Wear resistance of superior structural WS2-Sb2O3/Cu nanoscale multilayer film | |
Department | 固体润滑国家重点实验室 |
Xu SS(徐书生); Zheng JY(郑建云); Hao JY(郝俊英); Kong LG(孔良桂); Liu WM(刘维民); Hao JY(郝俊英); Liu WM(刘维民) | |
2016 | |
Source Publication | Materials & design |
ISSN | 0264-1275 |
Volume | 93Pages:494-502 |
Abstract | Transition metal dichalcogenides (TMDs) with layered structure exhibit very low friction coefficient but poor wear resistance in vacuum environments. To develop high wear resistance of WS2 film, its nanostructure was optimized by co-introducing of Sb2O3 dopant and Cu sublayer using sputtering technique. Effects of co-doping on film nano/microstructure, mechanical and tribological performance were investigated by GIXRD, FESEM, HRTEM, nano-indentation tester, AFM, 3D non-contact surface mapping profiler, scratch tester and vacuum ball-on-disk tribometer. The results showed that the growth of WS2 columnar platelets could be restricted by co-introducing of Sb2O3 dopant and thin Cu sublayer (about 1.6 nm), but not single-doping of even 10.0 at.% Sb2O3, leading to formation of amorphous WS2 phase. As compared to the loose WS2–Sb2O3 and pure WS2 films, the dense multilayer films possessed high hardness and high H3/E2, and those maximum values were 6.3 GPa and 2.7 × 10− 2 GPa, respectively. The doping 10.0 at.% Sb2O3 could double the film wear life to 2.7 × 105 cycles in vacuum under high Hertzian contact pressure (about 1.0 GPa), and further introduction of Cu sublayer would make the multilayer film much longer wear life about to 1.1 × 106 cycles. Wear mechanisms were discussed in terms of wear track morphology after different sliding cycles. |
Keyword | Ws2 Based Film Sb2o3 Doping Cu Sublayer Nanostructure Wear Resistance |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.matdes.2016.01.006 |
Funding Organization | the National Key Basic Research Program of China (973) (Grant no. 2013CB632300);National Natural Science Foundation of China (Grant nos. 51505465;51375471) |
Indexed By | SCI |
If | 4.364 |
Language | 英语 |
Funding Project | 空间润滑材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19151 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Hao JY(郝俊英); Liu WM(刘维民) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Xu SS,Zheng JY,Hao JY,et al. Wear resistance of superior structural WS2-Sb2O3/Cu nanoscale multilayer film[J]. Materials & design,2016,93:494-502. |
APA | Xu SS.,Zheng JY.,Hao JY.,Kong LG.,Liu WM.,...&刘维民.(2016).Wear resistance of superior structural WS2-Sb2O3/Cu nanoscale multilayer film.Materials & design,93,494-502. |
MLA | Xu SS,et al."Wear resistance of superior structural WS2-Sb2O3/Cu nanoscale multilayer film".Materials & design 93(2016):494-502. |
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