Crystal Structure of the New Ordered Phases Based on Y2Ba3Fe3Co2O13 + δ
| Autor: | A. V. Bryuzgina, M. Yu. Mychinko, A. V. Dyakova, Vladimir A. Cherepanov, A.S. Urusova |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science General Chemical Engineering Homogeneity (statistics) Metals and Alloys 02 engineering and technology Le Bail method Crystal structure 021001 nanoscience & nanotechnology 01 natural sciences Inorganic Chemistry Crystallography Transmission electron microscopy Phase composition 0103 physical sciences Materials Chemistry 0210 nano-technology Perovskite (structure) |
| Zdroj: | Inorganic Materials. 56:72-76 |
| ISSN: | 1608-3172 0020-1685 |
| DOI: | 10.1134/s0020168520010161 |
| Popis: | New phases with an ordered structure of the composition Y2Ba3Fe5– yCoyO13 + δ (1.7 ≤ y ≤ 2.1) were obtained via the glycerol-nitrate technique. The regions of existence of two types of structures were determined by transmission electron microscopy: for 1.7 ≤ y ≤ 1.8, the structure described as ap × ap × 3ap, and for 1.9 ≤ y ≤ 2.1, it is ap × ap × 5ap, where ap is the parameter of the ideal cubic perovskite. The unit cell parameters for all single-phase samples were refined by the Le Bail method. The phase composition of oxides outside the homogeneity ranges is determined. |
| Databáze: | OpenAIRE |
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