| Nanostructured WS2-Ni composite films for improved oxidation, resistance and tribological performance | |
| 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; Jiang D(姜栋)1; Zhou F(周峰)1; Liu WM(刘维民)1; Weng LJ(翁立军)1; Liu WM(刘维民); Weng LJ(翁立军)
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| The second department | 先进润滑与防护材料研究发展中心 |
| 2014 | |
| Source Publication | Applied Surface Science
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| ISSN | 0169-4332 |
| Volume | 288Pages:15-25 |
| Abstract | WS2 films were prepared by radio frequency sputtering. In order to improve its mechanical properties and oxidation resistance, Ni was used as the dopant and the effect of Ni content on the microstructure, anti-oxidation capability, mechanical and tribological properties of composite films were studied by energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, grazing incidence X-ray diffraction (GIXRD), high resolution transmission electron microscope(HRTEM), field emission scanning electron microscopy (FESEM), nano-indentation tester, scratch testerand ball-on-disk tribometer. WS2 existed in nanocrystalline 2H–WS2 structure and Ni an amorphous phase. Increasing the Ni content resulted in a microstructural change from columnar platelet structure of pure WS2film to a fiber-like structure of the composite film at low Ni content (5.0 at%), and to a featureless structure at high Ni content (>10 at%). Meanwhile, the films became more and more compact and showed improved anti-oxidation capability. The films represented an increase in hardness with Ni content ranging from 0 to 10.3 at% due to the microstructure being densified, but exhibited high brittleness as the Ni content higher than 10 at%. The composite film at low Ni content of about 5.0 at% showed much better wear resistance than pure WS2 film, but became brittle and had poor wear resistances at high Ni content of above 10.3 at%. The WS2–5.0 at% Ni composite film exhibited the longest wear life of 5.8 × 105 cycles about sevenfold better than that of pure WS2 film in humid air. The wear mechanism was discussed in terms of the anti-oxidation capability of the films, morphology of the wear track and formation of transfer film. |
| Keyword | Ws2 Film Ni Dopant Microstructure Oxidation Resistance Tribology |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.apsusc.2013.09.024 |
| Funding Organization | the National Key Basic Research Program of China (973) (grant no. 2013CB632300) |
| Indexed By | SCI |
| If | 2.711 |
| 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/362003/6828 |
| 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 | Liu WM(刘维民); Weng LJ(翁立军) |
| 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. Nanostructured WS2-Ni composite films for improved oxidation, resistance and tribological performance[J]. Applied Surface Science,2014,288:15-25. |
| APA | Xu SS.,Gao XM.,Hu M.,Sun JY.,Jiang D.,...&翁立军.(2014).Nanostructured WS2-Ni composite films for improved oxidation, resistance and tribological performance.Applied Surface Science,288,15-25. |
| MLA | Xu SS,et al."Nanostructured WS2-Ni composite films for improved oxidation, resistance and tribological performance".Applied Surface Science 288(2014):15-25. |
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| Nanostructured WS2–N（4743KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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