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Development of the Process of Electrodeposition of High-Energy Composite Electrochemical Ni-B and Ni-Al Coatings from Electrolytes Based on Deep Eutectic Solvents. Part 2: Ni-Al composites
https://doi.org/10.31615/j.corros.prot.2025.118.4-3
Abstract
The possibility of electrochemically forming highly filled composite electrochemical coatings Ni-Al with an atomic ratio of components close to the optimal (1:1) from an electrolyte based on a deep eutectic solvent of choline chloride urea is demonstrated. Aluminum was introduced into the electrolyte in the form of ASD-4 powder. The aluminum additive in such an electrolyte is resistant to oxidation over a long period of time, which ensures the stability of the Ni-Al coating composition. Data on the elemental and phase composition of the Ni-Al electrochemical coatings indicate the potential for their use as high-energy composites. Aluminum is included in the coatings primarily in a metallic, unoxidized state. Both metals are contained in the coatings primarily in the elemental state; intermetallic compounds of nickel and aluminum are not detected. Carbon and oxygen impurities detected in the Ni-Al coatings are associated with the inclusion of components of the deep eutectic solvent and/or products of their electrochemical transformation, in particular, in the form of nickel carbide, in the cathode deposit.
Keywords
Supporting agencies: The work was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation.
About the Authors
S. S. Adilova
Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS)
Россия
Россия
Sabina S. Adilova, engineer 2 cat.
bld. 4, 31, Leninskiy pr., Moscow, 119071
A. B. Drovosekov
Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS)
Россия
Россия
Andrey B. Drovosekov, Cand. Sci. in Chemistry, senior scientist
bld. 4, 31, Leninskiy pr., Moscow, 119071
N. A. Polyakov
Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS)
Россия
Россия
Nikolay A. Polyakov, Cand. Sci. in Chemistry, Head of Laboratory
bld. 4, 31, Leninskiy pr., Moscow, 119071
A. I. Malkin
Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS)
Россия
Россия
Alexander I. Malkin, Dr. Sci. in Physics and Mathematics, Head of Laboratory
bld. 4, 31, Leninskiy pr., Moscow, 119071
References
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Review
For citations:
Adilova S.S., Drovosekov A.B., Polyakov N.A., Malkin A.I. Development of the Process of Electrodeposition of High-Energy Composite Electrochemical Ni-B and Ni-Al Coatings from Electrolytes Based on Deep Eutectic Solvents. Part 2: Ni-Al composites. Theory and Practice of Corrosion Protection. 2025;30(4):29-34. (In Russ.) https://doi.org/10.31615/j.corros.prot.2025.118.4-3
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