Exploring the low-friction mechanism of CNx films in inertatmospheres by first-principles calculations
文献类型：期刊论文
| 作者 | Cui LC(崔龙辰) ; Lu ZB(鲁志斌); Wang LP(王立平)
|
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2015 |
| 卷号 | 356页码:1082-1085 |
| 关键词 | CNx films Friction mechanism Lone-pair Dangling bond First-principles calculation |
| ISSN号 | 0169-4332 |
| 通讯作者 | 王立平 |
| 英文摘要 | Amorphous CNx films show low friction coefficients in inert atmospheres, but the mechanism is still not well understood. Here we find that, by first-principles calculations, the dangling bonds on a diamond (1 1 1) surface are replaced with lone-pairs when nitrogen atoms are doped in the 1st or the 2nd top layer, and an ‘electron transfer passivation mechanism’ is identified. Then, two feasible ways for nitrogen atoms to present in the surface layer during the process of wear are suggested. On the basis of the insights gained, we propose a mechanism that highlights the positive role of the nitrogen lone-pairs in the formation of a weak-interacting interface between the friction-induced ‘graphitized’ layer and the intact below part, which is believed to be the reason for the low-frictions of CNx films in inert atmospheres. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (Grant Nos. 51322508;11172300) |
| 语种 | 英语 |
| 源URL | [http://210.77.64.217/handle/362003/18841]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 作者单位 | State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
| 推荐引用方式 GB/T 7714 | Cui LC,Lu ZB,Wang LP. Exploring the low-friction mechanism of CNx films in inertatmospheres by first-principles calculations[J]. Applied Surface Science,2015,356:1082-1085. |
| APA | Cui LC,Lu ZB,&Wang LP.(2015).Exploring the low-friction mechanism of CNx films in inertatmospheres by first-principles calculations.Applied Surface Science,356,1082-1085. |
| MLA | Cui LC,et al."Exploring the low-friction mechanism of CNx films in inertatmospheres by first-principles calculations".Applied Surface Science 356(2015):1082-1085. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。