Please use this identifier to cite or link to this item: doi:10.22028/D291-29325
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Title: Friction force microscopy of tribochemistry and interfacial ageing for the SiOx/Si/Au system
Author(s): Petzold, Christiane
Koch, Marcus
Bennewitz, Roland
Language: English
Title: Beilstein Journal of Nanotechnology
Volume: 9
Startpage: 1647
Endpage: 1658
Publisher/Platform: Beilstein-Institut
Year of Publication: 2018
Publikation type: Journal Article
Abstract: 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.
DOI of the first publication: 10.3762/bjnano.9.157
Link to this record: hdl:20.500.11880/28130
ISSN: 2190-4286
Date of registration: 17-Oct-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Physik
Professorship: NT - Keiner Professur zugeordnet
Collections:UniBib – Die Universitätsbibliographie

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