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	Study of lubrication behavior of pure water for hydrophobic friction pair
	Ma ZhiZuo ; Zhang ChenHui ; Liu ShuHai ; Luo JianBin ; Lu XinChun ; Wen ShiZhu
	2010-10-12 ; 2010-10-12
关键词	hydrophobic surface water lubrication friction coefficient PLL-G-PEG BOUNDARY LUBRICATION SILICON-NITRIDE OXIDE SURFACES WEAR RESISTANCE MONOLAYERS CERAMICS DROPLET BRUSH Engineering, Multidisciplinary Materials Science, Multidisciplinary
中文摘要	The perfluorooctyltrichlorosilane molecular layer was self-assembled on glass plate. The tribological properties of the molecular layer in water were studied with the method of ball on disk. An interesting phenomenon was found that low friction coefficients of 0.02-0.08 were obtained when the friction pair was lubricated with only a water droplet. Whereas, when the friction pair was encircled with large amount of water or fully immersed in water, the friction coefficient was higher than that under a droplet lubrication. A mechanism of water droplet lubrication was proposed that the surface tension caused by the solid-liquid-air three-phase interface makes water molecules enter into the contact zone, which separates the two friction surfaces and provides a low friction coefficient. However, water film can hardly form when more water encircles the friction pair, due to the attraction between water molecules.
语种	英语 ; 英语
出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80241]
专题	清华大学
推荐引用方式 GB/T 7714	Ma ZhiZuo,Zhang ChenHui,Liu ShuHai,et al. Study of lubrication behavior of pure water for hydrophobic friction pair[J],2010, 2010.
APA	Ma ZhiZuo,Zhang ChenHui,Liu ShuHai,Luo JianBin,Lu XinChun,&Wen ShiZhu.(2010).Study of lubrication behavior of pure water for hydrophobic friction pair..
MLA	Ma ZhiZuo,et al."Study of lubrication behavior of pure water for hydrophobic friction pair".(2010).

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