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The frictional behavior of a vertically aligned carbon-nanotube (VACNT) film against gold tips was studied in air. In these experiments, the film was 6 μm thick, the tip radii 4.5–30 μm, the applied forces smaller than 5 μN, and speeds were 0.15–24 μm/s. In spite of the null adhesion force to the gold tip, extremely high friction coefficients of 1.0–2.2 were found for the VACNT film. No dependence of friction on speed or tip radius was observed.
Published in:
Applied Physics Letters
(Volume:85
,
Issue:
14
)
Date of Publication: Oct 2004
- Page(s):
- 2780 - 2781
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.1804254
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 18 June 2009
- Issue Date :
- Oct 2004
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