Smooth sliding and superlubricity in the nanofriction of collapsed carbon nanotubes

Hao Xu; Jihong Al-Ghalith; Traian Dumitrică

doi:10.1016/j.carbon.2018.04.011

Smooth sliding and superlubricity in the nanofriction of collapsed carbon nanotubes

Hao Xu, Jihong Al-Ghalith, Traian Dumitrică

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28 Scopus citations

Abstract

We present the characteristics of the sliding friction in large-diameter collapsed carbon nanotubes (CNTs) as emerged from molecular dynamics simulations. The friction force is found to depend strongly on the CNT sliding velocity, the interface contact area, interface commensuration, and temperature. The non-classical smooth sliding and superlubric behaviors identified at the molecular level give a useful starting reference to the ongoing efforts aimed at engineering the mechanical load transfer in material systems comprising collapsed CNTs.

Original language	English (US)
Pages (from-to)	531-535
Number of pages	5
Journal	Carbon
Volume	134
DOIs	https://doi.org/10.1016/j.carbon.2018.04.011
State	Published - Aug 2018

Bibliographical note

Funding Information:
We acknowledge useful discussions with G. Odegard and O. Hod. This work was supported by NASA's Space Technology Research Grant NNX16AE03G and by the Institute for Ultra-Strong Composites by Computational Design , Grant NNX17AJ32G . Resources supporting this work were provided by the NASA High End Computing Program through the NASA Advanced Supercomputing Division at Ames Research Center .

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© 2018 Elsevier Ltd

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title = "Smooth sliding and superlubricity in the nanofriction of collapsed carbon nanotubes",

abstract = "We present the characteristics of the sliding friction in large-diameter collapsed carbon nanotubes (CNTs) as emerged from molecular dynamics simulations. The friction force is found to depend strongly on the CNT sliding velocity, the interface contact area, interface commensuration, and temperature. The non-classical smooth sliding and superlubric behaviors identified at the molecular level give a useful starting reference to the ongoing efforts aimed at engineering the mechanical load transfer in material systems comprising collapsed CNTs.",

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AU - Al-Ghalith, Jihong

AU - Dumitrică, Traian

N1 - Funding Information: We acknowledge useful discussions with G. Odegard and O. Hod. This work was supported by NASA's Space Technology Research Grant NNX16AE03G and by the Institute for Ultra-Strong Composites by Computational Design , Grant NNX17AJ32G . Resources supporting this work were provided by the NASA High End Computing Program through the NASA Advanced Supercomputing Division at Ames Research Center . Publisher Copyright: © 2018 Elsevier Ltd

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N2 - We present the characteristics of the sliding friction in large-diameter collapsed carbon nanotubes (CNTs) as emerged from molecular dynamics simulations. The friction force is found to depend strongly on the CNT sliding velocity, the interface contact area, interface commensuration, and temperature. The non-classical smooth sliding and superlubric behaviors identified at the molecular level give a useful starting reference to the ongoing efforts aimed at engineering the mechanical load transfer in material systems comprising collapsed CNTs.

AB - We present the characteristics of the sliding friction in large-diameter collapsed carbon nanotubes (CNTs) as emerged from molecular dynamics simulations. The friction force is found to depend strongly on the CNT sliding velocity, the interface contact area, interface commensuration, and temperature. The non-classical smooth sliding and superlubric behaviors identified at the molecular level give a useful starting reference to the ongoing efforts aimed at engineering the mechanical load transfer in material systems comprising collapsed CNTs.

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Smooth sliding and superlubricity in the nanofriction of collapsed carbon nanotubes

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