The tribological properties of bioceramic coatings produced on Ti6Al4V alloy by plasma electrolytic oxidation

Durdu, Salih; Usta, Metin

doi:10.1016/j.ceramint.2013.09.062

Cited by 98 publications

(52 citation statements)

References 51 publications

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“…After PEO, in the secondary process, TiO 2 -based coatings were treated hydrothermal up to 250 C for different times in an autoclave or were placed in the SBF (simulated body fluid) at 36.5 C for up to 56 days. In our previous studies, we formed HAp on Ti alloy by a one-step process and investigated the formation and tribological properties of HAp-based composite PEO coatings under dry conditions [34,35].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Durdu

Usta

Berkem

2016

Surface and Coatings Technology

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Section: Accepted Manuscriptmentioning

confidence: 99%

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Durdu

Usta

Berkem

2016

Surface and Coatings Technology

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“…However, their surface hardness and corrosion resistance limit their application. Many scientists have done numerous studies aim to improve their hardness [6,7] and corrosion resistance [8,9]. Several surface treatment technologies have been developed, such as rare earth transformation coatings [10], laser surface melting [11], and organic coating [12].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of rare earth CeO2-doped TiO2 nanostructured composite coatings through micro-arc oxidation

Guo

et al. 2015

Ceramics International

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“…This sparks promoted coating growing, and may also lead to coating destruction [6]. Also, the coating time presented a relation with the pore size, with an increased in coating time, coatings presented higher pore size [22]. In addition, the coating thickness had a relation with the voltage reached during PEO, for 270 V similar coating thickness had been reported with a tendency to increase until 10 µm with 600 V [9].…”

Section: Semmentioning

confidence: 54%

EIS, Mott Schottky and EFM analysis of the electrochemical stability and dielectric properties of Ca-P-Ag and Ca-P-Si-Ag coatings obtained by plasma electrolytic oxidation in Ti6Al4V

Leal-Marin

Estupiñán-Duran

2017

Rev. Fac. Ing. Univ. Antioquia

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Ti6Al4V ELI (ASTM F136) alloy is one of the most used alloys in devices for osteosynthesis and joint replacement. However, the properties of this alloy can be improved regarding biocompatibility and the osteointegration with the bone tissue through coatings. The aim of this study was the evaluation of the electrochemical behavior of a coating obtained by plasma electrolytic oxidation on Ti6Al4V ELI, using electrolyte solutions enriched with PO 4 2-, Ca +2, Si +4 ions and various concentrations of Ag +1. The coatings were characterized by electrochemical impedance spectroscopy (EIS) and Mott-Schottky (M-S) in a three-electrode cell with a simulated physiological solution. The electrochemical behavior was compared with electrostatic force microscopy (EFM). The EIS results showed improved stability properties in corrosion for Ca-P-Ag coatings, compared with Ca-P-Si-Ag. Nyquist and Bode Spectra showed relaxations related to charge transference to the double electrochemical layer and the reflex of the microstructural changes and conductivity of the coating given by its composition. According to with M-S results, all the samples showed an n-type conductivity increased with silver inclusion. The potential, the phase, and amplitude of the coatings with silver inclusion compared to uncoated Ti6Al4V were observed by EFM. RESUMEN:El Ti6Al4V ELI (ASTM F136) es una de las aleaciones más empleadas en dispositivos de osteosíntesis y reemplazo articular. Sin embargo, las propiedades de esta aleación pueden ser mejoradas respecto a su biocompatibilidad y osteointegración con el tejido óseo a través de recubrimientos. El objetivo de este trabajo fue evaluar el comportamiento electroquímico de un recubrimiento obtenido por oxidación por plasma electrolítico sobre Ti6Al4V ELI empleando soluciones electrolíticas enriquecidas con iones de PO 4 2-, Ca +2 , Si +4 y varias concentraciones de Ag +1. Los recubrimientos se caracterizaron mediante espectroscopia de impedancia electroquímica (EIS) y Mott-Schottky (M-S) en una celda de tres electrodos con una solución fisiológica simulada. El comportamiento electroquímico se contrastó con microscopía de fuerza electrostática (EFM), donde se analizó el potencial eléctrico del recubrimiento. Los resultados de EIS mostraron mejores propiedades de estabilidad frente a la corrosión en los sustratos recubiertos con Ca-P-Ag, comparados con los recubiertos con Ca-P-Si-Ag. Los espectros de Nyquist y Bode mostraron relajaciones relacionadas con la transferencia de carga hacia la doble capa electroquímica como reflejo de los cambios microestructurales y de conductividad de los recubrimientos, dada por la presencia particular en cada caso, de los elementos contenidos en estos. De acuerdo con los resultados de M-S, todas las muestras ensayadas presentaron un comportamiento con dopado tipo n, cuya conductividad incrementó con la inclusión de plata. Mediante EFM se observaron mayores contrastes en el potencial, fase y la amplitud de los recubrimientos con mayor cantidad de plata respecto al Ti6Al...

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The tribological properties of bioceramic coatings produced on Ti6Al4V alloy by plasma electrolytic oxidation

Cited by 98 publications

References 51 publications

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Microstructure and properties of rare earth CeO2-doped TiO2 nanostructured composite coatings through micro-arc oxidation

EIS, Mott Schottky and EFM analysis of the electrochemical stability and dielectric properties of Ca-P-Ag and Ca-P-Si-Ag coatings obtained by plasma electrolytic oxidation in Ti6Al4V

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