Structure and magnetic properties of mechanically milled Pb₃O₄-Fe₂O₃ mixture
by Ahmed M. Al-Saie, Adnan Jaafar, Mohamed Bououdina
International Journal of Nanoparticles (IJNP), Vol. 4, No. 1, 2011

Abstract: A mixture of Fe₂O₃ and Pb₃O₄ oxides has been mechanically milled to form the nanosized spinel PbFe₂O₄ phase. X-ray diffraction pattern of the as milled mixture shows the presence of Fe₂O₃ peaks in addition to a broad halo around 29° related to the amorphisation of Pb₃O₄. Annealing at 750°C for 1 h, leads to the formation of new phases as evidenced by the appearance of new peaks. The saturation magnetisation and coercivity values of the as-milled mixture are 1.03 emu/g and 200 Oe, respectively. After annealing, a paramagnetic behaviour with a large hysteresis loop was observed.

Online publication date: Fri, 13-Mar-2015

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