Fluorine and sulfur co-doped amorphous carbon films to achieve ultra-low friction under high vacuum
文献类型:期刊论文
作者 | Wang F(王福)1,2; Wang LP(王立平)1; Xue QJ(薛群基)1; Wang LP(王立平) |
刊名 | Carbon |
出版日期 | 2016 |
卷号 | 96页码:411-420 |
ISSN号 | 0008-6223 |
通讯作者 | 王立平 |
英文摘要 | Fluorine and sulfur co-doped amorphous carbon (a-C:S:F) films were synthesized from C2H2 and SF6 plasma mixture, and the bonding states of S and F in films were scrutinized. The a-C:S:F films exhibited a more ordered carbon structure than hydrogenated films. The friction behavior of films was tested against GCr15 bearing steel balls under high vacuum (HV) conditions. Ultra-low steady-state friction coefficient (0.01–0.02) was achieved for a-C:S:F films containing about 2.0 at.% H, depending on the concentrations of S and F in films. Graphite-like transfer layer on the ball surface provided a low-adhesive sliding surface terminated by –CF2- and –CF3 groups. The electrostatic repulsive interaction between the F-terminated transfer layer and the S- and F-terminated carbon structure was probably responsible for the ultra-low friction behavior. Intriguingly, the sp2-C clusters containing ‘thiophene-S’ (–C–S–C–) structure in films might contribute to the low friction when sliding against an highly fluorinated surface. These results demonstrate that the lubricating properties of a-C films in vacuum can be achieved through the S and F co-doping, which is of great significance for developing a-C films as vacuum lubricants. |
学科主题 | 材料科学与物理化学 |
资助信息 | the State Key Project of Fundamental Research of China (2013 CB 632302);the National Natural Science Foundation of China (Grant No. 51322508) |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000366078000050 |
源URL | [http://210.77.64.217/handle/362003/19140] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Wang LP(王立平) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Wang F,Wang LP,Xue QJ,et al. Fluorine and sulfur co-doped amorphous carbon films to achieve ultra-low friction under high vacuum[J]. Carbon,2016,96:411-420. |
APA | Wang F,Wang LP,Xue QJ,&王立平.(2016).Fluorine and sulfur co-doped amorphous carbon films to achieve ultra-low friction under high vacuum.Carbon,96,411-420. |
MLA | Wang F,et al."Fluorine and sulfur co-doped amorphous carbon films to achieve ultra-low friction under high vacuum".Carbon 96(2016):411-420. |
入库方式: OAI收割
来源:兰州化学物理研究所
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