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Wear, friction and sliding speed correlations on Langmuir-Blodgett-films observed by atomic force microscopy

Overney, R. M. and Takano, H. and Fujihira, M. and Meyer, E. and Guntherodt, H. J.. (1994) Wear, friction and sliding speed correlations on Langmuir-Blodgett-films observed by atomic force microscopy. Thin Solid Films, Vol. 240, H. 1-2. pp. 105-109.

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Official URL: http://edoc.unibas.ch/dok/A5839496

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Abstract

The dependence of friction and wear on sliding parameters has been investigated with an atomic force microscope. Measurements have been performed on Langmuir-Blodgett monolayers. For the purpose of this study a special counterion polymer has been used to supply a facile insight into the friction and wear dependence on the scan velocity. With a minimum constant load in the order of 10(-8) N, wear has been observed to occur randomly at film defect sites but also on initially intact film areas. Wear is always accompanied by an increase of friction forces. A wearless friction dependence on the scan velocity could not be observed. The process of wear is discussed in terms of shear forces and adhesive contact forces. Whereas the plastic deformation at the film defect sites can be explained by shear forces, the wear process on initially defect free surfaces could be related to adhesive forces and quantified.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0040-6090
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:43

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