Electrodeposition of nickel-titanium dioxide coatings and powders from aqueous sulfate solutions
Shotaevna T.A. Kospanovna B.A. Abduali B. Małgorzata O.
1 July 2025Elsevier Ltd
Polyhedron
2025#277
The development of composite electrochemical coatings represents an important direction in surface engineering that allows significant improvement of material properties while maintaining substrate integrity. Electrodeposited nickel coatings with ceramic particle inclusions are particularly promising due to their enhanced mechanical and corrosion resistance characteristics. The reduction process of Ni2+ from sulfate solutions containing titanium dioxide as a dispersed phase was studied by cyclic voltammetry. It was established that during cathodic polarization, nickel is deposited on the copper electrode surface together with titanium dioxide, forming a Ni-TiO2 composite electrochemical coating. To determine the corrosion resistance of the coatings, anodic and cathodic polarization curves were recorded for both nickel coating and nickel-titanium dioxide composite coating. It was shown that the composite coating exhibits resistance to dissolution under anodic polarization. The obtained Ni-TiO2 composite coatings were studied using X-ray fluorescence spectroscopy, scanning electron microscopy, and energy dispersive spectrometry. The nickel powders with titanium dioxide inclusions obtained during the experiments represent materials with unique performance properties due to their magnetic nature and synergistic interaction between components. The magnetic properties of nickel make this material indispensable in such areas as the production of magnets, magnetic cores, sensors, transducers and data storage devices, while the incorporation of titanium dioxide is particularly useful for providing additional oxidation resistance and increasing mechanical strength. This research contributes to the development of advanced functional materials with improved corrosion resistance and performance characteristics using a relatively simple production method.
Composite coatings , Corrosion resistance , Nickel , Powder , Titanium dioxide
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Al-Farabi Kazakh National University, Almaty, Kazakhstan
National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Almaty, Kazakhstan
Poznan University of Technology, Poznan, Poland
Al-Farabi Kazakh National University
National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan
Poznan University of Technology
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