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Magnetoactive oxide layers formed on titanium by plasma-electrolytic technique

  • Nanoscale and Nanostructured Materials and Coatings
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Abstract

Two kinds of iron-containing coatings, specifically those obtained from electrolytes containing polyphosphate iron complexes (no. 1) and from electrolyte suspensions (no. 2), are formed and studied. According to the microprobe analysis, the iron content in the coatings is 6–7 at %. Coatings of type 1 are paramagnetic, while coatings of type 2 are ferromagnetic. The distribution of elements over the depth of coatings is heterogeneous and the typical components of the surfaces have different compositions. Iron and titanium are concentrated at the bottom and walls of pores. Upon annealing in air, iron and titanium phosphates crystallize in coatings no. 1, while maghemite is formed in coatings no. 2. Based on the results obtained, the supposition is made that the ferromagnetic properties of type 2 coatings are determined by the presence of fine-dispersed magnetite and/or maghemite particles in them, as well as titanium-magnetite and/or titanium-maghemite grains.

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Authors and Affiliations

  1. Institute of Chemistry, Far East Division of the Russian Academy of Sciences, pr. 100-Letiya Vladivostoka 159, Vladivostok, 690022, Russia

    V. S. Rudnev, A. Yu. Ustinov, I. V. Lukiyanchuk, I. A. Tkachenko & V. P. Morozova

  2. Institute of Physics and Information Technologies, Far East National University, ul. Sukhanova 8, Vladivostok, 690950, Russia

    P. V. Kharitonskii & A. M. Frolov

Authors
  1. V. S. Rudnev
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  2. A. Yu. Ustinov
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  3. I. V. Lukiyanchuk
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  4. P. V. Kharitonskii
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  5. A. M. Frolov
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  6. I. A. Tkachenko
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  7. V. P. Morozova
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Corresponding author

Correspondence to V. S. Rudnev.

Additional information

Original Russian Text © V.S. Rudnev, A.Yu. Ustinov, I.V. Lukiyanchuk, P.V. Kharitonskii, A. M. Frolov, I.A. Tkachenko, V.P. Morozova, 2010, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2010, Vol. 46, No. 5, pp. 494–500.

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Rudnev, V.S., Ustinov, A.Y., Lukiyanchuk, I.V. et al. Magnetoactive oxide layers formed on titanium by plasma-electrolytic technique. Prot Met Phys Chem Surf 46, 566–572 (2010). https://doi.org/10.1134/S2070205110050114

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  • DOI: https://doi.org/10.1134/S2070205110050114

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