Abstract
The amorphous fluoride FeF3,xHF (0.4≲×≲1) synthetized by a soft chemistry reaction, crystallizes to R-FeF3. Crystallization was followed as a function of time at several constant temperatures by Mössbauer spectroscopy. The evolution of R-FeF3 rate is in good agreement with a Johnson-Mehl-Avrami transformation equation: The crystallization proceeds like a first-order reaction with an activation energy of ≈2 eV.
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Greneche, J.M., Leblanc, M., Varret, F. et al. Mössbauer study of isothermal crystallization kinetics of the amorphous iron III fluoride FeF3, 0.4HF. Hyperfine Interact 27, 317–320 (1986). https://doi.org/10.1007/BF02354770
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DOI: https://doi.org/10.1007/BF02354770