Abstract
Influence of environmental H atoms on the tribological behaviors of DLC films is investigated via molecular dynamics simulations. These H atoms significantly reduce the friction force, and the reduction mechanisms depend on friction temperatures. At low friction temperatures, the H atoms are concentrated near contact interfaces, and their passivations highly reduce the interfacial adhesion, resulting in the low friction force. However, high friction temperatures induce the significant diffusion of the H atoms into the DLC films and thermally expand such films and increase their graphitization, causing a wide region with easy-shear properties to reduce the friction force. It is believed that these mechanisms of friction reduction can improve the understanding of the superlow friction of DLC films in H2 environment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
