| Ultralow friction behaviors of hydrogenated fullerene-like carbon films: effect of normal load and surface tribochemistry | |
| Department | 固体润滑国家重点实验室 |
Wang Z(王舟); Wang CB(王成兵); Zhang B(张斌) ; Zhang JY(张俊彦)
| |
| 2011 | |
| Source Publication | Tribology Letters
 |
| ISSN | 1023-8883 |
| Volume | 41Pages:607-615 |
| Abstract | Friction and wear behaviors of hydrogenated fullerene-like (H-FLC) carbon films sliding against Si3N4 ceramic balls were performed at different contact loads from 1 to 20 N on a reciprocating sliding tribometer in air. It was found that the films exhibited non-Amontonian friction behaviors, the coefficient of friction (COF) decreased with normal contact load increasingthe COF was *0.112 at 1 N contact load, and deceased to ultralow value (*0.009) at 20 N load. The main mechanism responsible for low friction and wear under varying contact pressure is governed by hydrogenated carbon transfer film that formed and resided at the sliding interfaces. In addi- tion, the unique fullerene-like structures induce well elastic property of the H-FLC films (elastic recovery 78%), which benefits the high load tolerance and induces the low wear rate in air condition. For the film with an ultralow COF of 0.009 tested under 20 N load in air, time of flight sec- ondary ion mass spectrometry (ToF-SIMS) signals col- lected inside and outside the wear tracks indicated the presence of C2H3 - and C2H5 - fragments after tribological tests on the H-FLC films surface. We think that the tribo- chemistry and elastic property of the H-FLC films is responsible for the observed friction behaviors, the high load tolerance, and chemical inertness of hydrogenated carbon-containing transfer films instead of the graphitization of transfer films is responsible for the steady-state low coefficients of friction, wear, and interfacial shear stress. |
| Keyword | Hydrogenated Fullerene-like Carbon Ultralow Friction Elasticity Tribochemistry |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National Natural Science Foundation of China (Grant nos. 50572108,50975273,50721062,51005110) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 纳米润滑研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/862 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Zhang JY(张俊彦) |
| Recommended Citation GB/T 7714 | Wang Z,Wang CB,Zhang B,et al. Ultralow friction behaviors of hydrogenated fullerene-like carbon films: effect of normal load and surface tribochemistry[J]. Tribology Letters,2011,41:607-615. |
| APA | 王舟,王成兵,张斌,&张俊彦.(2011).Ultralow friction behaviors of hydrogenated fullerene-like carbon films: effect of normal load and surface tribochemistry.Tribology Letters,41,607-615. |
| MLA | 王舟,et al."Ultralow friction behaviors of hydrogenated fullerene-like carbon films: effect of normal load and surface tribochemistry".Tribology Letters 41(2011):607-615. |
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