Friction and wear of rare earths modified carbon fibers filled PTFE composite under dry sliding condition

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	Friction and wear of rare earths modified carbon fibers filled PTFE composite under dry sliding condition
	上官倩芡 ; Cheng XH(程先华)
刊名	Applied Surface Science
	2007
卷号	253 页码:9000-9006
关键词	PTFE composite Carbon fiber Rare earths Friction and wear Surface treatment
ISSN号	0169-4332
通讯作者	程先华
中文摘要	Carbon fibers (CF) were surface treated with air-oxidation and rare earths (RE), respectively. The friction and wear properties of polytetrafluoroethylene (PTFE) composites filled with differently surface treated carbon fibers, sliding against GCr15 steel under dry sliding condition, were investigated on a block-on-ring M-2000 tribometer. Experimental results revealed that RE treatment largely reduced the friction and wear of CF reinforced PTFE (CF/PTFE) composites. The RE treated composite exhibited the lowest friction and wear under dry sliding. Scanning electron microscopy (SEM) investigation of worn surfaces and transfer films of CF/PTFE composites showed that RE treated CF/PTFE composites had the smoothest worn surface under given load and sliding speed, and a continuous and uniform transfer film formed on the counterface. X-ray photoelectron spectroscopy (XPS) study of carbon fiber surface showed that the oxygen concentration was obviously increased after RE treatment, and more carboxyl groups were introduced onto CF surfaces after RE treatment. The increase in the amount of oxygencontaining groups increased the interfacial adhesion between CF and PTFE matrix, and accordingly increased the tribological properties of the composite.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	National Natural Science Foundation of China, Grant No. 50275093
语种	英语
WOS记录号	WOS:000249484100031
公开日期	2013-11-01
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4095]
专题	兰州化学物理研究所_固体润滑国家重点实验室
推荐引用方式 GB/T 7714	上官倩芡,Cheng XH. Friction and wear of rare earths modified carbon fibers filled PTFE composite under dry sliding condition[J]. Applied Surface Science,2007,253:9000-9006.
APA	上官倩芡,&程先华.(2007).Friction and wear of rare earths modified carbon fibers filled PTFE composite under dry sliding condition.Applied Surface Science,253,9000-9006.
MLA	上官倩芡,et al."Friction and wear of rare earths modified carbon fibers filled PTFE composite under dry sliding condition".Applied Surface Science 253(2007):9000-9006.