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Research Article | Open Access

Microscale study of frictional properties of graphene in ultra high vacuum

Diego MARCHETTO1,†, Tim FESER2, Martin DIENWIEBEL1,2( )
Fraunhofer-Institute for Mechanics of Materials, Microtribology Center µTC, Wöhlerstr. 11, 79108 Freiburg, Germany
Karlsruhe Institute of Technology, Institute for Applied Materials-Computational Materials Science IAM-CMS, Kaiserstr. 12, 76131 Karlsruhe, Germany
Università di Modena e Reggio Emilia,CNR-Istituto Nanoscienze S3, Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Via Campi, 213/a, 41125 Modena, Italy
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Abstract

We report on the frictional properties of epitaxial graphene on SiC in ultra high vacuum. Measurements have been performed using a microtribometer in the load regime of 0.5 to 1 mN. We observed that a ruby sphere sliding against graphene results in very low friction coefficients ranging from 0.02 to 0.05. The friction and also the stability of the graphene layer is higher than that under similar conditions in ambient conditions. The friction shows a load dependence. Finally it was found that graphene masks the frictional anisotropy which was observed on the SiC surface.

Keywords

grapheneSiCfrictionvacuummicrotribologyanisotropy

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Friction
Volume 3 Issue 2,
June 2015
Pages 161-169
DOI: 10.1007/s40544-015-0080-8

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MARCHETTO D, FESER T, DIENWIEBEL M. Microscale study of frictional properties of graphene in ultra high vacuum. Friction, 2015, 3(2): 161-169. https://doi.org/10.1007/s40544-015-0080-8

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Received: 12 December 2014
Revised: 10 February 2015
Accepted: 24 March 2015
Published: 30 June 2015
© The author(s) 2015

This article is published with open access at Springerlink.com

Open Access: This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.