我所刁东风教授等的论文被Tribology International（Q1）接受阅读次数 [2235] 发布时间 :2015-03-03 11:49:35
我所在国际期刊Tribology International（Q1）上发表题为Nanoscratching of multi-layer graphene by molecular dynamics simulations论文一篇。
Nanoscratching of multi-layer graphene by molecular dynamics simulations
Qi Zhang1,2, Dongfeng Diao1*and Momoji Kubo3
TribologyInternational 88(2015)85–88 (PDF-File)
1) Institute of Nanosurface Science and Engineering, Shenzhen University, Shenzhen 518060, China
2) Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, School of
Mechanical Engineering, Xi’an Jiaotong University, Xi'an 710049, China
3) Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University,
Sendai 980-8579, Japan
Abstract
Graphene or graphene-based materials are becoming a glowing material to be expected to control a frictional behavior
at contact interface. However, due to its atomic layer to layer structure, it is difficult to clarify its frictional mechanism through experimental observation. Therefore, in this paper the frictional behavior of diamond tip nanoscratching on multi-layer graphene was investigated by Molecular Dynamics (MD) simulation. Results show superlow frictional behavior of graphene layers when the scratch depth is less than 5.3 Å, when the scratch depth is over this value, the friction coefficient increases at least 10 times which is caused by phase transition of graphene layers. Besides, we discussed the sensitivity of friction coefficient to the shapes of scratch tip and its anisotropy.