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

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

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 go...

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Veröffentlicht in:Applied physics letters 2004-10, Vol.85 (14), p.2780-2781
Hauptverfasser: Kinoshita, Hiroshi, Kume, Ippei, Tagawa, Masahito, Ohmae, Nobuo
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container_title Applied physics letters
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creator Kinoshita, Hiroshi
Kume, Ippei
Tagawa, Masahito
Ohmae, Nobuo
description 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.
doi_str_mv 10.1063/1.1804254
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title High friction of a vertically aligned carbon-nanotube film in microtribology
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