Anion-deficient perovskite-like Ba3SmFe2O7.5 was prepared using a glycerol–nitrate synthesis. Using high-temperature X-ray diffraction in situ a crystal structure transition temperature range 800 and 840 °C was established. These results were further confirmed by high-temperature dilatometric analysis. The average thermal expansion coefficient (TEC) of Ba3SmFe2O7.5 is about 12.8 × 10−6 K−1 between 25 °C and 800 °C. Magnetic experiments proved an excellent phase purity of the oxide and reveal that Fe3+ ions stay in high and intermediate spin states in a ratio of 75% and 25% respectively.
Original languageEnglish
Pages (from-to)15237-15241
Number of pages5
JournalCeramics International
Issue number10
Publication statusPublished - 1 May 2023

    ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology

    WoS ResearchAreas Categories

  • Materials Science, Ceramics

ID: 37134094