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Measurement of residual stress in air plasma-sprayed Y2O3–ZrO2 thermal barrier coating system using micro-Raman spectroscopy

✍ Scribed by M. Tanaka; M. Hasegawa; A.F. Dericioglu; Y. Kagawa


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
481 KB
Volume
419
Category
Article
ISSN
0921-5093

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By using specially designed freestanding 8 wt.% Y 2 O 3 stabilized ZrO 2 (8YSZ) specimens, a linear relationship is found between the Raman peak shift, Δω, and applied uniaxial compressive stress, σ̅ u , i.e., Δω = Π u σ̅ u with Π u being the piezo-spectroscopic coefficient. The linear relationship