Probing the low-friction mechanism of diamond-like carbon by varying of sliding velocity and vacuum pressure
文献类型：期刊论文
| 作者 | Cui LC(崔龙辰)1,2 ; Lu ZB(鲁志斌)1; Wang LP(王立平)1; Wang LP(王立平)
|
| 刊名 | Carbon
 |
| 出版日期 | 2014 |
| 卷号 | 66页码:259-266 |
| ISSN号 | 0008-6223 |
| 通讯作者 | 王立平 |
| 英文摘要 | The lubrication of diamond-like carbon (DLC) films has commonly been ascribed to two hypotheses, i.e., 'friction-induced graphitization' mechanism and passivation mechanism. To clarify the primary low-friction mechanism of DLC, we investigate the effects of sliding velocity and vacuum pressure on the friction behavior of DLC film. Counterintuitively, examination of wear tracks by Raman spectroscopy reveals that a higher friction coefficient is accompanying with a higher degree of graphitization. We therefore claim that it is the higher friction force that results in the higher degree of graphitization, which subverts the concept of a higher degree of graphitization leading to a lower friction coefficient. Besides, the friction coefficient is found to depend on the ratio of ambient pressure to rotating speed, indicating that the passivation mechanism is at play. Besides, the additional slide-hold-slide test in room air also gives evidence that cannot be understood in terms of the 'friction-induced graphitization' mechanism. |
| 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. 11004203;11172300) |
| 语种 | 英语 |
| WOS记录号 | WOS:000327575200028 |
| 公开日期 | 2014-10-27 |
| 源URL | [http://210.77.64.217/handle/362003/6596]  |
| 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 | Cui LC,Lu ZB,Wang LP,et al. Probing the low-friction mechanism of diamond-like carbon by varying of sliding velocity and vacuum pressure[J]. Carbon,2014,66:259-266. |
| APA | Cui LC,Lu ZB,Wang LP,&王立平.(2014).Probing the low-friction mechanism of diamond-like carbon by varying of sliding velocity and vacuum pressure.Carbon,66,259-266. |
| MLA | Cui LC,et al."Probing the low-friction mechanism of diamond-like carbon by varying of sliding velocity and vacuum pressure".Carbon 66(2014):259-266. |
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。