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Characterisation of thermal barrier sensor coatings synthesised by sol–gel route

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Academic year: 2021

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Figure

Fig. 1. A schematic of the three different multi-layered coating samples where the doped layer is at the surface (left), in the middle (centre) and at the bond coat interface (right).
Fig. 4. The diffraction patterns of YSZ:Sm powder with increasing concentration of samarium (a) across the complete angular range and (b) covering only the 70–80 ◦ angular range.
Fig. 10. Phosphorescence emission spectrum of YSZ:Sm from a powder and coating sample, excited at 266 nm.
Fig. 13. The lifetime decay versus temperature for YSZ:Sm with 2 wt.% SmO 1.5 . The excitation and observation wavelength is 266 nm and 620 nm respectively.

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