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Molecular dynamics simulations of atomic-scale friction in diamond-silver sliding system

  • Articles / Mechanical Engineering
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Chinese Science Bulletin

Abstract

Molecular dynamics simulations have been performed to explore the atomic-scale sliding friction, especially the stick-slip friction, in a system consisting of a diamond slider and a silver substrate. The mechanisms of the stick-slip behavior are investigated by considering sliding speeds between 10 m/s and 200 m/s. The analyses of the shear distance between the upmost layer and the downmost layer and displacements of a column of atoms in the slider show that shearing deformation of the slider is the main cause of the stick-slip phenomenon. Our simulations also present that a commensurate fit between the two contact surfaces is unimportant for the stick-slip friction.

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Authors and Affiliations

  1. State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China

    PengZhe Zhu, YuanZhong Hu & Hui Wang

Authors
  1. PengZhe Zhu
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  2. YuanZhong Hu
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  3. Hui Wang
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Corresponding author

Correspondence to YuanZhong Hu.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 50730007, 50675111 and 50721004) and National Basic Research Program of China (Grant No. 2009CB724200)

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Zhu, P., Hu, Y. & Wang, H. Molecular dynamics simulations of atomic-scale friction in diamond-silver sliding system. Chin. Sci. Bull. 54, 4555–4559 (2009). https://doi.org/10.1007/s11434-009-0579-3

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  • DOI: https://doi.org/10.1007/s11434-009-0579-3

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