Study of Friction between Liquid Crystals and Crystalline Surfaces by Molecular Dynamic Simulations

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	Study of Friction between Liquid Crystals and Crystalline Surfaces by Molecular Dynamic Simulations
	Zhang, YW ; Chen, XS; Chen, W 2
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2016
卷号	66 期号:4 页码:467-473
关键词	liquid crystal ULTRALOW FRICTION friction MESOGENIC FLUID slip length BEHAVIOR molecular dynamics simulation WATER
英文摘要	The lubrication characteristics of liquid crystal (LC) molecules sheared between two crystalline surfaces obtained from molecular dynamics (MD) simulations are reported in this article. We consider a coarse-grained rigid bead-necklace model of the LC molecules confined between two atomic surfaces subject to different shearing velocities. A systematic study shows that the slip length of LC lubrication changes significantly as a function of the LC-surface interaction energy, which can be well described though a theoretical curve. The slip length increases as shear rate increases at high LC-surface interaction energy. However, this trend can not be observed for low interaction energy. The orientation of the LC molecules near the surface is found to be guided by the atomics surfaces. The influence of temperature on the lubrication characteristics is also discussed in this article.
学科主题	Physics
语种	英语
资助机构	National Natural Science Foundation of China [11504384, 11121403]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23337]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Comp Network Informat Ctr, POB 349, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YW,Chen, XS,Chen, W. Study of Friction between Liquid Crystals and Crystalline Surfaces by Molecular Dynamic Simulations[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2016,66(4):467-473.
APA	Zhang, YW,Chen, XS,&Chen, W.(2016).Study of Friction between Liquid Crystals and Crystalline Surfaces by Molecular Dynamic Simulations.COMMUNICATIONS IN THEORETICAL PHYSICS,66(4),467-473.
MLA	Zhang, YW,et al."Study of Friction between Liquid Crystals and Crystalline Surfaces by Molecular Dynamic Simulations".COMMUNICATIONS IN THEORETICAL PHYSICS 66.4(2016):467-473.