Abstract
It is shown that, for the development of new chrome-plating technologies, it is necessary to proceed from the complicated Cr(III) chemistry. The analysis of the complexation processes of Cr(III) with hydroxycarboxylic acids in aqueous solutions is given. The results of investigations of deposition processes of chromium coatings from sulfate, oxalate–sulfate, and formate–glycine electrolytes are presented. Thin chromium films, as well as chromium films alloyed with cobalt, are obtained from formate–glycine electrolyte. With the use of atomic-force microscopy, it is shown that the formed chromium films are bright and possess a nanocrystalline structure and codeposition of chromium and cobalt leads to the formation of a more uniform structure.
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Original Russian Text © V.I. Bakanov, N.V. Nesterova, A.A. Yakupov, 2017, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2017, Vol. 53, No. 3, pp. 270–277.
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Bakanov, V.I., Nesterova, N.V. & Yakupov, A.A. Features of electroplating of nanocrystalline chromium coatings from electrolytes based on Cr(III). Prot Met Phys Chem Surf 53, 426–432 (2017). https://doi.org/10.1134/S2070205117030054
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DOI: https://doi.org/10.1134/S2070205117030054