Friction between Diamond-Like Carbon (DLC) Films-a Molecular Dynamics Study

被引:0
作者
Ma, Tianbao [1 ]
Hu, Yuanzhong [1 ]
Wang, Hui [1 ]
机构
[1] Tsinghua Univ Beijing, State Key Lab Tribol, Beijing, Peoples R China
来源
ADVANCED TRIBOLOGY | 2009年
关键词
Molecular dynamics; Diamondlike carbon; Tribology; Friction; AMORPHOUS-CARBON; WEAR; TRIBOLOGY; COATINGS; STORAGE; MEMS;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Molecular dynamics (MD) simulations are carried out to study the friction behavior of diamondlike carbon (DLC) films. The friction with hydrogen-free diamond film shows huge coefficient of friction (>1). The function of hydrogen is also investigated. Hydrogen atoms act as the isolating layer between the carbon films which makes the van der Waals interaction dominating. There's no carbon-carbon bonds formation or rupture between the two surfaces, and the friction coefficient drops to a large extent. The results agree well with experimental ones. The work provides ideas achieve near-zero friction.
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页码:554 / 555
页数:2
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