A Mössbauer effect investigation of the formation of MnZn nanoferrite phase

In this paper, Mn0.5Zn0.5Fe2O4 nanopowders were prepared by mechanochemical processing of the mixture of two single phase ferrites, MnFe2O4 and ZnFe2O4. Room-temperature 57Fe Mössbauer spectroscopy was used to study the mechanically induced evolution of the ZnFe2O4/MnFe2O4 mixture submitted to the high-energy milling process. The Mössbauer spectrum of the ZnFe2O4/MnFe2O4 sample milled for 30 h revealed the presence of Mn0.5Zn0.5Fe2O4. The mean crystallite size of the mechanosynthesized mixed ferrite, estimated using Scherrer's formula, was found to be 14 nm.