Abstract The mechanical behavior, corrosion mechanisms, and cytocompatibility at the interface of magnesium wires reinforced poly-lactic acid polymer composites were studied by in vitro degradation study 180 days. Surface modification Mg plasma-electrolytic oxidation improved shear strength from 10.9 MPa to 26.3 which decreased 8 13.6 Mg/PLA PEO-Mg/PLA composites, respectively, after 42 days de...

Among titanium alloys with non-toxic elements, the Ti-25Nb-25Ta alloy has good elastic behavior for applications in osseous implants, biocompatibility, and excellent corrosion resistance. The present study aimed to better biocompatibility characteristics of modifying its surface through Plasma Electrolytic Oxidation (PEO) treatment. formed oxide coating is amorphous composed two distinct porous...

MgAl and MgAl/ZnO coatings were prepared by plasma electrolytic oxidation (PEO) of AZ31 magnesium alloy in aluminate electrolyte (5 g/L NaAlO2) without with addition ZnO particles various concentrations. The coating was partially crystallized contained MgO MgAl2O4 phases. to had no significant effect on the surface morphology formed coatings, while Zn content increased particle X-ray diffractio...

This study investigated the effects of multi-walled carbon nanotubes (MWCNTs) and polycaprolactone (PCL) on quasi-in vivo corrosion behavior AZ31B Mg alloy treated by plasma electrolytic oxidation (PEO). Thin (∼2 µm, PCTPCL4) thick (∼60 PCTPCL6) PCL layers were applied only onto MWCNTs-PEO coating (PCT) as it showed better performance. Findings reveal that incorporation MWCNTs induced several s...

in this study, plasma electrolytic oxidation of 2024-t3 aluminum alloy was investigated. the electrolyte used in this investigation was an alkaline solution containing additives of silicate, phosphate, potassium hydroxide and glycerin. a conventional dc power source with a low applied voltage was employed. corrosion resistance of the oxide layer was investigated by means of tafel plots and elec...

In this study, nano-hydroxyapatite (nHA) based coatings reinforced with graphene nanosheets (GNS) were successfully synthesized on Ti6Al4V alloys using AC-plasma electrolytic oxidation (PEO) technique. The PEO treatments carried out at 1000, 1500, and 2000 Hz frequencies in different GNS containing electrolytes (free, 1.0, 1.5 wt%). combined effect of the deposition frequency weight percentage ...

In this research, plasma electrolytic oxidation (PEO) coatings were prepared on 7075 Al alloy in a silicate-based solution with Na2MoO4 additive using unipolar waveform at constant current density. The displayed micro-pores, micro-cracks, pancake-like and crater-like features, also solidified molten oxide particles the surface. majorly composed of Al2O3 (γ, δ, α), SiO2 (amorphous), MoO3 phases,...

In this paper, we employed plasma electrolytic oxidation (PEO) of aluminum in a water solution sodium tungstate (Na2WO4?2H2O) with the addition pure and Ce-loaded zeolites clinoptilolite 13 X for preparation oxide coatings. The obtained coatings were characterized respect to their morphologies chemical phase compositions using scanning electron microscopy coupled energy-dispersive X-ray spectro...

With plasma electrolytic oxidation (PEO), one can easily obtain thick (tens of microns), mechanically resilient and chemically stable oxide coating on aluminum other valve metal alloys. The study luminescent PEO coatings is a relatively new subfield the already well-established preparation methods. In recent years, many luminescence-based approaches have been developed, which detection ionizing...

In this work, plasma electrolytic oxidation (PEO) process was used to produce bioactive coatings, mainly composed by hydroxyapatite (Hap) and titanium oxide, on grade 2 alloy. All PEO treatments were carried out using a maximum voltage of 315 V, lower value in comparison with the works present literature, thus resulting more environmentally friendly process. The effects coatings KOH addition el...