Obtaining and characterization of PEO layers prepared on CP-Ti in sodium dihydrogen phosphate dihydrate acidic electrolyte solution

Abstract

Phosphorus-incorporated oxide layers were grown on commercially pure titanium during plasma electrolytic oxidation in sodium dihydrogen phosphate dihydrate solution. Microstructure, mechanical and electrochemical behavior of the surface oxides indicated a dominant anatase and rutile structure of TiO2 with nanocrystallites ranging from 45-64 nm and 48-98 nm, respectively as well as Ti 2+ , Ti 3+ and Ti 4+ chemical species. Using a combination of process time, applied current and electrolyte concentration, coating thicknesses up to about 10 µm were fabricated. Best mechanical performance was observed for potentiostatic deposited samples yielding a 453 HV300 hardness, 19 N adhesive failure and 38 N full delamination resistance. All PEO-coated samples in this work exhibit a corrosion current density with one order of magnitude lower than CP-Ti when subjected to Ringer's physiological solution.

Novel Structures of Functionalized Graphene Oxide with Hydrazide: Characterization and Bioevaluation of Antimicrobial and Cytocompatibility Features

“…As shown in Figure 3h-j, GO-3 is characterized by straight rods (~5 µm length) with a square cross-section [42]. The SEM micrographs highlight that the GO functionalized with hydrazides leads to the formation of disordered nanostructures [43,44].…”

Investigations into Ti-Based Metallic Alloys for Biomedical Purposes

“…For this purpose, there are several studies that estimate the relationship between the chemical composition and the microstructure of the surface, the physical-mechanical properties of biomaterials, the substrate and the coating material, and the properties of the human environment [13][14][15][16].…”

“…Such methods are developed in such a way as to improve quality of life without polluting the environment and for workplaces where production is carried out. Additionally, eco-friendly implants guarantee economic efficiency and reproducibility, offering enhanced characteristics and performance compared to traditionally obtained materials [16][17][18]. Even though metallic biomaterials have been employed since the late 1960, they currently receive a great deal of attention; recently, there has been a huge inclination toward the use of metallic alloys, which have increased in importance through their extensive employment as biomaterials, especially in medical implantology.…”

Designing Ceramic/Polymer Composite as Highly Ionic Conductive Solid‐State Electrolytes

“…Currently, inorganic solid electrolytes mainly include perovskite‐type (e. g., Li 0.5 La 0.5 TiO 3 [LLTO]), [15–17] NASICON‐type (e. g., Li 1.4 Al 0.4 Ti 1.6 (PO 4 ) 3 , [LATP]; Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 , [LAGP]), [18–24] and garnet‐type (e. g., Li 7 La 3 Zr 2 O 12 , [LLZO]) [25–29] in oxides and sulfides (e. g., Li 10 GeP 2 S 12 [LGPS]) [30–33] . Polymer electrolytes mainly include poly(ethylene oxide) (PEO), [34–39] poly(vinylidene fluoride) (PVDF), [40–43] poly(acrylonitrile) (PAN), [44–46] and poly(methyl methacrylate) (PMMA) [47,48] …”