Microstructure-corrosion resistance relationship of direct and pulse current electrodeposited Zn-TiO2 nanocomposite coatings
Source abstract
Abstract
Abstract Zinc–TiO 2 nano-composite coatings were synthesized by Direct Current (DC) and Pulse Current (PC) electrodeposition techniques. The effects of the plating parameters on the microstructure, codeposition percentage of TiO 2 and corrosion behavior were investigated. The coatings morphology presents hexagonal grains perpendicularly oriented to the surface. Under DC conditions, TiO 2 content of the coatings decreased with increasing TiO 2 concentration of the electrolyte. Increasing applied current and TiO 2 concentration in the bath leads to a fine microstructure with corrosion currents as low as 2.7 µA/cm 2 . Under PC conditions, incorporation rate of nanoparticles tends to increase with increasing pulse frequency and decreasing current density. Incorporation of TiO 2 increases microhardness of the zinc coatings by improving deposit structure.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrodeposition and Electroless Coatings · Corrosion Behavior and Inhibition · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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