Dresden 2011 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 59: Poster Session III (Nanotribology; Polymeric biomolecular films; Organic electronics and photovoltaics, Covalent networks on surfaces; Phase transitions; Particles and clusters; Transparent conductive oxides)
O 59.5: Poster
Mittwoch, 16. März 2011, 17:30–21:00, P3
Wear measurement by friction force and dynamic force microscopy — Özhan Ünverdi1, •Tobias Meier1, Jan-Erik Schmutz2,3, and Hendrik Hölscher1 — 1Institute for Microstructure Technology (IMT), Karlsruhe Institute of Technology, P.O. box 3640, 76021 Karlsruhe, Germany — 2Center for Nanotechnology (CeNTech), Heisenbergstr. 11, 48149 Münster, Germany — 3Physikalisches Institutm Westfälische Wilhelms Universität Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany
For measuring nano-scale wear, we introduce a new technique using friction force and dynamic force microscopy. As the cantilever resonance frequency depends on mass of the tip, we can measure the increase or decrease of the tip's worn mass down to some picograms due to the resonance frequency shift of the cantilever. By attaching a small sphere to the upper end of the cantilever's tip we can detect the nano-wear of several material combinations with this approach.