Manganese ferrite synthesized from Mn(II) acetate + hematite freeze-dried powders

Freeze-drying was used to obtain a homogeneous fine powder containing (CH 3COO) 2Mn·2H 2O and α-Fe 2O 3 (molar ratio Fe:Mn = 3:1), which was thermally treated for 2 h in N 2 atmosphere, at 400 °C. This composite system was further annealed for 4 h in the same atmosphere, either at 700 °C or at 1000...

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Veröffentlicht in:	Materials chemistry and physics 2007-09, Vol.105 (1), p.92-98
Hauptverfasser:	Bellini, J.V., de Medeiros, S.N., Ponzoni, A.L.L., Longen, F.R., de Melo, M.A.C., Paesano, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Freeze-drying Manganese ferrite Mössbauer spectroscopy Thermal analysis
Online-Zugang:	Volltext
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