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Pattern formation during electrodeposition of indium–cobalt alloys

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Abstract

The investigations on the effect of the electrolysis conditions, including high speed electroplating, on the content, structure, morphology and some properties of electrodeposited In-Co alloys from citrate electrolytes are presented. It was shown that indium and cobalt could be successfully deposited from acid citrate electrolytes and deposition of alloys with indium content between 20 and 80 wt. % is possible. At high cobalt content, heterogeneous multiphase coatings with spatio-temporal structures are obtained. Spatio-temporal structures could be observed also during electrodeposition under intensive hydrodynamic flow and improved mass transport conditions at high current densities. The structures are obtained for the first time from silver- and cyanide-free non-alkaline stable electrolytes of a relatively simple composition.

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Acknowledgements

The authors are grateful to the Deutsche Forschungsgemeinschaft (DFG) for the support of the project 436 BUL 113/97/0-4. They express their gratitude to Umicore Galvanotechnik GmbH, Germany for the given possibility to perform high-speed plating experiments in the Jet-cell.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Bulgarian Academy of Science, 1113, Sofia, Bulgaria

    I. Krastev, Ts. Dobrovolska & S. Nineva

  2. Institute for Multidisciplinary Research, 11030, Belgrade, P.O. Box 33, Serbia

    U. Lačnjevac

Authors
  1. I. Krastev
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  2. Ts. Dobrovolska
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  3. U. Lačnjevac
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  4. S. Nineva
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Correspondence to Ts. Dobrovolska.

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Krastev, I., Dobrovolska, T., Lačnjevac, U. et al. Pattern formation during electrodeposition of indium–cobalt alloys. J Solid State Electrochem 16, 3449–3456 (2012). https://doi.org/10.1007/s10008-012-1766-8

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  • DOI: https://doi.org/10.1007/s10008-012-1766-8

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