中国物理B ›› 2024, Vol. 33 ›› Issue (8): 86103-086103.doi: 10.1088/1674-1056/ad531e

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Effect of interlayer bonded bilayer graphene on friction

Yao-Long Li(李耀隆)1,2, Zhen-Guo Tian(田振国)1,2, Hai-Feng Yin(尹海峰)1,2, and Ren-Liang Zhang(张任良)1,2,†   

  1. 1 Hebei Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures, Yanshan University, Qinhuangdao 066004, China;
    2 School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
  • 收稿日期:2024-03-11 修回日期:2024-05-09 出版日期:2024-08-15 发布日期:2024-07-23
  • 通讯作者: Ren-Liang Zhang E-mail:zhrleo@ysu.edu.cn
  • 基金资助:
    The project supported by the Doctor Fund and the Program of independent Research for Young Teachers of Yanshan University (Grant Nos. B919 and 020000534).

Effect of interlayer bonded bilayer graphene on friction

Yao-Long Li(李耀隆)1,2, Zhen-Guo Tian(田振国)1,2, Hai-Feng Yin(尹海峰)1,2, and Ren-Liang Zhang(张任良)1,2,†   

  1. 1 Hebei Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures, Yanshan University, Qinhuangdao 066004, China;
    2 School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China
  • Received:2024-03-11 Revised:2024-05-09 Online:2024-08-15 Published:2024-07-23
  • Contact: Ren-Liang Zhang E-mail:zhrleo@ysu.edu.cn
  • Supported by:
    The project supported by the Doctor Fund and the Program of independent Research for Young Teachers of Yanshan University (Grant Nos. B919 and 020000534).

摘要: We study the friction properties of interlayer bonded bilayer graphene by simulating the movement of a slider on the surface of bilayer graphene using molecular dynamics. The results show that the presence of the interlayer covalent bonds due to the local sp$^{3}$ hybridization of carbon atoms in the bilayer graphene seriously reduces the frictional coefficient of the bilayer graphene surface to 30%, depending on the coverage of interlayer sp$^{3}$ bonds and normal loads. For a certain coverage of interlayer sp$^{3}$ bonds, when the normal load of the slider reaches a certain value, the surface of this interlayer bonded bilayer graphene will lose the friction reduction effect on the slider. Our findings provide guidance for the regulation and manipulation of the frictional properties of bilayer graphene surfaces through interlayer covalent bonds, which may be useful for applications of friction related graphene based nanodevices.

关键词: nanoscale friction, molecular dynamic simulation, bilayer graphene, interlayer covalent bond

Abstract: We study the friction properties of interlayer bonded bilayer graphene by simulating the movement of a slider on the surface of bilayer graphene using molecular dynamics. The results show that the presence of the interlayer covalent bonds due to the local sp$^{3}$ hybridization of carbon atoms in the bilayer graphene seriously reduces the frictional coefficient of the bilayer graphene surface to 30%, depending on the coverage of interlayer sp$^{3}$ bonds and normal loads. For a certain coverage of interlayer sp$^{3}$ bonds, when the normal load of the slider reaches a certain value, the surface of this interlayer bonded bilayer graphene will lose the friction reduction effect on the slider. Our findings provide guidance for the regulation and manipulation of the frictional properties of bilayer graphene surfaces through interlayer covalent bonds, which may be useful for applications of friction related graphene based nanodevices.

Key words: nanoscale friction, molecular dynamic simulation, bilayer graphene, interlayer covalent bond

中图分类号:  (Structure of graphene)

  • 61.48.Gh
62.20.Qp (Friction, tribology, and hardness) 31.15.xv (Molecular dynamics and other numerical methods)