New Solid Solution and Phase Equilibria in the Subsolidus Area of the Three-Component CuO–V2O5–Ta2O5 Oxide System

Dąbrowska, G.; Filipek, E.; Tabero, P.

doi:10.3390/ma15010232

Cited by 6 publications

(1 citation statement)

References 46 publications

(54 reference statements)

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“…(b) High-temperature treatment (HTH) in a horizontal tube furnace PRC 50/170/M (Czylok, Jastrzębie-Zdrój, Poland) equipped with a stationary optical pyrometer MARATHON MM (Raytek, Wilmington, North Carolina, USA). Reagents weighed in suitable proportions were homogenized and calcined in the air atmosphere in the temperature range 1000-1500 • C. After each heating stage, the samples were gradually cooled in the furnace to room temperature by the method described, e.g., in [47][48][49][50].…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

Piz,

Filipek,

Klukowski

et al. 2023

Sustainability

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The main objective of this work was to experimentally confirm that a continuous, substitutional solid solution of a general formula Y1−xYbxVO4 is formed in the pseudo-binary system YVO4–YbVO4, and to investigate its basic unknown properties as a function of composition for 0.00 < x < 1.00. To date, such a solid solution has been obtained and characterized to a limited extent, but only for a few selected compositions. This solution was obtained by a high temperature and, for the first time, using mechanochemical methods. For the solution obtained by the high-energy ball-milling method, unknown physicochemical properties were established over its entire range of homogeneity. The solution was synthesized from mixtures of yttrium orthovanadate (V) with ytterbium (III) orthovanadate (V) of different compositions and investigated by XRD, IR, SEM, and UV-Vis(DRS) methods. It was found that Y1−xYbxVO4 crystallizes in a tetragonal system. The results confirmed that the solid solution Y1−xYbxVO4 has a structure of YVO4 and YbVO4, and its structure is composed of YbO6 and YO6 octahedrons and VO4 tetrahedrons. Moreover, if the parameter (x) in the solid solution Y1−xYbxVO4 increases, its crystalline lattice contracts and the value of the energy gap decreases. This solid solution is stable in the air atmosphere at least up to ~1500 °C. The estimated band gap for this solid solution indicates that it belongs to the semiconductors.

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Section: Methodsmentioning

confidence: 99%

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

Piz,

Filipek,

Klukowski

et al. 2023

Sustainability

Self Cite

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New FeVTaO6 compound—synthesis, structure and selected properties

Filipek,

Piz,

Dąbrowska

et al. 2023

J Mater Sci

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A new ceramic compound of the chemical formula FeVTaO6 was obtained in polycrystalline form, as a result of a high-temperature reaction between Fe2O3, Ta2O5 and VO2 mixed at the molar ratio 1:1:2 as well as in the reaction of equimolar mixture of FeTaO4 with VO2. The synthesis of this new compound has also been carried out by mechanochemical method realized by high-energy ball milling of some mixture of reactants. FeVTaO6, in both cases, was obtained under an atmosphere of deoxygenated argon. The new compound was characterized by XRD, DTA-TG, IR, SEM/EDX, TEM, XRF and UV–vis-DRS methods. Using X-ray powder diffraction, the lattice parameters of the unit cell and the parameters of the positioning of atoms (Rietveld analysis) were determined, and grain sizes were obtained on the basis of diffraction line broadening. The results showed that FeVTaO6 crystallizes in the tetragonal system with rutile-type structure. As shown in the DTA results, regardless of the synthesis method, FeVTaO6 is stable in argon atmosphere up to ~ 1225 °C and in air up to ~ 925 °C. Based on the UV–Vis-DR spectra, it was also established that the obtained compound is a semiconductor. The energy gap value determined for the compound obtained by the solid-state method is Eg ~ 1.75 eV, and for the compound obtained by the mechanochemical method Eg ~ 2.10 eV. Graphical abstract

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Subsolidus area of the MgO–P2O5–Cr2O3 system: Synthesis, properties and application of magnesium–chromium phosphates as colouring substances

Blonska-Tabero,

Bosacka,

Filipek

et al. 2024

J Therm Anal Calorim

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New Solid Solution and Phase Equilibria in the Subsolidus Area of the Three-Component CuO–V2O5–Ta2O5 Oxide System

Cited by 6 publications

References 46 publications

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

New FeVTaO6 compound—synthesis, structure and selected properties

Subsolidus area of the MgO–P2O5–Cr2O3 system: Synthesis, properties and application of magnesium–chromium phosphates as colouring substances

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