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A new silver iodide borate Ag3B6O10I, is a promising material as a solid-state electrolyte, with a δ ↔ γ ↔ β ↔ α cascade of the isosymmetric superionic phase transitions....

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The ramsdellite-type phases crystallizing in the Li 2 O-Fe 2 O 3 -TiO 2 system in the course of synthesis in gaseous media at different oxygen partial pressures are studied. Solid solutions based on the ramsdellite structure with the composition Li 2 Ti 3x Fe x O 7 -δ (0 ≤ x ≤ 0.7) are prepared in an oxidizing medium ( = 1 atm) for the first time. Analysis of the results obtained by electron paramagnetic resonance and Mössbauer spectroscopy revealed that, in these solid solutions, all iron ions are in the oxidation state Fe +3 .

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