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Title: Degree of phase transformations in the conditions of polythermal synthesis of SrBaFeMoO6–δ
Authors: Kalanda, N.
Yarmolich, M.
Kutuzau, M.
Gurskii, A. L.
Maria do Rosario Teixeira Soares
Mindaugas Andrulevicius
Brigita Abakeviciene
Sigitas Tamulevicius
Гурский, А. Л.
Keywords: публикации ученых
Magnetic metal oxide compound
Double perovskite
Polythermal synthesis
Differential thermal analysis
Thermogravimetric analysis
Issue Date: 2020
Publisher: Elsevier, Великобритания
Citation: Degree of phase transformations in the conditions of polythermal synthesis of SrBaFeMoO6–δ / Kalanda N. [et al.] // Vacuum. – 2020. – Vol. 174(4). – P. 109196.
Abstract: The sequence of phase transformations during the crystallization of SrBaFeMoO6 –δ by the solid-phase technique from a stoichiometric mixture of simple oxides SrCO3 þ BaCO3 þ 0.5Fe2O3 þ MoO3 was studied. It has been established that the synthesis of barium – strontium ferromolybdate proceeds through a series of sequential - parallel stages. It was found that to minimize the effect of intermediate reaction products, it is necessary to use combined synthesis modes. As a result of using combined synthesis modes for annealing for 20 h and T ¼ 1443 K in vacuum of 10 5 Torr at the pressure of residual oxygen gas 10 8 Pa, it was possible to obtain a single-phase barium – strontium ferromolybdate compound with superstructural ordering of iron and molybdenum cations.
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