Pencil sketch graphene films as solid lubricant on steel surface: Observation of transition to grapehene/amorphous carbon | |
Department | 先进润滑与防护材料研究发展中心 |
Zhang B(张斌)1,2; Xue Y(薛勇)1,3; Gao KX(高凯雄)1,4; Qiang L(强力)1,4; Yu YL(于元烈)1; Gong ZB(龚珍彬)1,4; Liang AM(梁爱民)1; Zhang JY(张俊彦)1; Yang BP(杨保平)3; Zhang B(张斌) | |
The second department | 固体润滑国家重点实验室 |
2018 | |
Source Publication | Solid State Sciences |
ISSN | 1293-2558 |
Volume | 75Issue:0Pages:71-76 |
Abstract | During recent years, graphene as a solid lubrication material have been thoroughly studied under nano or micro scales, but rarely reported at industrial conditions. In present work, graphene films as solid lubricant were prepared on the surface of 201 stainless steel substrates by pencil sketch. And then the friction tests from 5 to 65 N were carried out via a homemade tribo-tester and used GCr15 balls (ø = 5 mm) as friction pairs. Not surprisingly, graphene films cannot bear the loads beyond 5 N, but interestingly, via gradually increasing the loads, graphene films show prominent load performance and steady state of friction coefficients at about 0.12 while the loads varied from 5 to 65 N. Compared with bare steel, the coefficient of graphene films reduced by about 80%, and the wear volume reduced to 1/28 when variable load (from 5 N to 30 N) were applied. Raman spectra shown that the structure of grapheme had been changing into diamond-like carbon films with graphene distributed inside, which was confirmed by HRTEM that graphenes were coming with amorphous carbon. Considering the roughness of steel wafers (170 nm), one can speculate that, with graphene films' protection, the steel has no abrasion but plastic deformation instead. It is concluded that the shearing force induced the film densification via sp2 to sp3 changing that enforced cross-linking. This cross-linking carbon matrix was responsible for high load bearing and the graphene exfoliated into graphene under shearing force contribute to low steady-state friction. Benefiting from sketch, one can get a lubrication film on any substrates with complex topography, our results shed light on the growth of graphene films for industrial use. |
Keyword | Graphene Amorphous Carbon Lubricant Low Friction Low Wear |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.solidstatesciences.2017.10.005 |
Funding Organization | CAS “Light of West China” Program ; Youth Innovation Promotion Association CAS (Grant No. 2017459) ; the China Scholarship Council (Grant No. 201604910183) ; the Natural Science Foundation of Gansu Province, China (Grant No. 1501RJZA012) ; the National Natural Science Foundation of China (Grant No. 51205383 ; 51611530704 ; 51661135022) |
Indexed By | SCI |
If | 1.861 |
Language | 英语 |
Funding Project | 纳米润滑研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22820 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhang B(张斌) |
Affiliation | 1.R&D Center of Lubricating and Protecting Materials, Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA 3.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, PR China 4.University of Chinese Academy of Sciences, Beijing 100049, PR China |
Recommended Citation GB/T 7714 | Zhang B,Xue Y,Gao KX,et al. Pencil sketch graphene films as solid lubricant on steel surface: Observation of transition to grapehene/amorphous carbon[J]. Solid State Sciences,2018,75(0):71-76. |
APA | Zhang B.,Xue Y.,Gao KX.,Qiang L.,Yu YL.,...&Zhang B.(2018).Pencil sketch graphene films as solid lubricant on steel surface: Observation of transition to grapehene/amorphous carbon.Solid State Sciences,75(0),71-76. |
MLA | Zhang B,et al."Pencil sketch graphene films as solid lubricant on steel surface: Observation of transition to grapehene/amorphous carbon".Solid State Sciences 75.0(2018):71-76. |
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Pencil sketch graphe(2202KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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