The phase equilibria in the 1 / 2 Sm 2 O 3 -SrO-CoO system were systematically studied at 1100°C in air. Single-phase Sr 1-x Sm x CoO 3-δ and Sr 2-y Sm y CoO 4+δ solid solutions were obtained within the ranges of 0.05 ≤ x ≤ 0.50 and 0.9 ≤ y ≤ 1.3, respectively. XRD patterns of the single-phase samples were refined by the Rietveld method within the tetragonal structure (space group I4/mmm). Gradual substitution of strontium by samarium leads to a decrease of the unit-cell parameters and the unit-cell volume that can be explained by the size factor.

No abstract

No abstract

No abstract

No abstract