nanopatterned surfaces via molecular dynamics simulations
FERRARIO, Mauro;
2008
Abstract
Recent studies have proved the usefulness of macroscopic surface patterning for the improvement of tribological performances of sliding contacts. Here we investigate the effects of scaling down the texturing dimensions to the nanoscale. By means of classical molecular dynamics simulations, we show that the sliding frictional properties of a thin lubricant film are significantly affected by the presence of nanoscale superficial patterning of the moving confining walls, leading to a "mitigation" of the so-called stick-slip regime and to a consequent reduction of friction. We believe these findings to be relevant for nanotechnology applications.Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris