Publications

An investigation on burner rig testing of environmental barrier coatings for aerospace applications

Bakan, E. and Mack, D.E. and Lobe, S. and Koch, D. and Vaßen, R.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume: Pages:
DOI: 10.1016/j.jeurceramsoc.2020.06.016
Published: 2020

Abstract
In this study, burner rig testing of Si/Yb2Si2O7 environmental barrier coating protected SiC-based ceramic matrix composites was conducted. Tests were performed at standard conditions as well as with liquid water injection to the flame. Furthermore, the influence of the impingement angle of the flame (45° vs. 90°) on water vapor corrosion was explored. Gas flow rates were adapted in each test to adjust 1250 °C at the sample surface. The comparison of test results showed that water injection advances the corrosion of the Yb2Si2O7 topcoat and the impingement angle affects the size and shape of the corroded area on the sample surface. © 2020 Elsevier Ltd

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