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Thermally Controlled Formation of WO3 Nano- and Microcrystals on the Surface of Coatings Produced on Titanium by Plasma Electrolytic Oxidation

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Inorganic Materials Aims and scope

Abstract—

We demonstrate that air annealing of oxide layers produced on titanium by plasma electrolytic oxidation and containing WO3, MnWO4, and ZnWO4 leads to the surface growth of nano- and microcrystals consisting predominantly of WO3. The crystals are initially formed around the perimeter of the coating pores. The size, composition, and number of crystals depend on the annealing temperature. We discuss possible causes and mechanisms of crystal growth.

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Authors and Affiliations

  1. Institute of Chemistry, Far East Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, 690022, Vladivostok, Russia

    V. S. Rudnev, M. S. Vasilyeva & I. V. Lukiyanchuk

  2. Far East Federal University, ul. Sukhanova 8, 690091, Vladivostok, Russia

    V. S. Rudnev & M. S. Vasilyeva

Authors
  1. V. S. Rudnev
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  2. M. S. Vasilyeva
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  3. I. V. Lukiyanchuk
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Correspondence to V. S. Rudnev.

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Rudnev, V.S., Vasilyeva, M.S. & Lukiyanchuk, I.V. Thermally Controlled Formation of WO3 Nano- and Microcrystals on the Surface of Coatings Produced on Titanium by Plasma Electrolytic Oxidation. Inorg Mater 55, 681–686 (2019). https://doi.org/10.1134/S0020168519070148

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  • DOI: https://doi.org/10.1134/S0020168519070148

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