Talks and Poster Presentations (without Proceedings-Entry):
A. Vernes, G. Vorlaufer, S. Ilincic, J. Eder, F. Franek:
"Ab initio atomic-scale friction of graphene";
Talk: Institut dŽEtudes Scientifiques de Cargèse,
Cargèse, F;
03-22-2010
- 03-26-2010.
English abstract:
In the present contribution the quasi-static sliding of graphene on top of a semi-infinite graphite is theoretically investigated from an ab initio DFT-based point of view. It is shown that besides of the matching (either commensurate or incommensurate) of atomic surfaces in dry contact, the calculated friction forces are also strongly dependent on the relative angle of the straight sliding path. How this could affect the atomic-scale friction measurementsin the case of graphite, i.e., both stick-slip and structural lubricity regimes, it is also analysed, e.g., by introducing the ab initio atomic forces into the Prandtl-Tomlinson model.
Related Projects:
Project Head Friedrich Franek:
Tribologie
Created from the Publication Database of the Vienna University of Technology.