Phase composition of nanosized oxide film structures based on lanthanum and scandium doped HfO2
| Autor: | M. S. Lebedev, L. V. Yakovkina, Tamara P. Smirnova, V. O. Borisov |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Oxide Pyrochlore Analytical chemistry chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nanocrystalline material 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Phase (matter) Materials Chemistry engineering Lanthanum Scandium Physical and Theoretical Chemistry 0210 nano-technology Solid solution |
| Zdroj: | Journal of Structural Chemistry. 58:1573-1580 |
| ISSN: | 1573-8779 0022-4766 |
| Popis: | X-ray photoelectron spectroscopy, X-ray diffraction, and high-resolution transmission electron microscopy (over thickness profiling of the elemental and phase compositions of the samples) are used to investigate the elemental and phase compositions, structures, and microstructures of films synthesized in La–Hf–O and Sc–Hf–O systems from organometallic volatile compounds. The dependence of the phase compositions and microstructures of films on the concentration of a doping rare earth element is determined. It is found that lanthanum and scandium doping of hafnium oxide results in the formation of solid solutions of a hightemperature cubic modification. The conditions for obtaining the pyrochlore phase are determined in the nanocrystalline Hf–La–O system. |
| Databáze: | OpenAIRE |
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