Solid lubrication by multiwalled carbon nanotubes in air and in vacuum
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Aligned and dispersed multiwalled carbon nanotubes (MWNTs) were evaluated for solid lubrication applications. Results obtained from unidirectional sliding friction experiments indicate that MWNTs have superior friction properties and sustainability in air and vacuum. Based on analyses of wear surfaces, transfer films, wear debris, and microstructures, the lubrication mechanism of the MWNTs is discussed.
Keywordsmultiwalled carbon nanotube friction solid lubrication durability vacuum atmosphere
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