Exploration of Phase Equilibria in the Triple Molybdate System, Electrical Properties of New Rb5M1/3Zr5/3(MoO4)6 (M-Ag, Na) Phases
| Autor: | Jibzema G. Bazarova, S. G. Dorzhieva, Bair G. Bazarov |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Arrhenius equation
Phase transition Materials science Orders of magnitude (temperature) Metals and Alloys Analytical chemistry Dielectric Molybdate Conductivity Condensed Matter Physics Dielectric spectroscopy chemistry.chemical_compound symbols.namesake chemistry Phase (matter) Materials Chemistry symbols |
| Zdroj: | Journal of Phase Equilibria and Diffusion. 42:824-830 |
| ISSN: | 1863-7345 1547-7037 |
| DOI: | 10.1007/s11669-021-00927-4 |
| Popis: | The formation of Rb5Ag1/3Zr5/3(MoO4)6 compound during the study of Rb2MoO4-Ag2MoO4-Zr(MoO4)2 system by x-ray diffraction technique was established. Its unit cell parameters, phase transition were determined. The dimensions of trigonal unit cell Rb5Ag1/3Zr5/3(MoO4)6 are a = 10.7235 (3), c = 38.548 (1), V = 3838.9 (3). Temperature and frequency dependences of dielectric parameters for Rb5M1/3Zr5/3(MoO4)6 (M-Ag, Na) ceramics were measured by impedance spectroscopy in the temperature and the frequency range 300-773 K and 1 Hz-10 kHz, respectively. The correlation of dielectric and thermal parameters in the high-temperature region near the phase transition was revealed. Arrhenius plots of the conductivity showed anomalies at high temperatures (723-773 K), increasing several orders of magnitude to 10−3 S K/cm. |
| Databáze: | OpenAIRE |
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