Статья

Crystal Structure and Concentration-Driven Phase Transitions in Lu(1−x)ScxFeO3 (0 ≤ x ≤ 1) Prepared by the Sol–Gel Method

Andrius PakalniškisInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, LithuaniaDenis AlikinDepartment of Physics & CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, PortugalA. P. TuryginSchool of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, RussiaА. L. ZhaludkevichScientific-Practical Materials Research Centre of NAS of Belarus, 220072 Minsk, BelarusMaxim V. SilibinInstitute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, RussiaD.V. ZhaludkevichScientific-Practical Materials Research Centre of NAS of Belarus, 220072 Minsk, BelarusGediminas NiauraDepartment of Organic Chemistry, Center for Physical Sciences and Technology (FTMC), Sauletekio Ave. 3, LT-10257 Vilnius, LithuaniaAleksej ŽarkovInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, LithuaniaRamūnas SkaudžiusInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, LithuaniaD. V. KarpinskyDepartment of Materials Science and Physical Chemistry of Materials, South Ural State University, Av. Lenina, 76, 454080 Chelyabinsk, RussiaAivaras KareivaInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania

2022en

ABI

Аннотация

The structural state and crystal structure of Lu(1−x)ScxFeO3 (0 ≤ x ≤ 1) compounds prepared by a chemical route based on a modified sol–gel method were investigated using X-ray diffraction, Raman spectroscopy, as well as scanning electron microscopy. It was observed that chemical doping with Sc ions led to a structural phase transition from the orthorhombic structure to the hexagonal structure via a wide two-phase concentration region of 0.1 < x < 0.45. An increase in scandium content above 80 mole% led to the stabilization of the non-perovskite bixbyite phase specific for the compound ScFeO3. The concentration stability of the different structural phases, as well as grain morphology, were studied depending on the chemical composition and synthesis conditions. Based on the data obtained for the analyzed samples, a composition-dependent phase diagram was constructed.

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Идентификаторы

DOI: 10.3390/ma15031048

Цитирования и источники

Цитирований: 3Использованных источников: 0

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