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Deposition of ultrahard Ti–Si–N coatings by pulsed high-current reactive magnetron sputtering

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Abstract

We report on the results of investigation of properties of ultrahard Ti–Si–N coatings deposited by pulsed high-current magnetron reactive sputtering (discharge pulse voltage is 300–900 V, discharge pulse current is up to 200 A, pulse duration is 10–100 μs, and pulse repetition rate is 20–2000 Hz). It is shown that for a short sputtering pulse (25 μs) and a high discharge current (160 A), the films exhibit high hardness (66 GPa), wear resistance, better adhesion, and a lower sliding friction coefficient. The reason is an enhancement of ion bombardment of the growing coating due to higher plasma density in the substrate region (1013 cm–3) and a manifold increase in the degree of ionization of the plasma with increasing peak discharge current (mainly due to the material being sputtered).

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Authors and Affiliations

  1. Institute of High-Current Electronics, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 2/3, Tomsk, 634055, Russia

    K. V. Oskomov, A. N. Zakharov & S. V. Rabotkin

  2. National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk, 634050, Russia

    A. A. Solov’ev

Authors
  1. K. V. Oskomov
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  2. A. N. Zakharov
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  3. S. V. Rabotkin
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  4. A. A. Solov’ev
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Correspondence to K. V. Oskomov.

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Original Russian Text © K.V. Oskomov, A.N. Zakharov, S.V. Rabotkin, A.A. Solov’ev, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 61, No. 2, pp. 59–64.

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Oskomov, K.V., Zakharov, A.N., Rabotkin, S.V. et al. Deposition of ultrahard Ti–Si–N coatings by pulsed high-current reactive magnetron sputtering. Tech. Phys. 61, 215–220 (2016). https://doi.org/10.1134/S1063784216020171

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  • DOI: https://doi.org/10.1134/S1063784216020171

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