Simulations of the Anisotropy of Friction Force between a Silicon Tip and a Substrate at Nano-scale
(0) In this paper,the anisotropy of the friction force with the variety of rotation angle between a silicon tip and a substrate was investigated using molecular dynamics simulations.When the silicon tip sliding over the silicon substrate under incommensurate contacting surfaces,the results of simulations illustrate that the sliding friction forces decrease with the increase of rotation angle from 0°to 45°,and they increase with the increase of rotation angle from 45°to 90°.Further a approximate symmetrical curve of the friction force with respect to 45°angle can be obtained and at this angle the friction force is minimum and close to superlubricity.However,at the same angle the friction force is no more decrease with the increase of the temperature and its size mainly depends to the degree of the commensurability of the contacting surfaces instead of the temperature.
anisotropy friction force superlubricity temperature molecular dynamics
Chen Lihuan Wang Yufeng Bu Hao Chen Yunfei
School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）