Microstructure and properties of TiO2 nanotube coatings on bone plate surface fabrication by anodic oxidation

Wu, Shuxu; Wang, Shouren; Li, Wentao; Yu, Xiuchun; Wang, Gaoqi; Chang, Zhengqi; Wen, Daosheng

doi:10.1016/j.surfcoat.2019.06.019

Cited by 31 publications

(15 citation statements)

References 34 publications

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“…The highest thickness value was 16 μm in regard to the time variation, and highest thickness value was 10 μm in regard to concentration variation. In accordance with reported studies, with the electrochemical anodization technique used in order to obtain TiO 2 coating with nanotubes for biomedical applications, thicknesses from 22 to 34 μm were obtained 30 .…”

Section: Thickness Analysis Though Profilometrysupporting

confidence: 81%

Morphological and Structural Study of Anodized Titanium Grade 2, Using HCl in Aqueous Solution

et al. 2022

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In this work, the electrochemical anodization process was carried out on titanium grade 2, using an electrolytic solution of 3 M and 0.15 M HCl with voltages of 11 V, 12 V and 15 V, as well as time variations in the experimental process and later an annealing process at 750 °C. According to the results obtained, the TiO 2 coatings presented different morphologies on their surface, which consisted of nanopores, nanowires and clusters of oxide grains, as well as a combination of anatase and rutile crystalline phases. Band Gap variations were found to be non-significant despite changes in the morphology of the coatings at different anodization conditions, with an average value of 2.91 eV. It was observed that the anodized samples treated by the annealing process at 750 °C, thickness values up to 16 μm were obtained.

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Section: Thickness Analysis Though Profilometrysupporting

confidence: 81%

Morphological and Structural Study of Anodized Titanium Grade 2, Using HCl in Aqueous Solution

et al. 2022

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“…The formation of an oxide nanotube layer on the titanium grade 2 surface ensured higher corrosion resistance of the sample compared to the other two types of surface pre-treatments. Presumably, the nanotube oxide layer provided a barrier separating the metallic substrate from the corrosive environment (as shown in Figure 2d), resulting in higher corrosion resistance [76]. Deposition of the biopolymer coating on modified substrates contributed to a decrease in the corrosion resistance of the samples.…”

Section: Corrosion Studiesmentioning

confidence: 99%

Effects of Surface Pretreatment of Titanium Substrates on Properties of Electrophoretically Deposited Biopolymer Chitosan/Eudragit E 100 Coatings

et al. 2021

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The preparation of the metal surface before coating application is fundamental in determining the properties of the coatings, particularly the roughness, adhesion, and corrosion resistance. In this work, chitosan/Eudragit E 100 (chit/EE100) were fabricated by electrophoretic deposition (EPD) and both their microstructure and properties were investigated. The present research is aimed at characterizing the effects of the surface pretreatment of titanium substrate, applied deposition voltage, and time on physical, mechanical, and electrochemical properties of coatings. The coating’s microstructure, topography, thickness, wettability, adhesion, and corrosion behavior were examined. The applied process parameters influenced the morphology of the coatings, which affected their properties. Coatings with the best properties, i.e., uniformity, proper thickness and roughness, hydrophilicity, highest adhesion to the substrate, and corrosion resistance, were obtained after deposition of chit/EE100 coating on nanotubular oxide layers produced by previous electrochemical oxidation.

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“…Such changes in microhardness are related to the thickness of the oxide layer on the Ti-13Zr-13Nb alloy substrate and its surface morphology ( Figure 4 ). It has been reported in the literature that the larger the diameter of the oxide nanotubes on titanium, the smaller the number of nanotubular structures that carry the load in the area of contact between the tested samples and the diamond indenter, as well as the easier the nanotubes deform and break [ 55 ]. From an application point of view, the SWNTs can compensate for the high hardness defect of the Ti-13Zr-13Nb alloy used as bone plates, avoid implant–bone stress mismatch, and reduce “stress shielding”.…”

Section: Resultsmentioning

confidence: 99%

Production and Characterization of the Third-Generation Oxide Nanotubes on Ti-13Zr-13Nb Alloy

et al. 2022

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In the group of vanadium-free titanium alloys used for applications for long-term implants, the Ti-13Zr-13Nb alloy has recently been proposed. The production of a porous layer of oxide nanotubes (ONTs) with a wide range of geometries and lengths on the Ti-13Zr-13Nb alloy surface can increase its osteoinductive properties and enable intelligent drug delivery. This work concerns developing a method of electrochemical modification of the Ti-13Zr-13Nb alloy surface to obtain third-generation ONTs. The effect of the anodizing voltage on the microstructure and thickness of the obtained oxide layers was conducted in 1 M C2H6O2 + 4 wt% NH4F electrolyte in the voltage range 5–35 V for 120 min at room temperature. The obtained third-generation ONTs were characterized using SEM, EDS, SKP, and 2D roughness profiles methods. The preliminary assessment of corrosion resistance carried out in accelerated corrosion tests in the artificial atmosphere showed the high quality of the newly developed ONTs and the slight influence of neutral salt spray on their micromechanical properties.

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Microstructure and properties of TiO2 nanotube coatings on bone plate surface fabrication by anodic oxidation

Cited by 31 publications

References 34 publications

Morphological and Structural Study of Anodized Titanium Grade 2, Using HCl in Aqueous Solution

Morphological and Structural Study of Anodized Titanium Grade 2, Using HCl in Aqueous Solution

Effects of Surface Pretreatment of Titanium Substrates on Properties of Electrophoretically Deposited Biopolymer Chitosan/Eudragit E 100 Coatings

Production and Characterization of the Third-Generation Oxide Nanotubes on Ti-13Zr-13Nb Alloy

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