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Macro superlubricity of two-dimensional disulphide/amorphous carbon heterogeneous via tribochemistry
Department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
Qian Jia; Zaixiu Yang; Bin Zhang; Kaixiong Gao; Lei Sun; Junyan Zhang
The second department607组
2021-11
Source PublicationMaterials Today Nano
Issue21Pages:100286-100296
Abstract

Superlubricity is a revolutionary step for tribology, which will endow mechanical systems with energysaving and long-life servicing. However, it is challenging to realize structural superlubricity and reveal its mechanism under mm-scale on steel. Here, we proposed a new strategy to realize macroscale superlubricity (friction coefficient low to 0.003) by sliding amorphous MoS2 (WS2) against hydrogenated amorphous carbon films. Due to tribo-chemistry induced by friction heating and shear force, the amorphous MoS2 was transformed into two-dimensional crystal MoS2, where the layers were flat without wrinkles. Thus, macroscale (submillimeter range) crystalline/amorphous heterogeneous were formed where friction occurs. Based on the nanoscale analyses and the density functional theory calculations, the superlubricity be attributed to the formation of incommensurate contact between crystalline and hydrogenated amorphous carbon structures accompanied with extremely weak interfacialinteraction are the immediate root of superlubricity

Keyword2D MoS2 Heterogeneous contact Macroscale Ultra-low friction a-C:H film MoS2 film
If13.3644
Language英语
compositor第一作者单位
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/29969
Collection固体润滑国家重点实验室(LSL)
Corresponding AuthorBin Zhang
Affiliation中国科学院兰州化学物理研究所
Corresponding Author AffilicationLanzhou Institute of Chemical Physics,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian Jia,Zaixiu Yang,Bin Zhang,et al. Macro superlubricity of two-dimensional disulphide/amorphous carbon heterogeneous via tribochemistry[J]. Materials Today Nano,2021(21):100286-100296.
APA Qian Jia,Zaixiu Yang,Bin Zhang,Kaixiong Gao,Lei Sun,&Junyan Zhang.(2021).Macro superlubricity of two-dimensional disulphide/amorphous carbon heterogeneous via tribochemistry.Materials Today Nano(21),100286-100296.
MLA Qian Jia,et al."Macro superlubricity of two-dimensional disulphide/amorphous carbon heterogeneous via tribochemistry".Materials Today Nano .21(2021):100286-100296.
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