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Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings

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Academic year: 2021

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Fig. 2. Procedure of the sol–gel synthesis for doped zirconia powders.
Fig. 3. XRD patterns of doped zirconia powders calcined at 950 °C. Nomenclature:
Fig. 4. SEM micrographs of the (RE-Y) zirconia powders calcined at 950 °C: (a) YSZ powder — (b) influence of the doping content on the microstructure of LZ powders — (c) influence of the nature of the doping on the microstructure of RE zirconia powders.
Fig. 4 presents the different morphologies of the rare earth zirconia powders after heat treatment at 950 °C
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