TITLE

High friction of a vertically aligned carbon-nanotube film in microtribology

AUTHOR(S)
Kinoshita, Hiroshi; Kume, Ippei; Tagawa, Masahito; Ohmae, Nobuo
PUB. DATE
October 2004
SOURCE
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2780
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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.
ACCESSION #
14713388

 

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