*Member, The American Ceramic Society.
Eu3+-Doped YPO4 Self-Monitoring Environmental Barrier Coating
Article first published online: 3 MAY 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 10, pages 3449–3454, October 2011
How to Cite
Liu, W., Wang, Y. and Cheng, L. (2011), Eu3+-Doped YPO4 Self-Monitoring Environmental Barrier Coating. Journal of the American Ceramic Society, 94: 3449–3454. doi: 10.1111/j.1551-2916.2011.04584.x
J. Smialek—contributing editor
This work was financially supported by the Chinese Natural Science Foundation (Grant #51032006), the Research Fund of State Key Laboratory of Solidification Processing (Grant #56-TZ-2010), and partially supported by the Project “111” (B08040).
- Issue published online: 4 OCT 2011
- Article first published online: 3 MAY 2011
- Manuscript No. 28482. Received August 17, 2010; approved March 27, 2011.
Luminescence of europium-doped yttrium phosphate (YPO4:Eu) environmental barrier coatings (EBCs) has been developed as a means of self-monitoring. The corrosion behavior of YPO4:Eu in water vapor and molten salt is investigated as well as the effect of these corrosion environments on the intensity of luminescence. By comparison of these results, the relationship between the extent of corrosion of YPO4 and the change in luminescence intensity ratio is determined. Preliminary data suggest that the YPO4:Eu can monitor the microstructural damages including structural perturbations, phase changes and chemical reactions. The results also indicate that the intensity ratio from luminescence spectra can be used as nondestructive evaluation technology for EBCs.