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	Simulating fullerene ball bearings of ultra-low friction
	Li, Xiaoyan ; Yang, Wei
	2010-05-07 ; 2010-05-07
关键词	MOLECULAR-DYNAMICS SIMULATIONS MULTIWALLED CARBON NANOTUBES NANOMETER-SCALE C-60 C-20 Engineering, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied
中文摘要	We report the direct molecular dynamics simulations for molecular ball bearings composed of fullerene molecules (C-60 and C-20) and multi-walled carbon nanotubes. The comparison of friction levels indicates that fullerene ball bearings have extremely low friction (with minimal frictional forces of 5.283 x 10(-7) and 6.768 x 10(-7) nN/atom for C-60 and C-20 bearings) and energy dissipation ( lowest dissipation per cycle of 0.013 and 0.016 meV/atom for C-60 and C-20 bearings). A single fullerene inside the ball bearings exhibits various motion statuses of mixed translation and rotation. The influences of the shaft's distortion on the long-ranged potential energy and normal force are discussed. The phonic dissipation mechanism leads to a non-monotonic function between the friction and the load rate for the molecular bearings.
语种	英语 ; 英语
出版者	IOP PUBLISHING LTD ; BRISTOL ; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/16115]
专题	清华大学
推荐引用方式 GB/T 7714	Li, Xiaoyan,Yang, Wei. Simulating fullerene ball bearings of ultra-low friction[J],2010, 2010.
APA	Li, Xiaoyan,&Yang, Wei.(2010).Simulating fullerene ball bearings of ultra-low friction..
MLA	Li, Xiaoyan,et al."Simulating fullerene ball bearings of ultra-low friction".(2010).

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