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Corrosion of anodic TiO coatings on Ti-6Al-4V in simulated body fluid
Suresh Krishnamoorthy Seshadri
Published in
2008
PMID: 17975823
Volume: 86
   
Issue: 2
Pages: 502 - 509
Abstract
Anodic TiO coatings were produced on Ti-6Al-4V substrates using aqueous electrolytes containing dissolved calcium and phosphorus. Two baths containing Ca and P compounds, in the molar ratios 5 and 15 were used. Different coatings were produced by electrolysis for 3 and 10 h at a constant current density of 10 mA/cm2. X-ray diffraction and X-ray fluorescence were used to identify the phases and chemical composition respectively. Thickness of the coatings was measured using ellipsometry. Electrochemical polarization and AC impedance studies were performed on the coatings by exposing them to simulated body fluid (SBF) for a period of 1 week. The coating produced by 10-h electrolysis from bath of Ca/P ratio 15 showed low corrosion current and high impedance to the week-long attack of SBF. © 2007 Wiley Periodicals, Inc.
About the journal
JournalJournal of Biomedical Materials Research - Part A
ISSN15493296
Open AccessNo
Concepts (39)
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    Arsenic compounds
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    Calcium
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    Current density
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    Dissolution
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    Nonmetals
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    Phosphorus
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    Titanium alloys
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    AQUEOUS ELECTROLYTES
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    CONSTANT CURRENT DENSITY
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    Molar ratios
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    Simulated body fluid (sbf)
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    Ti-6al-4v
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    TWO BATHS
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    Aluminum
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    Electrolyte
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    Titanium
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    Titanium dioxide
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    Vanadium
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    Aqueous solution
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    Article
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    Body fluid
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    Chemical composition
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    Corrosion
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    Electrochemistry
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    Electrolysis
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    Ellipsometry
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    Impedance
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    Material coating
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    Polarization
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    Simulated body fluid
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    Simulation
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    Thickness
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    X ray diffraction
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    X ray fluorescence
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    Body fluids
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    Coated materials, biocompatible
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    Durapatite
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    Humans
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    Materials testing