Title
Tunable Friction Behavior of Oriented Carbon Nanotube Films
Document Type
Article
Publication Date
10-2006
Publication Source
Tribology Letters
Abstract
Measured friction coefficients of carbon nanotubes vary widely from μ < 0.1–μ > 1.0 [1–6], while theoretical studies suggest intrinsically high friction coefficients, approaching unity [7]. Here we report that measured friction coefficients of MWNT films are strong functions of surface chemistry and temperature, but are not dependent on the presence of water vapor. We hypothesize that the origin of the temperature dependence arises from the interaction of the surface chemical groups on the nanotubes [8–12] and rubbing counterface. The friction coefficient of individual films can be easily tuned by changing the surface temperature and chemistry of either the countersurface or the nanotubes, we have demonstrated the ability to create and control high and low friction pairs through plasma treatments of the nanotube films with argon, hydrogen, nitrogen, and oxygen. This behavior is completely reversible, and when coupled with the superior strength, thermal, and electrical properties of nanotubes, provides a versatile tunable, multifunctional tribological system.
Inclusive pages
85-90
ISBN/ISSN
1023-8883
Copyright
Copyright © 2006, Springer
Publisher
Kluwer Academic Publishers-Plenum Publishers
Volume
24
Issue
1
eCommons Citation
Dickrell, Pamela L.; Pal, Sunil K.; Bourne, Gerald R.; Muratore, Christopher; Voevodin, Andrey A.; Ajayan, Pulickel M.; Schadler, Linda S.; and Sawyer, W. Gregory, "Tunable Friction Behavior of Oriented Carbon Nanotube Films" (2006). Chemical and Materials Engineering Faculty Publications. 161.
https://ecommons.udayton.edu/cme_fac_pub/161
COinS
Comments
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