Nanoparticle Dispersion, Microstructure and Thermal Effect of Multi-doped ZrO2/SiC from Sulphate Induced Electrolyte
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Pleiades Publishing, Ltd.
Abstract
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Effort to improve the hardness and thermal resilient properties of coating for advanced engineering
applications has necessitated this study. Zn sulphate electrolyte was induced with ZrO2-SiC composite particulate
at varied current density of 1.5 and 2.0 A/cm2 for 10 minutes. The incorporated composite particles
of ZrO2/SiC were varied in other to examine their mechanical responses on zinc electrolyte. The coated films
were characterised with scanning electron microscope with attached electron dispersion spectroscopy
(SEM/EDS) and atomic force microscopy (AFM). The micro-hardness properties of the coated and thermal
aged alloy were determined with high diamond micro-hardness tester. The anti-corrosion progression was examined using linear polarization technique in 3.65% NaCl. From the results, the incorporation of the composite matrix was found to impact significantly on the surface and microhardness properties. The co-deposition of composite submicron on the zinc electrolyte revealed that homogenous grain structure was obtained.To this end, a boost in the performance characteristics was attained due to effective co-deposition parameters in the electrolyte.
Keywords
T Technology (General), TJ Mechanical engineering and machinery