Magnetic and structural properties of pure hematite submitted to mechanical milling in air and ethanol
LC Sánchez, JD Arboleda, C Saragovi… - Physica B: Condensed …, 2007 - Elsevier
The mechanochemical treatment of α-Fe2O3 (hematite) powder in air and in ethanol at
different times using a planetary ball mill was performed. X-ray diffraction (XRD) using
Rietveld analysis and Mössbauer spectrometry showed partial transformation from α-Fe2O3
to a spinel phase for prolonged milling times in air, while only the α-Fe2O3 phase was
obtained at all milling times using ethanol. Best XRD and Mössbauer fits were obtained by
introducing two hematite components, one of them assigned to the precursor sample, and …
different times using a planetary ball mill was performed. X-ray diffraction (XRD) using
Rietveld analysis and Mössbauer spectrometry showed partial transformation from α-Fe2O3
to a spinel phase for prolonged milling times in air, while only the α-Fe2O3 phase was
obtained at all milling times using ethanol. Best XRD and Mössbauer fits were obtained by
introducing two hematite components, one of them assigned to the precursor sample, and …
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