Phase Relationship, Structure and Cationic Distribution of Oxides in the Mn<sub>3</sub>O<sub>4</sub>-Fe<sub>2</sub>O<sub>3</sub> System Synthesized at 1200 ℃
Abstract:A series of oxides in the Mn3O4-Fe2O3 system have been synthesized at 1200°C in air, followed by quenching to room temperature. Three solid solutions, Mn3-3xFe3xO4 (0.00£x£0.278), Mn3-3xFe3xO4(0.291£ x£0.667), and Mn2-2xFe2xO3 (0.89£x£1.00), have been identified by powder X-ray diffraction (XRD). Rietveld refinement of the XRD data show that the solids belong to the hausmannite phase with the space group I41/ amd, the spinel phase with the space group Fd3m, and the hematite phase with the space group R3c, resp… Show more
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