Phase equilibria in the YFeO3 – YСoO3 system in air
| Autor: | Vladimir A. Cherepanov, A.S. Urusova, A. V. Bryuzgina, I. L. Ivanov |
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| Přispěvatelé: | Ministry of Science and Higher Education of Russian Federation (№ АААА-А20-120061990010-7), stipend for young scientists and PhD students from the President of Russian Federation (№ SP-3689.2019.1) |
| Rok vydání: | 2021 |
| Předmět: |
perovskite crystal structure
Materials science Spin states solid solutions phase diagram General Chemical Engineering Thermal decomposition Analytical chemistry SOLID SOLUTIONS General Chemistry PHASE DIAGRAM Atmospheric temperature range Chemistry Phase (matter) Materials Chemistry PEROVSKITE CRYSTAL STRUCTURE Orthorhombic crystal system Ternary operation QD1-999 Phase diagram Solid solution |
| Zdroj: | Chimica Techno Acta, Vol 8, Iss 1 (2021) Chimica Techno Acta; Том 8, № 1 (2021): PCEE-2020 Special Issue; 20218108 |
| ISSN: | 2411-1414 |
| DOI: | 10.15826/chimtech.2021.8.1.08 |
| Popis: | Received: 14.03.2021. Revised: 10.04.2021. Accepted: 11.04.2021. Available online: 13.04.2021. YFe1-xСоxO3 solid solutions were prepared by glycerol-nitrate technique. The homogeneity range of solid solutions was studied within the temperature range 1173 – 1573 K. A continues series of solid solution below the decomposition temperature of YСоO3, which was shown to be equal to 1266 + 6 K, begins to narrow at higher temperatures and becomes equal to 0 ≤ x ≤ 0.1 at 1573 K. The phase diagram of the YFeO3 – YСoO3 system in the “T – composition” coordinates was divided into three fields. Similar to the parent ternary oxides, all single-phase YFe1-xСоxO3 solid solutions possess orthorhombically distorted perovskite structure (Pnma space group). Unusual behavior of orthorhombic distortions in YFe1-xСоxO3 with temperature was explained by probable changes in spin state of Co3+ ions. This work was supported in parts by the Ministry of Sci-ence and Higher Education of Russian Federation (№ АААА-А20-120061990010-7) and A.V.B. was supported with a stipend for young scientists and PhD students from the President of Russian Federation (№ SP-3689.2019.1). |
| Databáze: | OpenAIRE |
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