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Type: Artigo
Title: On the phonon dissipation contribution to nanoscale friction by direct contact
Author: Mello, S. R. S. de
Costa, M. E. H. M. da
Menezes, C. M.
Boeira, C. D.
Freire Jr., F. L.
Alvarez, F.
Figueroa, C. A.
Abstract: The friction phenomenon is a ubiquitous manifestation of nature. Models considering phononic, electronic, magnetic, and electrostatic interactions are invoked to explain the fundamental forces involved in the friction phenomenon. In order to establish the incidence of the phonon prompting at the nanoscale friction by direct contact, we study a diamond spherical dome sliding on carbon thin films containing different amount of deuterium and hydrogen. The friction coefficient decreases by substituting hydrogen by deuterium atoms. This result is consistent with an energy dissipation vibration local mechanism from a disordered distribution of bond terminators.
Subject: Fricção
Carbono amorfo
Amorphous carbon
Country: Reino Unido
Editor: Nature Publishing Group
Rights: aberto
Identifier DOI: 10.1038/s41598-017-03046-8
Date Issue: 2017
Appears in Collections:IFGW - Artigos e Outros Documentos

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