Phase relations in the SrO – GdO1.5 – FeO1.5 system

  • Kairat M. Kenges Center of Physical-Chemical Methods of Research and Analysis, Al-Farabi Kazakh National University, Almaty, Kazakhstan
  • V. F. Popova I.V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, 199155, Adm. Makarova emb., 2, St. Petersburg, Russia
  • E. A. Тugova Ioffe Institute, 26 Politekhnicheskaya, St Petersburg 194021, Russia
DOI: https://doi.org/10.15328/cb1335
Keywords: SrO – GdO1.5 – FeO1.5 system, phase relations, rare-earth ferrites

Abstract

The lack of data systematization on the coexistence and stability of compounds formed in the SrO – GdO1.5 – FeO1.5 system at temperatures above 1100°C determines the interest in a more detailed study of this system. The interaction of components in the SrO – GdO1.5 – FeO1.5 system was studied by the method of annealing and quenching followed by physicochemical analysis.

Phase relations results in the SrO – GdO1.5 – FeO1.5 system in air were systematized. The formation of three complex perovskite-like oxides GdSr2FeO5, GdSrFeO4, Gd2SrFe2O7, located on the GdFeO3 – SrO binary section was established. Data on thermal stability of complex gadolinium ferrites based on GdO1.5 – SrO – FeO1.5 system has been expanded.

 

 

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Published
2023-09-11
How to Cite
Kenges, K., Popova, V., & ТugovaE. (2023). Phase relations in the SrO – GdO1.5 – FeO1.5 system. Chemical Bulletin of Kazakh National University, 109(2-3). https://doi.org/https://doi.org/10.15328/cb1335
Issue
Vol 109 No 2-3 (2023): Chemical Bulletin of Kazakh National University (In Progress)
Section
Physical Chemistry and Electrochemistry
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