Tribology of new solid lubricating films produced by PVD

Authors

  • J. I. Oñate Fundación INASMET
  • M. Brizuela Fundación INASMET
  • A. García-Luis Fundación INASMET
  • I. Braceras Fundación INASMET
  • S. Pacheco Fundación INASMET
  • J. L. Viviente Fundación INASMET

DOI:

https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1015

Keywords:

Solid lubricant coatings, MoS2, PVD, Tribology, Wear, Friction

Abstract


MoS2 coatings, deposited by PVD show a low friction under vacuum conditions, but degrade easily under atmospheric conditions. This work describes the development of a new type of MoSx, coating, modified with WC. These coatings presented a very low and stable friction coefficient lower than 0.04 when tested under vacuum at 0.75 GPa in a ball on disc tribometer. Durability was higher than 1 million wear cycles, showing a wear rate of 1.3 10-16 m3/Nm. When tested under atmospheric conditions and up to 70 % RH, friction increased to 0.15 and durability reached a lower value of up to 3 x 105 cycles. Surface analyses in these coatings showed S/Mo ratios higher than 1.2 and with oxygen levels lower than 2 %, demonstrating the lubricant character of the coating.

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Published

2005-12-17

How to Cite

Oñate, J. I., Brizuela, M., García-Luis, A., Braceras, I., Pacheco, S., & Viviente, J. L. (2005). Tribology of new solid lubricating films produced by PVD. Revista De Metalurgia, 41(Extra), 148–153. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1015

Issue

Vol. 41 No. Extra (2005)

Section

Articles

License

Copyright (c) 2005 Consejo Superior de Investigaciones Científicas (CSIC)

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