Eu3+-Doped YPO4 self-monitoring environmental barrier coating

Wen Liu; Yiguang Wang; Laifei Cheng

doi:10.1111/j.1551-2916.2011.04584.x

Eu³⁺-Doped YPO₄ self-monitoring environmental barrier coating

Wen Liu, Yiguang Wang^*, Laifei Cheng

^*Corresponding author for this work

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3449-3454
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	94
Issue number	10
DOIs	https://doi.org/10.1111/j.1551-2916.2011.04584.x
Publication status	Published - Oct 2011
Externally published	Yes

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10.1111/j.1551-2916.2011.04584.x

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title = "Eu3+-Doped YPO4 self-monitoring environmental barrier coating",

abstract = "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.",

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AU - Liu, Wen

AU - Wang, Yiguang

AU - Cheng, Laifei

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N2 - 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.

AB - 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.

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EP - 3454

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 10

ER -

Eu³⁺-Doped YPO₄ self-monitoring environmental barrier coating

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