Tribological Properties of Single-Walled Carbon Nanotube Solids
Binder-free single-walled carbon nanotube (SWCNT) solids were evaluated for solid lubrication applications. The steady-state friction coefficients (μ) for the SWCNT solids were found to reach values as low as 0.22–0.24, according to unidirectional sliding friction tests
using Si3N4 counterparts in air. The values were slightly higher than that of bulk graphite material (μ = 0 20). SEM and Raman analyses showed that most SWCNTs that existed in the friction surface transformed into SWCNT-derived transferred film made up of amorphous
carbon during sliding. The resultant friction behavior may be related to the smearing of transferred film over the contact area, which was expected to permit easy shear and then help to achieve a lubricating effect during sliding.
Keywords: SINGLE-WALLED CARBON NANOTUBE; SOLID LUBRICATION; TRANSFERRED FILM; TRIBOLOGICAL PROPERTIES
Document Type: Research Article
Publication date: 01 May 2008
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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