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High Temperature Corrosion Studies of a Zirconia Coating: Implications for Waste-to-Energy (WTE) Plants

Section for Mineralogy, Petrology and Geochemistry, Department for Earth and Environmental Sciences, Ludwig-Maximilians-Universität München, Theresienstrasse 41, 80333 Munich, Germany
Fraunhofer UMSICHT, An der Maxhütte 1, 92237 Sulzbach-Rosenberg, Germany
MARTIN GmbH für Umwelt- und Energietechnik, Leopoldstrasse 248, 80807 Munich, Germany
Zweckverband Müllverwertung Schwandorf, Alustrasse 7, 92421 Schwandorf, Germany
Deutsche Edelstahlwerke GmbH, Sonderwerkstoffe, Entwicklung und Innovation, Oberschlesienstrasse 16, 47807 Krefeld, Germany
Rohrwerk Maxhütte GmbH, Franz-Kunze-Straße 1, 92237 Sulzbach-Rosenberg, Germany
Author to whom correspondence should be addressed.
Academic Editor: Antonella Rossi
Coatings 2016, 6(3), 36;
Received: 12 July 2016 / Revised: 10 August 2016 / Accepted: 22 August 2016 / Published: 25 August 2016
PDF [3178 KB, uploaded 25 August 2016]


Corrosion of functional parts within waste-to-energy (WTE) plants significantly reduces their efficiency with respect to maintenance costs. Currently, nickel-based alloy claddings, several millimeters thick, are the state of the art as anti-corrosion coating. Another approach is to utilize thermally sprayed multilayer coatings with a zirconia top-coat. Lab-scale experiments under simulated WTE plant conditions and in situ tests within a WTE plant revealed a partially reduced porosity of the zirconia top-coat after the experiments, enabling the coating to act as a barrier against aggressive gases. In a lab-scale experiment sample the pores are filled up with zirconia, while the pores of the in situ samples are filled up with newly formed metal (Cr, Ni, Fe) oxides. View Full-Text
Keywords: corrosion; zirconia; coating; waste-to-energy; degradation; active oxidation corrosion; zirconia; coating; waste-to-energy; degradation; active oxidation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Müller, D.; Wöllmer, S.; Aßbichler, D.; Murer, M.J.; Heuss-Aßbichler, S.; Rieger, K.; Hill, H.; Härtel, C.; Masset, P.J. High Temperature Corrosion Studies of a Zirconia Coating: Implications for Waste-to-Energy (WTE) Plants. Coatings 2016, 6, 36.

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