Insight into superlubricity via synergistic effects of ammonium tetrathiomolybdate and hydrogenated amorphous carbon film | |
Department | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Sun Lei; Lai Zhenguo; Zhang Bin | |
The second department | 纳米润滑中心607 |
2022 | |
Source Publication | Applied Surface Science |
Volume | 597Issue:9Pages:153675-153685 |
Abstract | In the past decade, significant breakthroughs have been made in uncovering the superlubricity mechanism and in developing superlubric materials. However, most works have concentrated on nanoscale two-dimensional (2D) nanomaterials, which are still a challenge for industrial scale-up. Meanwhile, although some hydrogenated amorphous carbon (a-C:H) films show superlubricty, how to break through the components and restrict the nanostructure is in the struggle because commercial a-C:H films with a friction coefficient beyond 0.05 are far from superlubricity (<0.01). To address these problems, we used ammonium tetrathiomolybdate (ATTM) as an additive to synergize with an a-C:H film to realize superlubricity on a 9Cr18Mo steel surface in argon and nitrogen atmospheres. Thanks to the flash heating and shear force during friction, the ATTM can be decovoluted into molybdenum disulfide (MoS2) and sulfur monomer (S8), which are naturally irrational in lattice parameters, i.e., incommensurate contact between MoS2 and S8 is the key to superlubricity. A comparative study shows that a-C:H here not only helps to anchor ATTM to inhibit easy slip at the beginning but also plays an anti-wear role for 9Cr18Mo steel in superlubricious states. Our work opens a new notion to scale up structure superlubricity for industrial application. |
Keyword | Superlubricity Hydrogenated amorphous carbon Ammonium tetrathiomolybdate Molybdenum disulfide Sulfur monomer |
If | 6.7 |
Language | 英语 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/30510 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Corresponding Author | Sun Lei |
Affiliation | State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics |
Recommended Citation GB/T 7714 | Sun Lei,Lai Zhenguo,Zhang Bin. Insight into superlubricity via synergistic effects of ammonium tetrathiomolybdate and hydrogenated amorphous carbon film[J]. Applied Surface Science,2022,597(9):153675-153685. |
APA | Sun Lei,Lai Zhenguo,&Zhang Bin.(2022).Insight into superlubricity via synergistic effects of ammonium tetrathiomolybdate and hydrogenated amorphous carbon film.Applied Surface Science,597(9),153675-153685. |
MLA | Sun Lei,et al."Insight into superlubricity via synergistic effects of ammonium tetrathiomolybdate and hydrogenated amorphous carbon film".Applied Surface Science 597.9(2022):153675-153685. |
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Insight into superlu(15953KB) | 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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