Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations
文献类型：期刊论文
| 作者 | Huo, Lei; Wang, Shunhua; Pu, Jibin; Sun, Junhui; Lu, Zhibin; Ju, Pengfei; Wang, Liping |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 436页码:893-899 |
| 关键词 | Oxygen Hydrogen Behavior |
| 英文摘要 | The friction behavior and the mechanism of DLC films in CO2 atmosphere are rarely explored, which is a significant obstacle for the potential practical application of DLC films in primarily CO2 environment. Here, the experiments and first-principles calculations are performed to simultaneously investigate this theme. We find that DLC films in CO2 atmosphere exhibit astoundingly low friction coefficient compared with in ambient air and vacuum atmospheres. The XPS and Raman spectrums demonstrate the possibly activation of CO2 molecule in the shearing interfaces, which may be critical for the low friction of DLC films in CO2 atmosphere. The calculated results reveal that the lactone groups can easily form during the horizontally chemisorption of CO2 molecule on the DLC surface, which is energetic and is a favorable process under the interfacial stress. Because of the presence of the lone-pairs of the lactone group, the lactone-terminated surfaces appear to be responsible for the low friction of DLC films in CO2 atmosphere. The studies may open up the possibility for DLC films usage in Mars applications. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16732]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Huo, Lei,Wang, Shunhua,Pu, Jibin,et al. Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations[J]. APPLIED SURFACE SCIENCE,2018,436:893-899. |
| APA | Huo, Lei.,Wang, Shunhua.,Pu, Jibin.,Sun, Junhui.,Lu, Zhibin.,...&Wang, Liping.(2018).Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations.APPLIED SURFACE SCIENCE,436,893-899. |
| MLA | Huo, Lei,et al."Exploring the low friction of diamond-like carbon films in carbon dioxide atmosphere by experiments and first-principles calculations".APPLIED SURFACE SCIENCE 436(2018):893-899. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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