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Improving the Wear Life of a-C:H Film in High Vacuum by Self-Assembled Reduced Graphene Oxide Layers

by Hui Song 1, Gang Chen 2, Jie Chen 2,*, Hongxuan Li 3, Li Ji 3 and Nan Jiang 1,*
1
Key Laboratory of Marine Materials and Related Technologies, CAS, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
2
Inner Mongolia Metallic Materials Research Institute, Ningbo 315103, China
3
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(12), 1733; https://doi.org/10.3390/nano9121733
Received: 17 November 2019 / Revised: 28 November 2019 / Accepted: 3 December 2019 / Published: 5 December 2019
(This article belongs to the Section Nanocomposite Thin Films and 2D Materials)
As an energy-efficient surface modification method, self-assembly has been the subject of extensive research. However, its application on carbon film has been rarely reported. In the present work, a novel self-assembled reduced graphene oxide (RGO) was prepared on a-C:H film by a controllable self-assembly method, and the friction behavior of the RGO/a-C:H film was investigated under vacuum environment. Interestingly, the RGO/a-C:H film exhibited significant improvement of anti-wear ability in vacuum conditions under a high applied load of 5 N. As expected, the synergy lubrication effect of the RGO layer and a-C:H film should account for the excellent friction reduction and anti-wear ability of a RGO/a-C:H multilayer film. View Full-Text
Keywords: self-assembly; reduced graphene oxide; a-C:H film; wear; vacuum; carbon materials self-assembly; reduced graphene oxide; a-C:H film; wear; vacuum; carbon materials
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Song, H.; Chen, G.; Chen, J.; Li, H.; Ji, L.; Jiang, N. Improving the Wear Life of a-C:H Film in High Vacuum by Self-Assembled Reduced Graphene Oxide Layers. Nanomaterials 2019, 9, 1733.

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