%0 Journal Article %T Superlubric Properties of Self-mated Hydrogenated Graphite-like Carbon Films %A OU,Yujing %A WANG,Yongfu %A YUE,Zhaofan %A ZHANG,Junyan %J CHINA SURFACE ENGINEERING %@ 1007-9289 %V 32 %N 1 %D 2019 %P 72-77 %K superluricity;friction and wear;graphite-like;DLC;carbon film %X Hydrogenated graphite-like carbon (GLC) films on Si flakes and steel balls were prepared by the combination of plasma enhanced chemical vapor deposition and in-situ plasma nitriding. Frictional behaviors in N2 gas for the friction couples composed of the steel ball-films and Si substrate-ones were discussed. The friction and wear properties with increasing loads of self-mated GLC films were investigated by reciprocating ball-on-disc tribotester, scanning electron microscopy and 3D surface profilometry. The microstructure changes for the films before and after friction were revealed by TEM, Raman and Reflection FTIR. The results show that the friction coefficient decreases from 0.01 to 0.005 when the load is 4 N and 8 N, respectively. This is because the friction can induce the film structure more orderly, and generate more orderly and longer graphene and subsequent flake-like wear debris along the lubricating direction. The self-mated method for hydrogenated GLC films is an effective way to attain superluricity. %R 10.11933/j.issn.1007-9289.20181008004 %U http://www.csejournal.com/zgbmgcen/ch/reader/view_abstract.aspx %1 JIS Version 3.0.0