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The synthesis of oxide-ceramic coatings on titanium carbide (TiC) was carried out using the plasma-electrolytic oxidation (PEO) method. X-ray phase analysis established that the oxide-ceramic coatings consist of titanium oxides—rutile (60 wt%), anatase (5 wt%), and brookite (5 wt%). The Gibbs energies of possible chemical reactions of the interaction of the components of the electrolyte plasma with TiC were calculated. The influence of the discharge plasma channel temperature on the formation of reaction products was analyzed. It was established that the most likely cause of the formation of a developed porous structure of the oxide-ceramic coating is the attenuation of spark discharges with the collapse of vapor–gas bubbles.

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Interaction of Electrolyte Plasma Components with TiC

  • 会议论文

  • 发表日期：

    2025年

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  • Volodymyr Posuvailo,
  • Ihor Koval’chuck,
  • Halyna Chumalo,
  • Taras Kravchyshyn,
  • Yurii Kanyuk,
  • Maksym Posuvailo

摘要

The synthesis of oxide-ceramic coatings on titanium carbide (TiC) was carried out using the plasma-electrolytic oxidation (PEO) method. X-ray phase analysis established that the oxide-ceramic coatings consist of titanium oxides—rutile (60 wt%), anatase (5 wt%), and brookite (5 wt%). The Gibbs energies of possible chemical reactions of the interaction of the components of the electrolyte plasma with TiC were calculated. The influence of the discharge plasma channel temperature on the formation of reaction products was analyzed. It was established that the most likely cause of the formation of a developed porous structure of the oxide-ceramic coating is the attenuation of spark discharges with the collapse of vapor–gas bubbles.