Regensburg 2019 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 20: Poster session II
MM 20.13: Poster
Tuesday, April 2, 2019, 18:30–20:00, Poster C
Porous titanium oxide produced by plasma electrolytic oxidation in DC operation mode and various electrolyte concentrations — •Bernd Engelkamp, Mhamed El Achhab, and Klaus Schierbaum — Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
Titanium oxide coatings produced by Plasma Electrolytic Oxidation (PEO) are of increasing scientific and commercial interest [1]. Prominent fields of applications are biomedical components and photocatalytic devices. Recent investigations revealed the potential for gas sensor technology [2]. The versatile character of PEO-produced coatings on titanium is due to the enormous scope of tailoring the coatings by using different process parameters. Many parameters serve as control levers, however, the most important are the electrical supply and the composition of the electrolyte. In our investigation we focus on the DC operation mode and the concentration of H2SO4 electrolyte [3]. We present layer thickness, porosity and phase composition (i.e. anatase and rutile ratio) of PEO-produced titanium oxide deduced from scanning electron microscopy, X-ray diffraction and Raman spectroscopy.
[1] T. W. Clyne and S. T. Troughton, Int. Mater. Rev. 63, 1 (2018)
[2] M. El Achhab and K. Schierbaum, J. Sens. Sens. Syst. 5, 273 (2016)
[3] B. Engelkamp et al., Metals 8, 386 (2018)