Effect of the deposition parameters on the structure and physicochemical properties of protective Al2O3 coatings

A. D. Pogrebnyak, F. F. Komarov, A. Sh Kaverina, O. V. Sobol', Yu N. Tyurin, A. I. Kupchishin, M. K. Kylyshkanov

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Abstract

Three series of Al2O3 coating samples are fabricated by microarc oxidation under various deposition conditions and are studied by scanning electron microscopy (SEM) in combination with energy-dispersive x-ray spectroscopy (EDXS), Rutherford backscattering, and X-ray diffraction. Defects and pores in the coatings are analyzed by positron annihilation spectroscopy at room temperature without vacuum. No nanometer pores are detected in the coatings. When changing the electrolyte-plasma oxidation conditions, one can change the concentration and the ratio of the types of vacancy defects in these Al2O3 coatings.

Original languageEnglish
Pages (from-to)1688-1691
Number of pages4
JournalTechnical Physics
Volume58
Issue number11
DOIs
Publication statusPublished - 1 Nov 2013
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Pogrebnyak, A. D., Komarov, F. F., Kaverina, A. S., Sobol', O. V., Tyurin, Y. N., Kupchishin, A. I., & Kylyshkanov, M. K. (2013). Effect of the deposition parameters on the structure and physicochemical properties of protective Al2O3 coatings. Technical Physics, 58(11), 1688-1691. https://doi.org/10.1134/S1063784213110200