Probing the intrinsic failure mechanism of fluorinated amorphous carbon film based on the first-principles calculations | |
Department | 固体润滑国家重点实验室 |
Zhang RH(张仁辉)1,2; Wang LP(王立平)1; Lu ZB(鲁志斌)1; Wang LP(王立平) | |
2015 | |
Source Publication | Scientific Reports |
ISSN | 2045-2322 |
Volume | 5Pages:9419(1-9) |
Abstract | Fluorinated amorphous carbon films exhibit superlow friction under vacuum, but are prone to catastrophic failure. Thus far, the intrinsic failure mechanism remains unclear. A prevailing view is that the failure of amorphous carbon film results from the plastic deformation of substrates or strong adhesion between two contacted surfaces. In this paper, using first-principles and molecular dynamics methodology, combining with compressive stress-strain relation, we firstly demonstrate that the plastic deformation induces graphitization resulting in strong adhesion between two contacted surfaces under vacuum, which directly corresponds to the cause of the failure of the films. In addition, sliding contact experiments are conducted to study tribological properties of iron and fluorinated amorphous carbon surfaces under vacuum. The results show that the failure of the film is directly attributed to strong adhesion resulting from high degree of graphitization of the film, which are consistent with the calculated results. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1038/srep09419 |
Funding Organization | the National Nature Science Foundation of China (Grant 51322508;11172300);the Nature Science Foundation of Gansu Province of China (Grant 145RJDA329) |
Indexed By | SCI |
If | 5.228 |
Language | 英语 |
Funding Project | 低维材料摩擦学组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/7187 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang LP(王立平) |
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 | Zhang RH,Wang LP,Lu ZB,et al. Probing the intrinsic failure mechanism of fluorinated amorphous carbon film based on the first-principles calculations[J]. Scientific Reports,2015,5:9419(1-9). |
APA | Zhang RH,Wang LP,Lu ZB,&王立平.(2015).Probing the intrinsic failure mechanism of fluorinated amorphous carbon film based on the first-principles calculations.Scientific Reports,5,9419(1-9). |
MLA | Zhang RH,et al."Probing the intrinsic failure mechanism of fluorinated amorphous carbon film based on the first-principles calculations".Scientific Reports 5(2015):9419(1-9). |
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srep09419.pdf(1628KB) | 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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