K. Ignatova, Y. Marcheva
The kinetics of stationary and pulse potentiostatic electrodeposition of Co, Ni and Cu as well as the possibility for their co-deposition in alloys CoNi and CoNiCu from slightly acidic citrate electrolyte was investigated. The morphologies and the elemental composition of coatings were studied using SEM and EDSA analysis respectively. It was established that at pulse deposition of CoNi the coatings were with smooth surface, crystalline structure with rounded crystals and average size about 200-300 nm at frequency 500 Hz. In the case of triple alloy CoNiCu deposition, with the increase of frequency up to 1 000 Hz a finer nanosized structure was formed, with the Ni content up to 27 %. The Co content in the triple alloy was not influenced substantially by the pulse frequencies and was about 71-76 %, while copper content decreased from 8 % to less than 5 %. The X-Ray analysis indicated that copper, cobalt, and nickel crystallize in cubic lattice (fcc) in all studied alloy coatings. Besides the cubic phases of the three metals, the presence of cobalt-containing phase with hexagonal crystal lattice (h.p.c.) was ascertained.
@article{7c3d3f84-2f7b-4b7b-b966-aee9fe446a7e,
title={STATIONARY AND PULSE ELECTRODEPOSITION OF CoNi AND CoNiCu COATINGS},
author={K. Ignatova and Y. Marcheva},
year={2013},
language={en}
}TY - JOUR TI - STATIONARY AND PULSE ELECTRODEPOSITION OF CoNi AND CoNiCu COATINGS AU - K. Ignatova AU - Y. Marcheva PY - 2013 LA - en ER -
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