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Nanotribological behaviors of in situ nanoparticles doped molecular deposition films

  • Articles / Mechanical Engineering
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Chinese Science Bulletin

Abstract

The molecular deposition films of poly (diallyl dimethylammonium chloride) (PDDA) and poly (acrylicacid) (PAA) with Cu2+ on quartz and glass substrates were prepared in laboratory first, then different bilayers films were dipped into fresh Na2S aqueous solution. As a result, CuS nanoparticles were fabricated in multilayer molecular deposition films in situ. The structure and nanotribological properties of the composite films were analyzed by ultraviolet-visible (UV-visible) spectroscopy, XPS and atomic force microscope (AFM). It was found that the CuS nanoparticles were homogeneously distributed throughout the whole film. And these films had a much smaller friction force than their substrates and higher antiwear life than pristine PDDA/PAA molecular deposition films. The fluctuation and variation trend of the topography, hardness, and friction with the AFM indentation length were also investigated.

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Authors and Affiliations

  1. School of Mechanical and Electronic Engineering, China University of Petroleum, Beijing, 102249, China

    YanBao Guo, DeGuo Wang & SiWei Zhang

Authors
  1. YanBao Guo
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  2. DeGuo Wang
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  3. SiWei Zhang
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Corresponding author

Correspondence to DeGuo Wang.

Additional information

Supported by the National Natural Science Foundation of China (Grant No. 50575151), National Basic Research Program of China (Grant No. 2007CB607604), and Opening Fund of the State Key Laboratory of Tribology at Tsinghua University (Grant No. SKLT05-02)

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Guo, Y., Wang, D. & Zhang, S. Nanotribological behaviors of in situ nanoparticles doped molecular deposition films. Chin. Sci. Bull. 54, 4571–4576 (2009). https://doi.org/10.1007/s11434-009-0574-8

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  • DOI: https://doi.org/10.1007/s11434-009-0574-8

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