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Influence Of Embedded Tungsten Particles On Mechanical Behaviors Of Cvd Diamond Coating

Author

Listed:
  • YAO WANG

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • PING HE

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • YINGCHAO CHEN

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • MUSEN LIU

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • CHENG LI

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • NAICHAO CHEN

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China†Shanghai Key Laboratory of Materials, Protection and Advanced Materials in Electric Power, School of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, P. R. China)

  • JIANXING REN

    (School of Energy and Mechanical Engineering, Shanghai University of Electric Power, Yangpu District, Shanghai 200090, P. R. China)

  • QUANJUN ZHU

    (#x2021;Global Energy Interconnection Research Institute, State Grid Corporation of China, Beijing 102211, P. R. China)

Abstract

Diamond coating has gained intensive attraction in the tribological field due to its high hardness. However, its weak flexibility always gives rise to the fragile crack, which causes the delamination and peeling off from substrate. In this work, a novel deposition method combining the conventional hot filament chemical vapor deposition (HFCVD) and particles doping technique is proposed to balance the hardness and flexibility of diamond coating, by which the diamond coating with tungsten particles is deposited on the co-cemented tungsten carbide substrate. The as-deposited diamond coating is characterized by scanning electron microscopy (SEM) analysis, surface roughness and Raman spectrum. The indentation tests are conducted to evaluate the crack propagation of diamond coating. Tribological behavior is examined on a reciprocating ball-on-plate tribometer. The results indicate that tungsten carbide may be formed between tungsten particles and diamond coating. The W–WC–amorphous carbon–diamond structural coating can validly inhibit the crack propagation and decrease the friction coefficient. Hence, adding embedding particles into the diamond coating may provide a useful way in enhancing the mechanical properties of diamond coating.

Suggested Citation

  • Yao Wang & Ping He & Yingchao Chen & Musen Liu & Cheng Li & Naichao Chen & Jianxing Ren & Quanjun Zhu, 2020. "Influence Of Embedded Tungsten Particles On Mechanical Behaviors Of Cvd Diamond Coating," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 27(02), pages 1-11, February.
    • Handle: RePEc:wsi:srlxxx:v:27:y:2020:i:02:n:s0218625x19500975
    DOI: 10.1142/S0218625X19500975
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