Morphological Characteristics of Hydrothermally Synthesized Iron Trifluorides with Various Hydration Degrees

  • V. V. Moklyak G.V. Kurdyumov Institute for Metal Physics, Nat. Acad. of Sci. of Ukraine
  • V. O. Kotsyubynsky Vasyl Stefanyk Precarpathian National University
  • I. P. Yaremiy Vasyl Stefanyk Precarpathian National University
  • P. I. Kolkovskyy Joint Scientific and Research Laboratory of the Physics of Magnetic Films, G.V. Kurdyumov Institute for Metal Physics, Nat. Acad. of Sci. of Ukraine, Vasyl Stefanyk Precarpathian National University
  • A. B. Hrubyak Vasyl Stefanyk Precarpathian National University
  • L. Z. Zbihley G.V. Kurdyumov Institute for Metal Physics, Nat. Acad. of Sci. of Ukraine
Keywords: iron trifluoride, dehydration, morphological properties, M¨ossbauer spectroscopy, thermogravimetric analysis, superparamagnetic state

Abstract

The crystalline and magnetic microstructures and the morphological features of B-FeF3 3H2O, HTB-FeF30.33H2O, and r-FeF3 iron fluorides hydrothermally synthesized and annealed in the argon atmosphere have been studied. The dehydration process of plate-like B-FeF33H2O particles is studied in detail, and the model for corresponding structural modifications is proposed. The developed model is used to synthesize ultradispersed HTB-FeF30.33H2O and r-FeF3 materials. The r-FeF3 phase is found to be partially in the superparamagnetic state, with the particle size being comparable with the average size of coherent scattering regions.

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Published
2019-01-04
How to Cite
Moklyak, V., Kotsyubynsky, V., Yaremiy, I., Kolkovskyy, P., Hrubyak, A., & Zbihley, L. (2019). Morphological Characteristics of Hydrothermally Synthesized Iron Trifluorides with Various Hydration Degrees. Ukrainian Journal of Physics, 61(11), 1017. https://doi.org/10.15407/ujpe61.11.1017
Section
Nanosystems