The Effect of Additives of Ni, Co, or Fe Sulfates in the Alkali-Silicate Electrolyte for Microarc Oxidation on the Characteristics of Coatings Formed on Titanium


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Abstract

The effect of nickel, cobalt, and iron sulfates’ additives in the alkali-silicate electrolyte for microarc oxidation on the element composition and electrochemical behavior of MAO-coatings formed on titanium has been studied. It has been established that these additives were incorporated into an oxide layer. The increase of the content of these components in the electrolyte resulted in the decrease of their content (along with silicon) in the coating and the increase of the titanium content. This dependence can be related to the MAO process mechanism specifics and, first of all, to changes in temperature–time characteristics of microarc discharges.

About the authors

M. V. Gerasimov

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Author for correspondence.
Email: mvger2018@yandex.ru
Russian Federation, Moscow, 119071

N. L. Bogdashkina

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: mvger2018@yandex.ru
Russian Federation, Moscow, 119071

R. H. Zalavutdinov

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: mvger2018@yandex.ru
Russian Federation, Moscow, 119071

A. I. Shcherbakov

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: mvger2018@yandex.ru
Russian Federation, Moscow, 119071

A. V. Apelfeld

Moscow Aviation Institute (National Research University)

Email: mvger2018@yandex.ru
Russian Federation, Moscow, 109383

I. O. Kondratsky

Moscow Aviation Institute (National Research University)

Email: mvger2018@yandex.ru
Russian Federation, Moscow, 109383

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