Tribological Properties of Densely Packed Vertically Aligned Carbon Nanotube Film on SiC Formed by Surface Decomposition

Characteristic tribological properties, such as nonlinearity of the friction force−normal load curve, high coefficient of friction, and good wear-resistant performance were observed on densely packed, vertically aligned carbon nanotubes (CNTs) with different diameters and lengths using atomic force...

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Veröffentlicht in:	Nano letters 2007-11, Vol.7 (11), p.3285-3289
Hauptverfasser:	Miyake, Koji, Kusunoki, Michiko, Usami, Hatsuhiko, Umehara, Noritsugu, Sasaki, Shinya
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon Compounds, Inorganic - chemistry Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Friction Materials science Mechanical and acoustical properties Mechanical and acoustical properties of condensed matter Mechanical properties of nanoscale materials Microscopy, Atomic Force Microscopy, Electron, Transmission Models, Statistical Molecular Conformation Nanocrystalline materials Nanoscale materials and structures: fabrication and characterization Nanotechnology - methods Nanotubes Nanotubes, Carbon - chemistry Physical properties of thin films, nonelectronic Physics Silicon Compounds - chemistry Surface Properties Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Beschreibung
Zusammenfassung:	Characteristic tribological properties, such as nonlinearity of the friction force−normal load curve, high coefficient of friction, and good wear-resistant performance were observed on densely packed, vertically aligned carbon nanotubes (CNTs) with different diameters and lengths using atomic force microscopy. Shorter and thicker CNTs were found to have higher coefficients of friction. The observed properties were attributed to the nonlinear elastic property of the CNTs caused by buckling.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl0714482