Anodization of titanium alloys for biomedical applications

Jarosz, Magdalena; Grudzień, Joanna; Kapusta, Joanna; Sołtys-Mróz, Monika; Sulka, Grzegorz D.

doi:10.1016/b978-0-12-816706-9.00007-8

Cited by 10 publications

(6 citation statements)

References 133 publications

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“…In natural conditions, titanium is covered by a native oxide film of some nanometers [68], which can be increased by electrochemical anodization at a rate of about 2-3 nm V −1 [69][70][71][72][73].…”

Section: Electrochemical Passivationmentioning

confidence: 99%

Passive Layers and Corrosion Resistance of Biomedical Ti-6Al-4V and β-Ti Alloys

et al. 2021

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The high specific strength, good corrosion resistance, and great biocompatibility make titanium and its alloys the ideal materials for biomedical metallic implants. Ti-6Al-4V alloy is the most employed in practical biomedical applications because of the excellent combination of strength, fracture toughness, and corrosion resistance. However, recent studies have demonstrated some limits in biocompatibility due to the presence of toxic Al and V. Consequently, scientific literature has reported novel biomedical β-Ti alloys containing biocompatible β-stabilizers (such as Mo, Ta, and Zr) studying the possibility to obtain similar performances to the Ti-6Al-4V alloys. The aim of this review is to highlight the corrosion resistance of the passive layers on biomedical Ti-6Al-4V and β-type Ti alloys in the human body environment by reviewing relevant literature research contributions. The discussion is focused on all those factors that influence the performance of the passive layer at the surface of the alloy subjected to electrochemical corrosion, among which the alloy composition, the method selected to grow the oxide coating, and the physicochemical conditions of the body fluid are the most significant.

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Section: Electrochemical Passivationmentioning

confidence: 99%

Passive Layers and Corrosion Resistance of Biomedical Ti-6Al-4V and β-Ti Alloys

et al. 2021

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“…The most popular method nowadays is growing them from viscous mixed solvent electrolytes based on ethylene glycol (EG), with a complexing agent F ¯ in the form of HF and NH 4 F, often with H 3 PO 4 [ 22 , 23 , 24 ]. Application of TiNTs grown on the Ti support includes their use in PEC cells, encapsulation of drugs, air purification, water purification, construction of sensors, and use in electrochemical capacitors [ 25 , 26 , 27 , 28 , 29 ]. TiNTs in photoelectrochemical devices act as UV-Vis light absorbing photoanode material.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Cobalt Doping of Titanium Dioxide Nanotubes towards Photoanode Activity Enhancement

et al. 2021

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Doping and modification of TiO2 nanotubes were carried out using the hydrothermal method. The introduction of small amounts of cobalt (0.1 at %) into the structure of anatase caused an increase in the absorption of light in the visible spectrum, changes in the position of the flat band potential, a decrease in the threshold potential of water oxidation in the dark, and a significant increase in the anode photocurrent. The material was characterized by the SEM, EDX, and XRD methods, Raman spectroscopy, XPS, and UV-Vis reflectance measurements. Electrochemical measurement was used along with a number of electrochemical methods: chronoamperometry, electrochemical impedance spectroscopy, cyclic voltammetry, and linear sweep voltammetry in dark conditions and under solar light illumination. Improved photoelectrocatalytic activity of cobalt-doped TiO2 nanotubes is achieved mainly due to its regular nanostructure and real surface area increase, as well as improved visible light absorption for an appropriate dopant concentration.

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“…Anodization is an electrolytic process that increases the thickness of the titanium oxide layer. The thickness of the anodized oxide was found to vary at different voltages, anodizing times [ 58 ], electrolyte temperatures, and types of electrolyte solution [ 59 , 60 ], and the film displayed different colors depending on the light interference in the surface oxide layer [ 61 ]. TiO 2 was found to be the major oxide on the titanium surface [ 62 ].…”

Section: Discussionmentioning

confidence: 99%

Shear Bond Strength of Lithium Disilicate Bonded with Various Surface-Treated Titanium

Amornwichitwech

Palanuwech

2022

International Journal of Dentistry

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Purpose. Retention is one of the most important factors for fixed dental prostheses, especially in implant dentistry. Accordingly, the goal of this study was to evaluate the level of shear bond strength between titanium (Ti) subjected to different surface treatments and lithium disilicate glass-ceramics. Materials and Methods. In this work, 90 titanium alloy specimens were divided into six groups as follows: the control group (CT), 50 μm alumina airborne-particle abrasion group (SB), silica-coated group (CJ), anodization group (AN), anodization followed by alumina 50 μm airborne-particle abrasion group (ANSB), and anodization followed by silica coating group (ANCJ). Titanium specimens were bonded to lithium disilicate specimens with resin cement (Multilink N). The specimens were restored in water at 37°C for 24 h, and then, shear bond strength (SBS) tests were performed using a universal testing machine (Shimadzu, Japan). The SBS values were statistically analyzed. The failure mode of the debonded titanium was classified after viewing the samples under a stereoscope. Results. The results demonstrated that the mean SBSs of CT and AN were significantly lower than those of the other groups ( p < 0.05 ). The SB group showed the highest SBS (29.47 ± 2.41 MPa); however, there was no significant difference between SB, ANSB, ANCJ, and CJ. The stereoscopic analysis demonstrated that the failure mode of AN was predominantly adhesive failure; whereas, the other groups showed cohesive and mixed failures. Conclusions. In this study, it was found that the surface treatment with 50 μm alumina airborne-particle abrasion, silica coating with Cojet™ sand, anodization followed by 50 μm alumina airborne-particle abrasion, and anodization followed by silica coating with Cojet™ sand improved the SBS between titanium and lithium disilicate luted with Multilink N resin cement.

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Anodization of titanium alloys for biomedical applications

Cited by 10 publications

References 133 publications

Passive Layers and Corrosion Resistance of Biomedical Ti-6Al-4V and β-Ti Alloys

Passive Layers and Corrosion Resistance of Biomedical Ti-6Al-4V and β-Ti Alloys

Hydrothermal Cobalt Doping of Titanium Dioxide Nanotubes towards Photoanode Activity Enhancement

Shear Bond Strength of Lithium Disilicate Bonded with Various Surface-Treated Titanium

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