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Fabrication and Characterization of NbSe2/Ag Encapsulation and Tribological Properties of Its Correlated Copper-Based Composites

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Abstract

The fabrication of NbSe2/Ag is that NbSe2 is encapsulated with a layer of nano-Ag by the chemical reduction method, the main purpose of which is to retain more NbSe2 in the copper matrix by avoiding the direct contact between NbSe2 and copper matrix. The powder metallurgy method is used for the preparation of copper-based composites using NbSe2/Ag filler. The microstructures, physical, and tribological properties of copper-based composites are evaluated in detail. It can be found that copper-based composites with NbSe2/Ag show the increased compactness, decreased hardness, and better tribological properties compared with uncoated NbSe2. Based on a series of experimental results analysis, a dense and continuous tribofilm formed, bonded metallurgically to the worn surface, accounts for the excellent tribological properties.

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Acknowledgements

This work was supported by the Key Project of National Natural Science Foundation of China (U1510205).

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Authors and Affiliations

  1. School of Mechanical and Electrical Engineering, China University of Mining and Technology, University Road, Quanshan District, Xuzhou, 221116, People’s Republic of China

    Jianfeng Li, Shuai Li & Zhencai Zhu

  2. Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining & Technology, Xuzhou, People’s Republic of China

    Jianfeng Li, Shuai Li & Zhencai Zhu

  3. School of Materials Science and Engineering, Jiangsu University, Key Laboratory of Tribology of Jiangsu Province, Zhenjiang, 212013, People’s Republic of China

    Changsheng Li

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  1. Jianfeng Li
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  2. Shuai Li
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Correspondence to Jianfeng Li or Changsheng Li.

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Li, J., Li, S., Zhu, Z. et al. Fabrication and Characterization of NbSe2/Ag Encapsulation and Tribological Properties of Its Correlated Copper-Based Composites. Tribol Lett 67, 79 (2019). https://doi.org/10.1007/s11249-019-1191-6

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