Morphology evolution of Ag alloyed WS2 films and the significantly enhanced mechanical and tribological properties | |
Department | 固体润滑国家重点实验室 |
Xu SS(徐书生)1,2; Gao XM(高晓明)1; Hu M(胡明)1; Sun JY(孙嘉奕)1; Wang DS(王德生)1; Zhou F(周峰)1; Weng LJ(翁立军)1; Liu WM(刘维民)1; Weng LJ(翁立军); Liu WM(刘维民) | |
The second department | 先进润滑与防护材料研究发展中心 |
2014 | |
Source Publication | Surface and Coatings Technology |
ISSN | 0257-8972 |
Volume | 238Pages:197-206 |
Abstract | The WS2–Ag composite films were prepared by radio frequency co-sputtering method. The effects of alloying Ag content on composition, microstructure, mechanical properties and friction behaviors have been analyzed by X-ray photoelectron spectroscopy (XPS), grazing incidence X-ray diffraction (GIXRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS) and high resolution transmission electron microscope (HRTEM), scratch tester, nano-indentation tester and ball-on-disk tribo-tester. The Ag addition was in present of nanocrystalline phase in the boundary of the crystalline WS2 matrix and induced morphology change, but could not completely prevent the columnar platelets. The columnar platelet was composed of a great deal of nanocrystalline and a small amount of amorphous WS2 phase. There were no substantial variations in the hardness of the composite films when the Ag content was in the range of 0–20.3 at.%. The suitable amount of Ag content was benefited for improving the film adhesive strength and wear resistance both in vacuum and humid air environment. Particularly, the composite film with 9.0 at.% Ag exhibited the longest wear life (about 7.6 × 105 cycles in vacuum, 6.7 × 105 cycles in humid air) under high Hertzian contact pressure (as high as 1.0 GPa). Thewearmechanismwas discussed in terms of the rearrangement ofwear track and formation of transfer film. |
Keyword | Ws2 Film Ag Addition Microstructure Tribological Properties |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.surfcoat.2013.10.074 |
Funding Organization | the National Key Basic Research Program of China (973) (Grant No. 2013CB632300);National Natural Science Foundation of China (Grant No. 51305427) |
Indexed By | SCI |
If | 1.998 |
Language | 英语 |
Funding Project | 空间润滑材料组;PVD润滑薄膜组;材料表面与界面行为研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6831 |
Collection | 固体润滑国家重点实验室(LSL) 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Corresponding Author | Weng LJ(翁立军); Liu WM(刘维民) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Xu SS,Gao XM,Hu M,et al. Morphology evolution of Ag alloyed WS2 films and the significantly enhanced mechanical and tribological properties[J]. Surface and Coatings Technology,2014,238:197-206. |
APA | Xu SS.,Gao XM.,Hu M.,Sun JY.,Wang DS.,...&刘维民.(2014).Morphology evolution of Ag alloyed WS2 films and the significantly enhanced mechanical and tribological properties.Surface and Coatings Technology,238,197-206. |
MLA | Xu SS,et al."Morphology evolution of Ag alloyed WS2 films and the significantly enhanced mechanical and tribological properties".Surface and Coatings Technology 238(2014):197-206. |
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