Growth and characteristics of self-assembled MoS2/Mo-S-C nanoperiod multilayers for enhanced tribological performance | |
Department | 固体润滑国家重点实验室 |
Xu J(许佼); He TF(贺腾飞); Chai LQ(柴利强); Qiao L(乔丽); Wang P(王鹏); Liu WM(刘维民); Wang P(王鹏) | |
2016 | |
Source Publication | Scientific Reports |
ISSN | 2045-2322 |
Volume | 6Pages:25378(1-10) |
Abstract | Highly ordered MoS2/Mo-S-C nanoperiod multilayers are synthesized by a novel self-assembling mechanism in simultaneous sputtering of MoS2 and graphite targets. The sequential formation of MoS2-riched domain layers and Mo-S-C compositional mixed capping layers reveals no correspondence to the sample stage rotation but is caused by the low energy ion bombardment enhanced interdiffusion. The HRTEM observation shows that the phase segregation normal to the film surface is initiated from substrate-film interlayer with clear contrasts in the first few bi-layers, and then diffuses mutually in a quasiperiodic pattern between two altered sub-layers. Compared with sputtered MoS2 film, the bulk film of multilayers exhibit largely improved toughness under a normal load, and the preferential orientation of sputtered MoS2 in (002) basal planes is significantly enhanced, both of which render the film excellent loads-bearing capacity and lubricant properties. The nano-scratching tests performed on a nanoindentation system suggest that the nano-tribological performance of multilayers is directly determined by the altered structure and properties of neighboring sub-layers until stable tribofilms are formed. Meanwhile, the pin-on-disk tribotests in ambient air, low vacuum and high vacuum provide comparably low friction coefficient yet distinct wear lives in different atmospheres due to the partially restricted humid-sensitivity of sputtered MoS2 phase. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1038/srep25378 |
Indexed By | SCI |
If | 4.259 |
Language | 英语 |
Funding Project | 辐照环境下润滑与防护材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20059 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang P(王鹏) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Xu J,He TF,Chai LQ,et al. Growth and characteristics of self-assembled MoS2/Mo-S-C nanoperiod multilayers for enhanced tribological performance[J]. Scientific Reports,2016,6:25378(1-10). |
APA | Xu J.,He TF.,Chai LQ.,Qiao L.,Wang P.,...&王鹏.(2016).Growth and characteristics of self-assembled MoS2/Mo-S-C nanoperiod multilayers for enhanced tribological performance.Scientific Reports,6,25378(1-10). |
MLA | Xu J,et al."Growth and characteristics of self-assembled MoS2/Mo-S-C nanoperiod multilayers for enhanced tribological performance".Scientific Reports 6(2016):25378(1-10). |
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srep25378.pdf(2838KB) | 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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