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Erosion and high temperature oxidation resistance of new coatings fabricated by a sol-gel route for a TBC application

Viazzi, Céline and Wellman , Richard and Oquab, Djar and Nicholls, John and Monceau, Daniel and Bonino, Jean-Pierre and Ansart, Florence Erosion and high temperature oxidation resistance of new coatings fabricated by a sol-gel route for a TBC application. (2008) In: 7th International Symposium on High Temperature Corrosion and Protection of Materials, 2008 (Les Embiez, France).

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.595-598.3

Abstract

This paper examines the erosion and cyclic oxidation performance of novel thermal barrier coatings produced via the sol-gel route. The ceramic top coat, with a thickness of 5-80 m, was deposited via a sol-gel route onto standard MCrAlY and PtAl bond coats. In both the erosion and the cyclic oxidation tests it was found that the bond coat had a profound affect on the results. The erosion of the sol-gel coatings were compared to standard EB PVD and PS TBCs and were found to be significantly higher. The effect of aging (100 h at 1100°C) on the erosion rates was also evaluated and was found to increase the erosion rates. The information obtained from the erosion and cyclic oxidation tests have highlighted the need to develop and optimise the parameters for producing thicker coatings.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to Trans Tech Publications editor. The definitive version is available at http://www.scientific.net The original PDF of the article can be found at Materials Science Forum website : http://www.scientific.net/MSF/
Audience (journal):International peer-reviewed journal
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Cranfield University (UNITED KINGDOM)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
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Deposited By:Celine Cabaup

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