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Tribological Properties of Multilayer TiN and MoS2 Thin Films

Received: 22 May 2017     Accepted: 25 May 2017     Published: 13 October 2017
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Abstract

This paper presents tribological behavior of titanium nitride and molybdenum sulfide thin film coatings on a workpiece. The titanium nitride films were coated by RF magnetron sputtering method and molybdenum sulfide films were coated by vacuum thermal evaporation. Titanium nitride is a hard ceramic materials, which has excellent mechanical properties. However, the friction coefficient of titanium nitride is rather high. To improve the tribological properties of the titanium nitride films, a thin layer of molybdenum sulfide was coated as a solid lubricant. The results showed a substantial decrease in the coefficient of friction of dual-layered MoS2 over TiN compared with the titanium nitride film or as-received aluminum substrate. The low coefficient of friction can directly be correlated to the MoS2 layer whereas the TiN film acts as a robust and durable base material. The coefficient of friction was measured using a pin on a disc tribometer with a steel pin as the counter face. Our results demonstrated that the coating of MoS2 over TiN has a low coefficient of friction. In addition, it was also found that wear resistance of MoS2 coated TiN was better than both MoS2 and TiN films.

Published in Colloid and Surface Science (Volume 2, Issue 4)
DOI 10.11648/j.css.20170204.13
Page(s) 137-142
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Coefficient of Friction, Titanium Nitride, Molybdenum Sulfide, Tribology

References
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Cite This Article
  • APA Style

    Omer Ahmed, Sorin Cioc, Carmen Cioc, Ahalaptiya H. Jayatissa. (2017). Tribological Properties of Multilayer TiN and MoS2 Thin Films. Colloid and Surface Science, 2(4), 137-142. https://doi.org/10.11648/j.css.20170204.13

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    ACS Style

    Omer Ahmed; Sorin Cioc; Carmen Cioc; Ahalaptiya H. Jayatissa. Tribological Properties of Multilayer TiN and MoS2 Thin Films. Colloid Surf. Sci. 2017, 2(4), 137-142. doi: 10.11648/j.css.20170204.13

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    AMA Style

    Omer Ahmed, Sorin Cioc, Carmen Cioc, Ahalaptiya H. Jayatissa. Tribological Properties of Multilayer TiN and MoS2 Thin Films. Colloid Surf Sci. 2017;2(4):137-142. doi: 10.11648/j.css.20170204.13

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  • @article{10.11648/j.css.20170204.13,
      author = {Omer Ahmed and Sorin Cioc and Carmen Cioc and Ahalaptiya H. Jayatissa},
      title = {Tribological Properties of Multilayer TiN and MoS2 Thin Films},
      journal = {Colloid and Surface Science},
      volume = {2},
      number = {4},
      pages = {137-142},
      doi = {10.11648/j.css.20170204.13},
      url = {https://doi.org/10.11648/j.css.20170204.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.css.20170204.13},
      abstract = {This paper presents tribological behavior of titanium nitride and molybdenum sulfide thin film coatings on a workpiece. The titanium nitride films were coated by RF magnetron sputtering method and molybdenum sulfide films were coated by vacuum thermal evaporation. Titanium nitride is a hard ceramic materials, which has excellent mechanical properties. However, the friction coefficient of titanium nitride is rather high. To improve the tribological properties of the titanium nitride films, a thin layer of molybdenum sulfide was coated as a solid lubricant. The results showed a substantial decrease in the coefficient of friction of dual-layered MoS2 over TiN compared with the titanium nitride film or as-received aluminum substrate. The low coefficient of friction can directly be correlated to the MoS2 layer whereas the TiN film acts as a robust and durable base material. The coefficient of friction was measured using a pin on a disc tribometer with a steel pin as the counter face. Our results demonstrated that the coating of MoS2 over TiN has a low coefficient of friction. In addition, it was also found that wear resistance of MoS2 coated TiN was better than both MoS2 and TiN films.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Tribological Properties of Multilayer TiN and MoS2 Thin Films
    AU  - Omer Ahmed
    AU  - Sorin Cioc
    AU  - Carmen Cioc
    AU  - Ahalaptiya H. Jayatissa
    Y1  - 2017/10/13
    PY  - 2017
    N1  - https://doi.org/10.11648/j.css.20170204.13
    DO  - 10.11648/j.css.20170204.13
    T2  - Colloid and Surface Science
    JF  - Colloid and Surface Science
    JO  - Colloid and Surface Science
    SP  - 137
    EP  - 142
    PB  - Science Publishing Group
    SN  - 2578-9236
    UR  - https://doi.org/10.11648/j.css.20170204.13
    AB  - This paper presents tribological behavior of titanium nitride and molybdenum sulfide thin film coatings on a workpiece. The titanium nitride films were coated by RF magnetron sputtering method and molybdenum sulfide films were coated by vacuum thermal evaporation. Titanium nitride is a hard ceramic materials, which has excellent mechanical properties. However, the friction coefficient of titanium nitride is rather high. To improve the tribological properties of the titanium nitride films, a thin layer of molybdenum sulfide was coated as a solid lubricant. The results showed a substantial decrease in the coefficient of friction of dual-layered MoS2 over TiN compared with the titanium nitride film or as-received aluminum substrate. The low coefficient of friction can directly be correlated to the MoS2 layer whereas the TiN film acts as a robust and durable base material. The coefficient of friction was measured using a pin on a disc tribometer with a steel pin as the counter face. Our results demonstrated that the coating of MoS2 over TiN has a low coefficient of friction. In addition, it was also found that wear resistance of MoS2 coated TiN was better than both MoS2 and TiN films.
    VL  - 2
    IS  - 4
    ER  - 

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Author Information
  • Nanotechnology and MEMS Laboratory, Department of Mechanical, Industrial, and Manufacturing Engineering (MIME), The University of Toledo, Toledo, USA

  • Nanotechnology and MEMS Laboratory, Department of Mechanical, Industrial, and Manufacturing Engineering (MIME), The University of Toledo, Toledo, USA

  • Department of Engineering Technology, The University of Toledo, Toledo, USA

  • Nanotechnology and MEMS Laboratory, Department of Mechanical, Industrial, and Manufacturing Engineering (MIME), The University of Toledo, Toledo, USA

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