Assembling of carbon nanotubes film responding to significant reduction wear and friction on steel surface

作者：Zhang, Bin^*; Xue, Yong; Qiang, Li; Gao, Kaixong; Liu, Qiao^*; Yang, Baoping; Liang, Aiming; Zhang, Junyan^*

来源：Applied Nanoscience, 2017, 7(8): 835-842.

DOI：10.1007/s13204-017-0622-7

• Carbon nanotubes
• Friction
• Wear
• Films
• Lubrication

Friction properties of carbon nanotubes have been widely studied and reported, however, the friction properties of carbon nanotubes related on state of itself. It is showing superlubricity under nanoscale, but indicates high shear adhesion as aligned carbon nanotube film. However, friction properties under high load (which is commonly in industry) of carbon nanotube films are seldom reported. In this paper, carbon nanotube films, via mechanical rubbing method, were obtained and its tribology properties were investigated at high load of 5 to 15 N. Though different couple pairs were employed, the friction coefficients of carbon nanotube films are nearly the same. Compared with bare stainless steel, friction coefficients and wear rates under carbon nanotube films lubrication reduced to, at least, 1/5 and 1/(4.3-14.5), respectively. Friction test as well as structure study were carried out to reveal the mechanism of the significant reduction wear and friction on steel surface. One can conclude that sliding and densifying of carbon nanotubes at sliding interface contribute to the sufficient decrease of friction coefficients and wear rates.

• 出版日期2017-11
• 单位兰州理工大学; 中国科学院大学; 宁波工程学院; 中国科学院兰州化学物理研究所