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Structural Phase State and Thermal Cyclic Stability of the Thermal Barrier Zr–Si–O Coatings Deposited on a Copper Substrate by the Microplasma Method

  • T. I. DorofeevaEmail author
  • T. A. Gubaidullina
  • B. P. Gritsenko
  • V. P. Sergeev
NEW SUBSTANCES, MATERIALS, AND COATINGS
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Abstract

In this work, preparation of thermal barrier coatings based on zirconium oxide is shown. The phased treatment of the copper substrate is proposed in order to obtain a layered thermal barrier oxide coating on it. The sample surface is nanostructured, titanium is deposited layer-by-layer (by the vacuum-arc method) and then zirconium (by the magnetron method), and then zirconium is converted into zirconium dioxide by the microplasma method. The formed oxide-ceramic coatings contain elements from a solution, according to the results of elemental analysis, and zirconium dioxide in tetragonal and monoclinic modifications, according to the results of X-ray diffraction. A study of thermal cyclic stability was carried out. It is revealed that an increase in the time of microplasma treatment to a certain value has a positive effect on the thermal cyclic properties of the obtained layer material and it is able to sustain more than 90 cycles without serious damage to the surface layer.

Keywords:

microplasma oxidation zirconium dioxide oxide-ceramic coating thermal barrier coating 

Notes

FUNDING

The work was performed in the framework of the Program of Basic Scientific Research of the Russian Academy of Sciences for 2013–2020, direction III.23.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • T. I. Dorofeeva
    • 1
    Email author
  • T. A. Gubaidullina
    • 1
  • B. P. Gritsenko
    • 1
    • 2
  • V. P. Sergeev
    • 1
    • 2
  1. 1.Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of SciencesTomskRussia
  2. 2.National Research Tomsk Polytechnic UniversityTomskRussia

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