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Morphological Features and Electrochemical Properties of the Hydrophobized Sealed PEO-Coatings on Al Alloy
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HomeSolid State PhenomenaSolid State Phenomena Vol. 245Formation and Properties of the PVDF/PEO-Coatings...

Formation and Properties of the PVDF/PEO-Coatings on Commercially Pure Titanium

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Abstract:

Plasma electrolytic oxidation (PEO) of commercially pure titanium VT1-0 was performed in phosphate electrolyte. High-frequency 200 kHz bipolar signal at a duty cycle D=0.1 was used to form the oxide coatings. Polymer-containing anticorrosion coatings were formed by applying polyvinylidene fluoride (PVDF) on the base PEO-coating. The results of electrochemical tests have showed a decrease of corrosion current density by 2 orders of magnitude (down to 1.5∙10^-10 А∙сm^-2) and the corresponding increase of the polarization resistance (up to 1.9∙10⁸ Оhm∙сm²) in comparison with the metallic substrate.

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Physics and Technology of Nanostructured Materials III

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Periodical:

Solid State Phenomena (Volume 245)

Pages:

144-152

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.245.144

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Online since:

October 2015

Authors:

Vladimir S. Egorkin, Igor E. Vyaliy, Denis Opra, Alexander Sokolov, Sergey L. Sinebryukhov, Sergey V. Gnedenkov*

Keywords:

Duty Cycle, Electrochemical Impedance Spectroscopy, Plasma Electrolytic Oxidation, Polyvinylidene Fluoride, Protective Coatings, Titanium

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