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Title: Investigation of the effects of commensurability on friction between concentric carbon nanotubes
Authors: Zhu, Chunzhang
Shenai, Prathamesh Mahesh
Zhao, Yang
Issue Date: 2012
Source: Zhu, C., Shenai, P. M., & Zhao, Y. (2012). Investigation of the effects of commensurability on friction between concentric carbon nanotubes. Nanotechnology, 23(1).
Series/Report no.: Nanotechnology
Abstract: That a commensurate contact usually leads to greater friction than an incommensurate one is a commonly held view in nanotribology. However, this perception seems paradoxical as commensurability is found to have negligible effect on the energy dissipation in double-walled carbon nanotube (DWNT) based oscillators. Using molecular dynamics simulations, we investigate such a paradox from the viewpoint of the atomic origin of friction. It is revealed that the commensurability cannot have a pronounced effect on friction unless the intertube interaction strength and the energy corrugation exceed their critical values. Both the commensurate and incommensurate oscillators constructed from natural DWNTs with an intertube distance of about 3.4 Å, may thus exhibit similar performance.
ISSN: 0957-4484
DOI: 10.1088/0957-4484/23/1/015702
Rights: © 2012 IOP Publishing Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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