Electrochemical and optical properties of anodic oxide films on titanium

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Journal of the Electrochemical Society; (USA)

DOI:https://doi.org/10.1149/1.2097244· OSTI ID:5302001

Ord, J L; DeSmet, D J; Beckstead, D J ^[1]

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1. Waterloo Univ., ON (Canada). Dept. of Physics

Ellipsometric and electrochemical techniques are used to study the anodic oxidation of titanium in aqueous and non-aqueous electrolytes. Transparent oxide films with a refractive index of 2.48 grown on electro polished surfaces exhibit ideal valve-metal behavior up to a thickness of approximately 30 nm. Beyond this thickness the refractive index and low-frequency dielectric constant of the film both decrease, but thicknesses of 100 nm can be achieved prior to complete breakdown under suitable experimental conditions. Open-circuit transients are used to determine the relation between the current density and the electric field in the oxide film.

• OSTI ID: 5302001
• Journal Information: Journal of the Electrochemical Society; (USA), Vol. 136:8; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
THIN FILMS
OPTICAL PROPERTIES
TITANIUM OXIDES
PROTECTIVE COATINGS
ANODES
AQUEOUS SOLUTIONS
CORROSIVE EFFECTS
CURRENT DENSITY
ELECTRIC FIELDS
ELECTROCHEMISTRY
ELECTROLYTES
ELLIPSOMETRY
HYDROGEN
OXIDATION
REFRACTIVITY
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
COATINGS
DISPERSIONS
ELECTRODES
ELEMENTS
FILMS
MEASURING METHODS
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
400400 - Electrochemistry
360205 - Ceramics
Cermets
& Refractories- Corrosion & Erosion