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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
Source PublicationLUBRICATION SCIENCE
ISSN0954-0075
Volume28Issue:3Pages:141-156
Abstract

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.

KeywordSolid Lubricant Ag-mo Composite Silver Molybdates Tribological Property Thermal Analysis
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/ls.1306
URL查看原文
Indexed BySCI
Language英语
WOS KeywordAdaptive Nanocomposite Coatings ; Yttria-stabilized Zirconia ; Nickel-based Composite ; High-temperature ; Molybdenum-disulfide ; Solid Lubricants ; Wear Behavior ; Oxides ; Silver ; Friction
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical ; Engineering, Mechanical
Funding OrganizationNational Natural Science Foundation of China(51471159)
WOS IDWOS:000371678900002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20657
Collection研究所(批量导入)
Corresponding AuthorZhang, Weigang
Affiliation1.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
Recommended Citation
GB/T 7714
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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