Plasma electrolytic oxidation (PEO) treated ceramic coatings were formed in silicate-based electrolytes without and with the addition of Al2O3, on an aluminum alloy. It was found that coating produced electrolyte containing 7 g/L Al2O3 exhibited most superior corrosion properties. The properties 0.5 M 1 NaCl solutions studied by means potentiodynamic polarization electrochemical impedance spect...

BACKGROUND/AIM Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation, is a promising electrochemical surface treatment technique for metals which has been used for the generation of various material surfaces and has been the focus of recent biomaterial research. It has been hypothesized that rough PEO surfaces should generally have properties that support cellular attachment an...

Here, we report a new simple and fast method of cobalt copper ferrites film fabrication on the Ti/TiO2 surface. The approach is based deposition gelatin gel containing nitrates surface porous oxide-silicon coatings titanium obtained by plasma electrolytic oxidation (PEO) followed two-stage annealing at 300 °C 800 to yield ferrite films with good adhesion PEO layer. presence Co/Cu phases was con...

Recently, a significant number of research projects have been directed towards designing and developing ceramic coatings for zirconium-based substrates due to their outstanding surface properties utilization in modern technologies. The plasma electrolytic oxidation (PEO) coating is an environmentally friendly wet method that can be performed wide range electrolytes. characteristics PEO tailored...

Abstract. This study analyzed the influence of electrolyte composition on corrosion resistance plasma electrolytic oxidation (PEO) coatings EV31 magnesium alloy. An solution was prepared by mixing 12 g/l Na3PO4 and various levels KOH (1, 2, 4 g/l). The PEO coating produced with a direct current (DC) regime 0.05 mA.cm-2 density maximum voltage 630 V. Electrochemical impedance spectroscopy perfor...

Thick ZnO/ZnAl2O4 coatings were synthesized on zinc alloy Z1 substrates through plasma electrolytic oxidation (PEO) for different anodization times. The prepared characterized by scanning SEM, XRD, diffuse reflectance and photoluminescence spectroscopy in order to establish the relationship between their structural optical properties PEO processing parameters. Under conditions (anodization time...

Understanding the role of nanoparticles in magnesium (Mg)-based materials and protective coating provides valuable information to achieve an optimized combination mechanical corrosion protection properties Mg nanocomposites. The present study investigates effects SiC on behavior structure Mg-SiC composites substrates coated by plasma electrolytic oxidation (PEO). Moreover, influence different v...

Ceramic coatings are in general a kind of brittle material because they predominantly made up ionic crystals that avoid dislocation motion caused by lattice distortion. In this regard, remarkable toughened ZrO2/MgO nanocomposite coating is obtained the plasma electrolytic oxidation (PEO) process and in-situ synthesized ZrO2 with quantitative control approach. It revealed toughening behavior rel...

The influence of current and frequency on energy consumption plasma electrolytic oxidation (PEO) a commercial aluminium alloy pre-treated by conventional anodizing in sulphuric acid has been investigated. combination 20-μm thick precursor anodic porous film, high (500 mA cm −2 ) (400 Hz) during PEO enables up to 76% savings compared direct treatment (50 Hz). time needed achieve uniform coating ...