In situ formation of spherical MoS2 nanoparticles for ultra-low friction | |
Department | 固体润滑国家重点实验室 |
Kaiming,Hou1; Minmin,Han1; Xiaohong,Liu1; Jinqing,Wang1; Yezeng,He2; Shengrong,Yang1 | |
2018-10-12 | |
Source Publication | Nanoscale |
Issue | 10Pages:19979-19986 |
Abstract | The motion resistance and energy dissipation of rolling friction are much lower than those of sliding friction at the macroscale. But at the microscale, the impact of rolling on friction remains an open question. Here, we show that spherical MoS2 nanoparticles can be formed in situ at a friction interface by scrolling and wrapping MoS2 nanosheets under the induction of a reciprocating shear stress, when an MoS2 coating constructed from loosely stacked nanosheets is tested in a vacuum of 3.5 × 10−3 Pa. An ultra-low friction state can be readily realized with friction coefficients of 0.004–0.006, which are one order of magnitude lower than that of a pulse laser deposited MoS2 coating without nanoparticles formed in a friction process. Accordingly, the spherical nanoparticles are highlighted as the key factor in the ultra-low friction. Classical molecular dynamics simulations further reveal that the motion mode of the MoS2 nanoparticle is stress-dependent. This finding confirms access to ultra-low friction by introducing rolling friction based on the microstructural evolution of the coating. |
MOST Discipline Catalogue | 工学::材料科学与工程(可授工学、理学学位) |
DOI | 10.1039/C8NR06503A |
Indexed By | SCI |
If | 7.233 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24396 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Jinqing,Wang; Yezeng,He; Shengrong,Yang |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 2.School of Materials Science and Engineering, China University of Mining and Technology |
Recommended Citation GB/T 7714 | Kaiming,Hou,Minmin,Han,Xiaohong,Liu,et al. In situ formation of spherical MoS2 nanoparticles for ultra-low friction[J]. Nanoscale,2018(10):19979-19986. |
APA | Kaiming,Hou,Minmin,Han,Xiaohong,Liu,Jinqing,Wang,Yezeng,He,&Shengrong,Yang.(2018).In situ formation of spherical MoS2 nanoparticles for ultra-low friction.Nanoscale(10),19979-19986. |
MLA | Kaiming,Hou,et al."In situ formation of spherical MoS2 nanoparticles for ultra-low friction".Nanoscale .10(2018):19979-19986. |
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6Nanoscale, 2018, 10(3965KB) | 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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