Constrained sintering and thermal ageing behaviour of electrophoretically deposited Yb2Si2O7 environmental barrier coating

Yilmaz, Esma; Paksoy, Ahmet Hilmi; Gibson, Grant J.; Xiao, Ping

doi:10.1016/j.jeurceramsoc.2023.06.025

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…As EBC top coat grain boundaries are pathways for both steam permeation (Wada et al, 2017;Kitaoka et al, 2018;Matsudaira et al, 2021) and CMAS infiltration (Sternlicht et al, 2022b), determining the grain size can provide a measure of the EBC's corrosion resistance. Additionally, measuring grain size can evaluate grain coarsening during thermal exposure (Yilmaz et al, 2023), or understand the effect of secondary phases pinning grain boundaries (Paksoy and Xiao, 2021). For this measurement of grain size, electron backscattered diffraction (EBSD) (Humphreys, 2001) or image processing of SEM micrographs are standard methods (ASTM International, 2021b).…”

Section: Top Coatmentioning

confidence: 99%

Characterisation techniques for investigating TBC and EBC failure: a review

Scotson,

Paksoy,

Xiao

2024

Front. Ceram.

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Materials characterisation plays a crucial role in developing thermal barrier coatings and environmental barrier coatings for gas-turbine engines. The failure of thermal barrier coatings and environmental barrier coatings is influenced by a complex interdependence of microstructure, residual stress, and thermomechanical properties. Validating our mechanistic understanding of each of these factors that contribute to failure requires a selection of suitable characterisation techniques. Presented in this review are characterisation techniques, both ex situ and in situ, that have advanced the understanding of thermal barrier coating and environmental barrier coating failure. Targeted coating development that is both effective and efficient depends on these characterisation techniques to obtain superior coatings with improved performance and lifetime.

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