Incorporation of Zirconia and Silica Nanoparticles into PEO-Coatings on Magnesium Alloys

Igor M. Imshinetsky; Sergey V. Gnedenkov; Sergey L. Sinebryukhov; Dmitry V. Mashtalyar; Andrew V. Samokhin; Yuri V. Tsvetkov

doi:10.4028/www.scientific.net/SSP.213.125

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Incorporation of Zirconia and Silica Nanoparticles into PEO-Coatings on Magnesium Alloys

Abstract:

The effect of dispersity and zeta-potential of the nanoscale materials (ZrO₂ and SiO₂) used as an electrolyte component for plasma electrolytic oxidation on the composition and properties of the coatings was investigated. In was established the improvement of the protective properties for coatings with the incorporated nanoparticles has been explained by the greater thickness of the protective layer, relatively low porosity and presence of narrow non-through pores. The layer with zirconia has a impedance modulus measured at low frequency (|Z|_f=0.01 Hz = 5.9·10⁵ Ω·cm²) on one order higher than the PEO-coating formed in the electrolyte without nanoparticles (|Z|_f=0.01 Hz = 8.010⁴ Ω·cm²).

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Periodical:

Solid State Phenomena (Volume 213)

Pages:

125-130

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.213.125

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Online since:

March 2014

Authors:

Igor M. Imshinetsky*, Sergey V. Gnedenkov, Sergey L. Sinebryukhov, Dmitry V. Mashtalyar, Andrew V. Samokhin, Yuri V. Tsvetkov

Keywords:

Anticorrosive Properties, Composite Coating, Nanomaterial, Plasma Electrolytic Oxidation

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