Crystal Structure of Solid Solutions in the Sm 2 O 3 –CaO–MO and Ln 2 O 3 –SrO–MO Systems (Ln = Sm, Gd; M = Fe, Co)

作者: L. V. Khvostova , A. P. Galayda , A. V. Maklakova , A. S. Baten’kova , A. A. Startseva

DOI: 10.1134/S0020168519080041

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摘要: Complex oxides in the Sm2O3–CaO–MO and Ln2O3–SrO–MO systems (Ln = Sm, Gd; M Fe, Co) were prepared via glycerol-nitrate technique at 1100°С air. The homogeneity ranges for solid solutions determined as follows: Sr1 – хGdхCoO3 – δ (0.1 ≤ х 0.4); Sr2 – yGdyCoO4 – δ (0.8 y 1.2); Sr1 – хGdхFeO3 – δ (0.05 0.30 0.80 1.0); Ca1 – xSmxFeO3 – δ (0.70 x Sr2 – ySmyFeO4 – δ (0.7 0.8); Sr2 – yGdyFeO4 – δ (0.75 Ca2 – уSmуFeO4 – δ (у 0.90); Sr3 – zSmzFe2O7 – δ (0 z 0.3 1.8); Sr3 – zGdzFe2O7 – 1.9). For all single phase oxides, crystal structure was unit cell parameters, volume, structural parameters refined.

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