期刊
MATERIALS & DESIGN
卷 182, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2019.108055
关键词
Ni-TiO2 composites; MHD effect; Electrodeposition; Magnetic field
资金
- Polish Ministry of Science and Higher Education [IP2015/049974]
- Polish National Center of Science [2017/26/D/ST8/00508]
This paper reports the results of analysis of magnetic field supported electrochemical deposition of Ni-TiO2 composite coatings from electrolytes containing nickel glycinate complexes. The effect of several parameters, including electrode potential, concentration of TiO2 in the electrolyte as well as value of magnetic field induction vector on deposition rate, composition, current efficiency, structure, surface states and surface morphology was described. Electrodeposited composites contained up to 1.43 wt% of TiO2. Depending on the applied electrolysis condition, current efficiency amounted to from 38 to 55.4% for B = 0 T and from 43.1 to 64.8 for B = 1 T. The electrochemical tests performed as well as determined diffusion coefficient values indicated that the magnetic field strongly influenced the kinetics of electrode processes. Voltammetric curves as well as further characterization of deposited coatings indicated that the deposition process is accompanied by precipitation of hydrides and hydroxides during electrolysis. (C) 2019 The Author. Published by Elsevier Ltd.
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