Synthesis by anodic-spark deposition of Ca- and P-containing films on pure titanium and their biological response

Banakh, O.; Journot, Tony; Gay, Pierre-Antoine; Matthey, J.; Csefalvay, Catherine; Калиниченко, О. А.; Sereda, Olha; Moussa, Mira; Durual, Stéphane; Snizhko, Lyubov

doi:10.1016/j.apsusc.2016.03.161

Cited by 21 publications

(10 citation statements)

References 14 publications

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“…Regarding the anodic treated samples, the decrease on OCP with immersion time may be related to partial dissolution of the anodic film. Banakh et al [35] evaluated the response of anodic oxide layers containing Ca and P by immersion in a simulated body fluid and reported that Ca and P content in the anodic layers decreased after 14 days of immersion. Moreover, Ca dissolution occurs at higher rates than P. However, during the immersion period, the anodic treated samples presented more positive values than untreated Ti indicating a lower tendency to corrosion.…”

Section: Open Circuit Potential Evolution Versus Immersion Timementioning

confidence: 99%

Corrosion mechanisms in titanium oxide-based films produced by anodic treatment

Alves

Wenger

Ponthiaux

et al. 2017

Electrochimica Acta

142

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A B S T R A C TThanks to its excellent corrosion resistance, good mechanical properties and biocompatibility, titanium has been widely used as dental implant material. A passive oxide film formed on titanium surface is responsible for its high corrosion resistance. This study has evaluated the surface characteristics of oxide layers formed on commercially pure titanium samples by anodic treatment and the effect of anodic treatment on their corrosion behaviour. FEG-SEM and XRD were used to evaluate the micromorphology and crystalline structure of these oxide films. Their corrosion resistance was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves. EIS was performed for different times of immersion and a new equivalent electrical circuit (EEC) is proposed to fit the experimental data of the anodic oxide films. It was concluded that the morphology, composition, and structure of the outer porous layer of the anodic layer determine the corrosion protection of the material.

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Section: Open Circuit Potential Evolution Versus Immersion Timementioning

confidence: 99%

Corrosion mechanisms in titanium oxide-based films produced by anodic treatment

Alves

Wenger

Ponthiaux

et al. 2017

Electrochimica Acta

142

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“…Biological assays were detailed previously [13,14]. Briefly, human osteoblasts like cells HOS (ATCC ® CRL1543 TM ) (HOBs) were grown on several anodized samples.…”

Section: Sample Characterisationmentioning

confidence: 99%

The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications

Banakh¹,

Snizhko²,

Journot³

et al. 2018

Metals

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Plasma electrolytic oxidation (PEO) of Ti-15Mo alloys conducted in electrolytes containing Ca and P compounds can be an efficient process with which to obtain bioactive coatings. This paper reports on the influence of the nature of the electrolyte, its concentration, and PEO process parameters on the properties of anodized layers on Ti-15Mo. A wide range of Ca-and P-containing alkaline and acidic solutions was employed to incorporate Ca and P ions into the anodized layer. The efficiency of the incorporation was evaluated by the Ca/P ratio in the coating as compared to that in the electrolyte. It was found that alkaline solutions are not suitable electrolytes for the formation of good quality, uniform PEO coatings. Only acidic electrolytes are appropriate for obtaining well-adherent homogeneous layers on Ti-15Mo. However, the maximum Ca/P ratios reached in the coatings were rather low (close to 1). The variation of electrical signal (negative-to-positive current ratio, frequency) and time of electrolysis do not result in a substantial change of this value. The processing time, however, did influence the coating thickness. Despite their low Ca/P ratio, the anodized layers demonstrate good biological activity, comparable to pure microrough titanium.

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“…With a mixed electrolyte including both silicates and phosphates, Li et al [3] showed in particular the simultaneous incorporation of both compounds. Furthermore, Banakh et al (11] demonstrated that the incorporation of phosphate and calcium, from the electrolyte {KOH + Ca 3 (P0 4 )i}, was preferentially carried out in the coating amorphous phase. Khorasanian et al [12] have studied a low cost and original electrolyte composed of sodium silicate, hydrogen peroxide, starch and sodium hydroxide.…”

Section: Introductionmentioning

confidence: 99%

In-depth study of the influence of electrolyte composition on coatings prepared by plasma electrolytic oxidation of TA6V alloy

Laveissière

Cerda

Roche

et al. 2019

Surface and Coatings Technology

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OATAO is an open access repository that collects the work of some Toulouse researchers and makes it freely available over the web where possible. This is version published in:Official URL: To cite this version:A B S T R A C T Coatings were prepared on TA6V alloy by plasma electrolytic oxidation (PEO) using a standard electrical signal. Influence of electrolyte composition on coating characteristics was then extensively studied using four electrolytes of increasing complexity, containing KOH, Na 2 SiO 3 and NaAlO 2 . The combination of SEM, GDOES, XRD characterizations on the one hand and of thermodynamic calculations on the other hand, deeply clarified coating compositions, showing in particular that they include both amorphous and crystalline phases. Amorphous phase resulted directly from the presence of silicate in solution, and was made of complex Si-based oxides difficult to clearly identify. Depending on electrolyte composition, crystalline phases in coatings included simple oxide (i.e. anatase and rutile TiO 2 ) and/or mixed oxide (Al 2 TiO 5 ), resulting from both substrate oxidation and deposition from electrolyte. Therefore, this study successfully offered an innovative approach, combining both experimental characterizations and thermodynamic calculations, to study and tune chemical characteristics of PEO coatings on TA6V.

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Synthesis by anodic-spark deposition of Ca- and P-containing films on pure titanium and their biological response

Cited by 21 publications

References 14 publications

Corrosion mechanisms in titanium oxide-based films produced by anodic treatment

Corrosion mechanisms in titanium oxide-based films produced by anodic treatment

The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications

In-depth study of the influence of electrolyte composition on coatings prepared by plasma electrolytic oxidation of TA6V alloy

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