Use of Sodium Borohydride in Electrodeposition of Nickel-Boron Coatings

Possibility was found of using the sodium borohydride additive in technologies for electrodeposition of nickel-boron coatings with various compositions and functional properties. The composition of a complex alkaline tartrate nickel-plating electrolyte at which this additive can be used is recommend...

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Bibliographic Details
Published in:Russian journal of applied chemistry 2019-06, Vol.92 (6), p.823-828
Main Authors: Anan’eva, E. Yu, Rogozhin, V. V., Osmanov, V. K., Mikhalenko, M. G.
Format: Article
Language:English
Subjects:
Alliances
Applied Electrochemistry and Metal Corrosion Protection
Borohydrides
Boron
Boron alloys
Chemical industry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Coated electrodes
Coatings
Composition
Current efficiency
Electrodeposition
Electrolytes
Industrial Chemistry/Chemical Engineering
Nickel
Power efficiency
Process parameters
Residual stress
Sodium
Throwing
Throwing power
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Summary:Possibility was found of using the sodium borohydride additive in technologies for electrodeposition of nickel-boron coatings with various compositions and functional properties. The composition of a complex alkaline tartrate nickel-plating electrolyte at which this additive can be used is recommended. The main parameters of the electrodeposition process and some properties of coatings obtained in the given electrolyte were examined. It was shown that sodium borohydride affects the throwing power of the electrolyte, current efficiency by nickel in its electrodeposition, composition of the nickel-boron alloy, and its internal stresses and microstructure.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427219060120