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Influence of Humidity on Microtribology of Vertically Aligned Carbon Nanotube Film

138   0   0.0 ( 0 )
 Added by Viviane Turq
 Publication date 2007
  fields Physics
and research's language is English
 Authors Viviane Turq




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The aim of this study is to probe the influence of water vapor environment on the microtribological properties of a forestlike vertically aligned carbon nanotube (VACNT) film, deposited on a silicon (001) substrate by chemical vapor deposition. Tribological experiments were performed using a gold tip under relative humidity varying from 0 to 100%. Very low adhesion forces and high friction coefficients of 0.6 to 1.3 resulted. The adhesion and friction forces were independent of humidity, due probably to the high hydrophobicity of VACNT. These tribological characteristics were compared to those of a diamond like carbon (DLC) sample.



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