Galvanostatic anodization of titanium—I. Structures and compositions of the anodic films

Delplancke, Jean‐Luc; Winand, René

doi:10.1016/0013-4686(88)80223-8

Cited by 144 publications

(96 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…to allow them to completely selforganize), this variation shows that the grain structure slightly influences also the nanotube diameter. It is known from literature, that the thickness of anodic TiO2 films is directly proportional to the applied voltage [1][2][3][4][5][6]. The same rule also applies for the nanotube diameter vs. voltage used for the nanotube growth [9,22,23].…”

Section: Resultsmentioning

confidence: 82%

Influence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolytes

Macák

Jarošová

Jäger

et al. 2016

Applied Surface Science

View full text Add to dashboard Cite

The relationship between the microstructure of Ti substrates and the anodic growth of selforganized TiO2 nanotube layers obtained upon their anodization in the ethylene glycol based electrolytes on these substrates is reported for the first time. Polished Ti sheets with mirror-like surface as well as unpolished Ti foils were considered in this work. Grains with a wide range of crystallographic orientations and sizes were revealed by Electron Backscatter Diffraction (EBSD) and correlated with nanotube growth on both types of substrates. A preferred grain orientation with (0001) axis perpendicular to the surface was observed on all substrates. Surfaces of all substrates were anodized for 18 hours in ethylene glycol electrolytes containing 88 mM NH4F and 1.5% water and thoroughly inspected by SEM. By a precise comparison of Ti substrates before and after anodization, the uniformity of produced self-organized TiO2 nanotube layers was evaluated in regard to the specific orientation of individual grains. Grains with (0001) axis perpendicular to the surface turned out to be the most growth-promoting orientation on polished substrates. No orientation was found to be strictly growth-retarding, but sufficient This postprint version is available from http://hdl.handle.net/10195/61977 Publisher's version is available from http://www.sciencedirect.com/science/article/pii/S0169433216304482 DOI: 10.1016DOI: 10. /j.apsusc.2016 This document is licenced under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0.International. ______________________________________________________________________________________________________ 2 anodization time (24 hours) was needed to obtain uniform nanotube layers on all grains without remnant porous initial oxide. In contrast with polished Ti sheets, no specific orientation was found to significantly promote or retard the nanotube growth in the case of unpolished Ti foils.Finally, the difference between the average nanotube diameters of nanotubes grown on various grains was investigated showing non-negligible differences in the diameter for different grain orientations and substrates.

show abstract

Section: Resultsmentioning

confidence: 82%

Influence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolytes

Macák

Jarošová

Jäger

et al. 2016

Applied Surface Science

View full text Add to dashboard Cite

show abstract

“…(The explanation for the electrochemical processes involved in anodization can be found in several works (48)(49)(50)(79)(80)(81)(82)(83)(84).) The anodic oxide film growth is a two-stage process that results in either a thin or thick titanium oxide film: up to 160 V of applied voltage drop in the electrochemical cell, a linear growth in the nanometric range of the TiO 2 film is achieved (50); when anodization is carried out at higher voltages, an increased gas evolution and often sparking are obtained, resulting in titanium oxide films up to tenth µm thickness.…”

Section: Anodic Oxidationmentioning

confidence: 99%

Titanium Oxide Antibacterial Surfaces in Biomedical Devices

et al. 2011

View full text Add to dashboard Cite

Int J Artif Organs ( 2011; : 9) 929-946 34 TITANIUM OXIDE AND ANTIBACTERIAL SURFACES IN BIOMEDICAL DEVICES Device-related infections: a clinical demand driving material science researchAn increasing number of clinical procedures requires the use of biomedical devices, whose widespread presence in modern therapeutic treatments is driving the demand for better performances and longer reliability. One of the major issues of both short-term devices and implantable prostheses is represented by device-related infections (DRIs) Accepted: August 31, 2011 rEViEW due to bacterial colonization and proliferation (1). About half of the 2 million cases of nosocomial infections that occur each year in the United States are associated with indwelling devices (2): these infections generally require a longer period of antibiotic therapy and repeated surgical procedures, resulting in potential risks for the patient and increased costs for the healthcare system. The planktonic bacteria that colonize a device surface tend to form a biofilm and the sessile bacterial cells, enclosed in a self-produced polymeric matrix of this kind, can withstand host immune responses and generally show extraordinary antibiotic resistance (3). Eventually, bacteria rapid multiply and disperse in planktonic form, giving rise

show abstract

“…Oxygen generated at the anodic surface then combines with the titanium to form titanium oxide. As the oxide thickens it increasingly acts as an electrical insulator between the electrolyte and the anode until the point where there are too few OH-ions available to support further growth, The oxide thickness at which this occurs is primarily a function of the applied voltage but there have been a large number of studies on the properties of the oxide films [13][14][15][16], which have showed that the composition and microstructure of the anodic oxides are also strongly dependent on other factors such as electrolyte concentration, temperature and anodic surface conditions [17]. This means there are a lot of variables to control for an artist.…”

Section: Introductionmentioning

confidence: 99%

Laser surface colouring of titanium for contemporary jewellery

O’Hana¹,

Pinkerton²,

Shoba³

et al. 2008

Surface Engineering

View full text Add to dashboard Cite

This paper describes work which emerged through a need to understand more about the potential of laser surface engineering for use in the creative industries. The method of creation of contemporary jewellery pieces and the resultant 'Ocular' jewellery series are described from the points of view of an artist and an engineer. The work demonstrates how laser controlled oxide growth on commercially pure titanium under ambient conditions can be used as an artistic tool by producing even, defined colours or by reproducing a simulation of freehand drawings on a titanium surface. It also asks the question: how different are artists from scientists and engineers?

show abstract

Galvanostatic anodization of titanium—I. Structures and compositions of the anodic films

Cited by 144 publications

References 22 publications

Influence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolytes

Influence of the Ti microstructure on anodic self-organized TiO2 nanotube layers produced in ethylene glycol electrolytes

Titanium Oxide Antibacterial Surfaces in Biomedical Devices

Laser surface colouring of titanium for contemporary jewellery

Contact Info

Product

Resources

About