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Effect of Interface Ni and Ti Films on Antifriction Properties of Nanolayer Thin-Film WS2/g-C Coatings

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Abstract

Model thin-film coatings containing laminar WS2 films and nanometer-thick carbon films are created by the reactive pulsed laser deposition technique. To activate the growth of the graphite-like state, the carbon films (g-C) were deposited on the surface of nickel or titanium films formed between WS2 and g-C layers. It is found that the WS2/Ni/g-C/WS2 coating is apt to manifest a very low coefficient of friction (less than 0.013) in tests in dry air without lubrication. The coating with a titanium interface film does not possess such properties. The structural state of the coating before and after the tribotest was monitored by micro-Raman spectroscopy (MRS). Possible causes of the different behavior of coatings with the chosen metal film catalysts are revealed.

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Funding

This work was supported by the Russian Science Foundation, project no. 22-29-00197.

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Correspondence to R. I. Romanov.

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The authors declare that they have no conflicts of interest.

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Translated by A. Nikol’skii

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Romanov, R.I., Fominskii, D.V., Kas’yanenko, V.A. et al. Effect of Interface Ni and Ti Films on Antifriction Properties of Nanolayer Thin-Film WS2/g-C Coatings. Phys. Atom. Nuclei 85, 1816–1820 (2022). https://doi.org/10.1134/S1063778822090307

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  • DOI: https://doi.org/10.1134/S1063778822090307

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