Journal
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
Volume 56, Issue 1, Pages 1-10Publisher
SPRINGER
DOI: 10.1007/s41779-019-00413-8
Keywords
Electrophoretic deposition; Voltage; Deposition time; Nanocomposite coating; Corrosion
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This paper presents the research work carried out in the electrophoretic deposition (EPD) of the chitosan (CS)-based nanocomposite coatings containing bioglass (BG), hydroxyapatite (HA), and halloysite nanotube (HNT) on the titanium (Ti) substrate. The focus was in understanding the effect of process parameters, like the insulation process of electrodes, cathode to anode surface area ratio, applied voltage, and deposition time. Insulated electrodes with a lower cathode to anode surface area ratio were led to more deposition mass. Enhancement of electrophoresis voltage and deposition time achieved more heterogeneous morphology and lower density. The comprehensive mechanism of the CS-based EPD studied the effect of process parameters was exhibited. By the variation of deposition time (0-25 min), the deposition weight (0-3.5 mg/cm(2)) and thickness changed (0-45 mu m). Polarization and impedance analyses indicated that applying a medium voltage led to the formation of a great anti-corrosive coating.
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