SONO-ELECTROCHEMICAL PULSE DEPOSITION OF NiP COMPOSITE COATINGS
DOI:
https://doi.org/10.59957/jctm.v61.i4.2026.9Keywords:
NiP, composite coatings, ultrasonic stirring, electrochemical deposition, pulse modeAbstract
The growth rate, elemental composition and morphology of electrodeposited NiP composite coatings in pulse mode with ultrasound stirring were investigated. NiP(C) composite coatings include graphite (C) and NiP(Prts) coatings - oxide bimetallic particles Prts, mainly of SnO and NiO. When increasing the temperature to 60 - 70 oC at a concentration of graphite in the solution of 2 g L-1, the growth rate of the coatings decreases compared to that at room temperature (from 11 - 13 to 8 9 mg cm-2 h-1). The application of ultrasonic stirring and higher temperatures (60 - 70oC) increases the phosphorus content in the NiP(C) coatings to 16.38 wt. % Р. In the same conditions, a coarsening of the structure of NiP(C) coatings is observed. NiP(Prts) coatings grow slower than those with graphite
particles and are composed of nanosized spheroidal crystals. At higher content of bimetallic oxide particles in the solution, deposited NiP(Prts) coatings double their tin content at the expense of nickel (33.12 wt. % Ni, 15.95 wt. % P, 42.34 wt. % Sn), making the coating suitable for application as an anode material in Li-ion batteries.
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