Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1529985 | Materials Science and Engineering: B | 2010 | 6 Pages |
Some of recent technological advances in electronics need very compact magnetic materials. The paper presents the morphology and the magnetic properties of very dense polycrystalline magnetic materials obtained from co-precipitated manganese ferrite nanoparticles. The ferrite nanoparticles, with average diameter in the range of 13–25 nm, were obtained through an original low-cost co-precipitation route from aqueous solution of Mn2+ and Fe3+ ions generated by redox reactions between stoichiometric amounts of MnO2 (piroluzite) and FeSO4·7H2O raw materials. Very dense homogeneous polycrystalline magnetic materials with high square hysteresis loop (Br/Bs = 0.91) and low intrinsic coercivity were obtained using the co-precipitated un-doped manganese ferrite nanoparticles.