Mechanism of contact pressure-induced friction at the amorphous carbon/alpha olefin interface
文献类型：期刊论文
| 作者 | Li, Xiaowei; Wang, Aiying; Lee, Kwang-Ryeol |
| 刊名 | NPJ COMPUTATIONAL MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 4 |
| 关键词 | Diamond-like Carbon Molecular-dynamics Biomedical Applications Boundary Lubrication Sliding Velocity Dlc Coatings Ta-c Films Zddp Glycerol |
| 英文摘要 | Combining an amorphous carbon (a-C) film with a lubricating oil can significantly improve the friction performance and lifetime of moving mechanical components. However, the friction mechanism is not well understood owing to a lack of information regarding the structure of the interface when exposed to high contact pressure. Here, we select linear alpha olefin, C5H10, as a lubricant and study the evolution of the structure of the a-C/C5H10/a-C sliding interface under contact pressure via reactive molecular dynamics simulation. Our results suggest that introducing C5H10 into the a-C/a-C interface reduces the friction coefficient by up to 93% compared with no lubricant, although the lubricating efficiency strongly depends on the contact pressure. In particular, increasing the contact pressure not only induces the binding of the lubricant with a-C, but also facilitates the dissociation of the C5H10 carboncarbon skeleton by specific scissions, which governs the friction behavior. These results disclose the underlying lubrication mechanism and could enable the development of new and effective lubricating systems with long lifetimes. |
| 学科主题 | Polymer Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17186]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Li, Xiaowei,Wang, Aiying,Lee, Kwang-Ryeol. Mechanism of contact pressure-induced friction at the amorphous carbon/alpha olefin interface[J]. NPJ COMPUTATIONAL MATERIALS,2018,4. |
| APA | Li, Xiaowei,Wang, Aiying,&Lee, Kwang-Ryeol.(2018).Mechanism of contact pressure-induced friction at the amorphous carbon/alpha olefin interface.NPJ COMPUTATIONAL MATERIALS,4. |
| MLA | Li, Xiaowei,et al."Mechanism of contact pressure-induced friction at the amorphous carbon/alpha olefin interface".NPJ COMPUTATIONAL MATERIALS 4(2018). |
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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