Impact of Graphene/Substrate-Interaction on Lubrication within Moiré Heterostructures
文献类型：期刊论文
| 作者 | Shen, Zifu1; Chen, Yongchao1; Han, Guangchao1; Yan, Ruilin1; Wang, Hailong1,2 |
| 刊名 | TRIBOLOGY LETTERS
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 73期号:3页码:14 |
| 关键词 | Moir & eacute Lubrication Graphene/substrate interaction Molecular dynamics Prandtl-Tomlinson model heterostructures |
| ISSN号 | 1023-8883 |
| DOI | 10.1007/s11249-025-02008-w |
| 通讯作者 | Wang, Hailong(hailwang@ustc.edu.cn) |
| 英文摘要 | Understanding and controlling friction is crucial for advancements in nanoscale systems and microelectromechanical devices. Moir & eacute; superlattices formed on graphene-covered metallic substrates present a unique opportunity to modulate frictional behavior. However, the role of graphene/substrate interaction in lubrication within these heterostructures remains inadequately explored. In this study, molecular dynamics simulations combined with theoretical modeling are employed to investigate the impact of graphene-substrate interactions on friction in moir & eacute; heterostructures. The results reveal a nonmonotonic dependence of lateral forces on interaction strength, governed by the competition between graphene wrinkling and elastic energy dynamics. In the weak interaction regime, tip/graphene-adhesion-induced graphene wrinkling enhances friction by increasing pinning atoms. In contrast, strong interactions lead to elastic energy accumulation and relaxation, elevating friction during stick-slip motion. Additional factors, such as normal load, tip size, tip geometry, and tip/graphene interaction, significantly influence frictional behavior. An improved Prandtl-Tomlinson model is developed to validate the findings, demonstrating excellent agreement with simulation results. This work elucidates the mechanisms underlying graphene-substrate-interaction-dependent frictional behavior and offers a framework for tuning tribological properties in two-dimensional materials, enabling the design of advanced MEMS and NEMS with controllable lubrication. |
| WOS关键词 | FRICTION ; GRAPHENE ; SUPERLUBRICITY ; REDUCTION |
| 资助项目 | National Natural Science Foundation of China[12172347] ; National Natural Science Foundation of China[12232016] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001493133100001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101598]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wang, Hailong |
| 作者单位 | 1.Univ Sci & Technol China, Dept Modern Mech, Key Lab Mech Behav & Design Mat, CAS, Hefei 230027, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Zifu,Chen, Yongchao,Han, Guangchao,et al. Impact of Graphene/Substrate-Interaction on Lubrication within Moiré Heterostructures[J]. TRIBOLOGY LETTERS,2025,73(3):14. |
| APA | Shen, Zifu,Chen, Yongchao,Han, Guangchao,Yan, Ruilin,&Wang, Hailong.(2025).Impact of Graphene/Substrate-Interaction on Lubrication within Moiré Heterostructures.TRIBOLOGY LETTERS,73(3),14. |
| MLA | Shen, Zifu,et al."Impact of Graphene/Substrate-Interaction on Lubrication within Moiré Heterostructures".TRIBOLOGY LETTERS 73.3(2025):14. |
入库方式： OAI收割
来源：力学研究所
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