@article{KANO2014, 
author = {Makoto KANO and Jean Michel MARTIN and Kentaro YOSHIDA and Maria Isabel DE BARROS BOUCHET},
title = {Super-low friction of ta-C coating in presence of oleic acid},
year = {2014},
journal = {Friction},
volume = {2},
number = {2},
pages = {156-163},
keywords = {epoxy composite, short carbon fiber, friction, wear},
url = {https://www.sciopen.com/article/10.1007/s40544-014-0047-1},
doi = {10.1007/s40544-014-0047-1},
abstract = {Friction tests have been carried out on bearing steel friction pairs coated with a-C:H and ta-C under lubricated conditions with 1-hexadecene and pure oleic acid, respectively. Main results show that ta-C leads to the super-low regime with oleic acid (friction coefficient below 0.01) and that a-C:H is quite well lubricated by 1-hexadecen. Surface analyses by coupling X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS) have been carried out in the case of oleic acid with ta-C and a-C:H coatings. Results show that tribochemical reactions have occurred. OH groups terminate the ta-C surface whereas a-C:H is covered by a thin tribofilm and is terminated by oleic acid monolayers. The superlow regime in the case of ta-C is mainly attributed to the presence of the OH-termination.}
}