Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy

Vega, Fabio Leonardo Alférez; Olaya, Jhon J; Bautista-Ruiz, J.

doi:10.1016/j.ceramint.2017.10.161

Cited by 18 publications

(4 citation statements)

References 24 publications

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“…In Figure 2(b) and Figure 2(c) respectively, the behavior of the difference between simple-laye rand two-layer coatings is not as visually significant as shown in Figure 1; however, it can be seen that a greater layer thickness allows a decrease in the corrosion rate of the material; a situation that confirms the trend that has been shown in terms of improvement in the anticorrosion response. This behaviour is in line with studies that have demonstrated efficient corrosion protection mechanisms with coatings [10][11][12].…”

Section: Resultssupporting

confidence: 91%

Effect of layer thickness on anticorrosive performance of 316L steel coated with bismuth-titanium films

Garzón-Agudelo

Bautista-Ruiz

2021

J. Phys.: Conf. Ser.

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Bismuth and titanium are elements with remarkable properties and applications in technological developments and in the field of biomedical engineering. The sol-gel method was used to form a bismuth-titanium system, which allowed to establish if it was possible to obtain films with anticorrosive properties on 316L stainless steel. The anticorrosive response was evaluated by means of Tafel curves, defining the parameters to obtain thin and functional films with good tribological properties. The coatings were obtained by the spin coating technique, varying the spin speeds from 3000 rpm to 5000 rpm with monolayer and bilayer systems. More positive values of corrosion potential were obtained when the steel is coated by the films, which implies a lower propensity to corrosion in saline medium, lower corrosion rates and higher potentials are reported for films with higher titanium content, likewise, better efficiency of the films with respect to the uncoated substrate is presented, the higher the titanium content and a strong influence between the calculated efficiencies and the centrifugation speeds is not observed.

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Section: Resultssupporting

confidence: 91%

Effect of layer thickness on anticorrosive performance of 316L steel coated with bismuth-titanium films

Garzón-Agudelo

Bautista-Ruiz

2021

J. Phys.: Conf. Ser.

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“…In general, as the spin speed increases, the pellets are more homogeneous 18 . The grain size distributions for the coatings were also determined.…”

Section: Resultsmentioning

confidence: 99%

“…In this same graph the morphology of the oxides (white zones) can be appreciated, its size varies according to the speed with which the coatings were formed, that is to say, for speeds of obtaining 4000 rpm (Figure-1c) Greater agglomeration of the oxide with a smaller size of them. This can be attributed to the centrifugation process and consequently to the final thickness of the coatings, and also according to the investigations of Rajabi-Zamani and Feng the agglomerated structures observed in micrographs of Figure-1 are due to the aging or gelation time of the soles from which the coatings were formed 18,19,20 . Through the results of dispersive energies (EDX) it is possible to determine the composition of the oxides.…”

Section: Detection Methodsmentioning

confidence: 99%

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Bautista-Ruiz¹,

Aperador²,

Olaya³

2018

RJC

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In this investigation, the compound Bi24Si40O2 was synthesized via sol-gel and applied on substrates of 316L stainless steel by spin coating varying speed. In the coatings obtained, the corrosion response in simulated physiological solution was evaluated by electrochemical impedance spectroscopy and polarization potentiodynamic curves. The morphology and surface topography was studied, also, were determined the microstructure, thickness values and roughness of the coatings. The results of this study allow establishing a high degree of anticorrosive effectiveness offered by the coatings as a function of the number of layers applied to the substrate and their possible application in the biomedical industry.

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“…Self-healing characteristics of SiO 2 resolve the microcracks of damaged sites and improve the material corrosion resistance, thermal stability and chemical resistance. 34,35 Silica stimulates the osteoblast cells to generate new bone formation, while its absence causes the anomalous growth of bone. The inclusion of silica ions in the coating can regulate calciumphosphorus in bone tissues and exhibit antibacterial effects.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical evaluation of AZ31 Mg alloy in corrosion protection of titanium silicon oxide from Earle's solution

Kalaiyarasan,

Rajendran

2023

New J. Chem.

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Synthesis and corrosion resistance of SiO2-TiO2-ZrO2-Bi2O3 coatings spin-coated on Ti6Al4V alloy

Cited by 18 publications

References 24 publications

Effect of layer thickness on anticorrosive performance of 316L steel coated with bismuth-titanium films

Effect of layer thickness on anticorrosive performance of 316L steel coated with bismuth-titanium films

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Electrochemical evaluation of AZ31 Mg alloy in corrosion protection of titanium silicon oxide from Earle's solution

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