Volltext-Downloads (blau) und Frontdoor-Views (grau)

Friction force microscopy of tribochemistry and interfacial ageing for the SiOx/Si/Au system

  • Friction force microscopy was performed with oxidized or gold-coated silicon tips sliding on Au(111) or oxidized Si(100) surfaces in ultrahigh vacuum. We measured very low friction forces compared to adhesion forces and found a modulation of lateral forces reflecting the atomic structure of the surfaces. Holding the force-microscopy tip stationary for some time did not lead to an increase in static friction, i.e., no contact ageing was observed for these pairs of tip and surface. Passivating layers from tip or surface were removed in order to allow for contact ageing through the development of chemical bonds in the static contact. After removal of the passivating layers, tribochemical reactions resulted in strong friction forces and tip wear. Friction, wear, and the re-passivation by oxides are discussed based on results for the temporal development of friction forces, on images of the scanned area after friction force microscopy experiments, and on electron microscopy of the tips.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar


Document Type:Article
Author:Christiane PetzoldORCiD, Marcus Koch, Roland BennewitzORCiD
Parent Title (English):Beilstein Journal of Nanotechnology
First Page:1647
Last Page:1658
Year of first Publication:2018
Release Date:2022/08/31
Tag:contact ageing; friction; nanotribology; tribochemistry; wear
Impact:02.269 (2018)
Funding Information:Deutsche Forschungsgemeinschaft
Groups:Interaktive Oberflächen
DDC classes:500 Naturwissenschaften und Mathematik / 530 Physik
Open Access:Open Access
Signature:INM 2018/056
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International