Macro superlubricity of two-dimensional disulphide/amorphous carbon heterogeneous via tribochemistry | |
Qian Jia; Zaixiu Yang; Bin Zhang; Kaixiong Gao; Lei Sun; Junyan Zhang | |
刊名 | Materials Today Nano |
2021-11 | |
期号 | 21页码:100286-100296 |
关键词 | 2D MoS2 Heterogeneous contact Macroscale Ultra-low friction a-C:H film MoS2 film |
英文摘要 | Superlubricity is a revolutionary step for tribology, which will endow mechanical systems with energy saving 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 super lubricity (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 cal culations, the superlubricity be attributed to the formation of incommensurate contact between crys talline and hydrogenated amorphous carbon structures accompanied with extremely weak interfacialinteraction are the immediate root of superlubricity |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.cn/handle/362003/29969] |
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 | Bin Zhang |
作者单位 | 中国科学院兰州化学物理研究所 |
推荐引用方式 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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