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Micromachines 2017, 8(3), 84; doi:10.3390/mi8030084

Interface Friction of Double-Walled Carbon Nanotubes Investigated Using Molecular Dynamics †

1
Department of Mechanical Engineering, Chung Yuan Christian University, 200, Chung Pei Rd., Chung Li District, Taoyuan 32023, Taiwan
2
Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editors: Teen-Hang Meen, Shoou-Jinn Chang, Stephen D. Prior and Artde Donald Kin-Tak Lam
Received: 17 February 2017 / Revised: 7 March 2017 / Accepted: 7 March 2017 / Published: 9 March 2017
View Full-Text   |   Download PDF [2082 KB, uploaded 9 March 2017]   |  

Abstract

The interface friction characteristics of double-walled carbon nanotubes (DWCNTs) are studied using molecular dynamics simulations based on the Tersoff potential. The effects of the DWCNT type, outer shell diameter, and temperature are evaluated. The simulation results show that when an inner shell is being pulled out from a DWCNT, the friction force and normal force between shells increase with increasing the outer shell diameter. The noise of the friction force significantly increases with the increasing temperature. Zigzag@zigzag and armchair@armchair DWCNTs exhibit larger friction forces and smaller normal forces compared to those of chiral@chiral DWCNTs. View Full-Text
Keywords: double-walled carbon nanotube; interface friction; friction coefficient; molecular dynamics double-walled carbon nanotube; interface friction; friction coefficient; molecular dynamics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wu, C.-D.; Fang, T.-H.; Tung, F.-Y. Interface Friction of Double-Walled Carbon Nanotubes Investigated Using Molecular Dynamics †. Micromachines 2017, 8, 84.

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