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Measured and Rietveld calculated 111 and 002 perovskite peaks. In comparison, the analysis of ceramics from solid state synthesis at 800 °C—4 h with sintering at 970 °C—5 h and from the Pechini route at 600 °C—4 h with sintering at 1080 °C—2.5 h. For both types of materials, the studied samples are: (a) as-sintered, non-poled; (b) poled; and (c) poled and, afterwards, powdered samples.
