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- Title
Combined Galvanostatic and Potentiostatic Plasma Electrolytic Oxidation of Titanium in Different Concentrations of H2SO4.
- Authors
Engelkamp, Bernd; El Achhab, Mhamed; Fischer, Björn; Kökçam-Demir, Ülkü; Schierbaum, Klaus
- Abstract
We report on plasma electrolytic oxidation of titanium, employing a technique with combined potentiostatic and galvanostatic control. The effect of different H 2 SO 4 electrolyte concentrations on the titanium oxide formation was studied sytematically. The titanium oxide consisted of two distinguishable layers. The upper layer is porous, up to few micrometers thick and primarily rutile, while the interlayer is compact, comparatively thin and is associated to anatase formation. The electrolyte concentration changed substantially layer thickness, porosity and phase composition, as deduced from scanning electron microscopy, X-ray diffraction and Raman spectroscopy.
- Subjects
GALVANOSTAT; POTENTIOSTAT; ELECTROLYTIC oxidation; TITANIUM; SULFURIC acid; PLASMA electrodes
- Publication
Metals (2075-4701), 2018, Vol 8, Issue 6, p386
- ISSN
2075-4701
- Publication type
Article
- DOI
10.3390/met8060386