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Tribological properties and lubrication mechanisms of a Ag-Mo composite
Zhang, Tiantian1,2; Huang, Chuanbing1; Lan, Hao1; Du, Lingzhong1; Zhang, Weigang1
2016-04-01
发表期刊LUBRICATION SCIENCE
ISSN0954-0075
卷号28期号:3页码:141-156
摘要

A composite material containing silver and molybdenum metals was fabricated by powder metallurgy method with a Ag/Mo molar ratio of 2:1 and the sintering temperature is 700 degrees C. Tribological properties, especially the solid lubrication behaviours during oxidation of the composite in air, were considered from room temperature to 600 degrees C. Phase composition, microstructure and thermal behaviour of the composite were analysed before and after tests to investigate the lubrication mechanisms. The friction coefficients of the composite are similar to 0.7 below 400 degrees C but decrease sharply to similar to 0.18 above 500 degrees C. Characterisations of this composite indicate that several silver molybdates (Ag2MoO4, Ag2Mo2O7 and Ag2Mo4O13) formed from oxidation of Ag-Mo composite at high temperatures benefit lubrication effects and lead to the decrease of friction coefficients. Formation mechanism of these silver molybdates during oxidation and wear was therefore studied, and a model based on solid reaction processes in the Ag-Mo-O-2 system was promoted. Copyright (c) 2015 John Wiley & Sons, Ltd.

关键词Solid Lubricant Ag-mo Composite Silver Molybdates Tribological Property Thermal Analysis
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1002/ls.1306
URL查看原文
收录类别SCI
语种英语
关键词[WOS]Adaptive Nanocomposite Coatings ; Yttria-stabilized Zirconia ; Nickel-based Composite ; High-temperature ; Molybdenum-disulfide ; Solid Lubricants ; Wear Behavior ; Oxides ; Silver ; Friction
WOS研究方向Engineering
WOS类目Engineering, Chemical ; Engineering, Mechanical
项目资助者National Natural Science Foundation of China(51471159)
WOS记录号WOS:000371678900002
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20657
专题研究所(批量导入)
通讯作者Zhang, Weigang
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, 1 Bei Er Tiao, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Zhang, Tiantian,Huang, Chuanbing,Lan, Hao,et al. Tribological properties and lubrication mechanisms of a Ag-Mo composite[J]. LUBRICATION SCIENCE,2016,28(3):141-156.
APA Zhang, Tiantian,Huang, Chuanbing,Lan, Hao,Du, Lingzhong,&Zhang, Weigang.(2016).Tribological properties and lubrication mechanisms of a Ag-Mo composite.LUBRICATION SCIENCE,28(3),141-156.
MLA Zhang, Tiantian,et al."Tribological properties and lubrication mechanisms of a Ag-Mo composite".LUBRICATION SCIENCE 28.3(2016):141-156.
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