Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive
	Zhang CL(张春丽)1; Zhang SM(张晟卯)1,2; Yu LG(余来贵)1; Zhang ZJ(张志军)1; Wu ZS(吴志申)1; Zhang PY(张平余)1
刊名	Applied Surface Science
	2012
卷号	259 页码:824-830
关键词	Copper nanoparticles Cu/SiO2 nanocomposite Lubricant additive Preparation Tribological properties
ISSN号	0169-4332
通讯作者	吴志申 ; 张平余
英文摘要	Cu/SiO₂ nanocomposite was synthesized by sol–gel method. The size, morphology and phase structure of as-prepared Cu/SiO₂ nanocomposite were analyzed by means of X-ray diffraction and transmission electron microscopy, and its ultraviolet-visible light spectrum was measured in relation to surface plasmon excitation of Cu particles. The tribological properties of as-synthesized Cu/SiO₂ nanocomposite as an additive in distilled water were investigated with a four-ball machine, and the morphology and elemental composition of worn steel surfaces were examined with a scanning electron microscope and an X-ray photoelectron spectroscope. Results show that as-synthesized Cu/SiO₂ nanocomposite as a lubricant additive is able to significantly improve the tribological properties of distilled water. A protective and lubricious film composed of Cu and a small amount of FeS, FeSO₄ and SiO₂ is formed on steel sliding surfaces lubricated by distilled water containing Cu/SiO₂ nanocomposite. During friction process Cu nanoparticles can be released from Cu/SiO₂ nanocomposite to fill up micro-pits and grooves of steel sliding surfaces, resulting in greatly reduced friction and wear of steel frictional pair via self-repairing. The state and thickness of the film formed on the worn surface is closely related to applied load; and Cu/SiO₂ nanocomposite might be a promising water-based lubricant additive for steel-steel contact subjected to moderate load.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (Grant nos. 50975077;21171143);State Key Laboratory of Solid Lubrication Fund (1003)
语种	英语
WOS记录号	WOS:000310436900124
公开日期	2013-07-12
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/3306]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Henan Univ, Key Lab, Minist Educ Special Funct Mat, Kaifeng 475004, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang CL,Zhang SM,Yu LG,et al. Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive[J]. Applied Surface Science,2012,259:824-830.
APA	Zhang CL,Zhang SM,Yu LG,Zhang ZJ,Wu ZS,&Zhang PY.(2012).Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive.Applied Surface Science,259,824-830.
MLA	Zhang CL,et al."Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive".Applied Surface Science 259(2012):824-830.