First principles molecular dynamics study friction and adhesion of DLC films
The strong asymmetry in the rate of polishing between different directions on the (110) surface is the characteristic of diamond film. The surface friction and adhesion of diamond-like carbon films was studied by first principles molecular dynamics. Our study ensured the models of interaction and the range of adhesion force between diamond-like carbon films, and the distributing of vdW force on films friction surface. Results obtained show that the force which produced between friction surfaces is the function of lateral distance, and the performance is obviously different on <001> and <1-10> directions. We assumed the friction on <1-10> direction is always higher than the friction on <001> direction, and the tip can be advanced much farther before reaching a yield point. Density-functional theory simulation have been applied to the DLC films by the CASTEP code which in Materials Studio software.
WANG Lili HU Wenjun WAN Qiang HE Tiening ZHAO Xiaoping
China Academy of Engineering Physics, Computer Application Institute.P.O.Box 919-1201, Mian Yang, 62 China Academy of Engineering Physics, Structure Mechanics Institute.P.O.Box 919-1201, Mian Yang, 621
国际会议
武汉
英文
554-562
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）