High permeability of low loss Mn–Zn ferrite obtained by sintering nanoparticle Mn–Zn ferrite

Nanoparticle ferrite having general formulae MnxZn1-xFe2O4MnxZn1-xFe2O4 with x=0.35/0.40/0.45/0.55/0.60/0.65x=0.35/0.40/0.45/0.55/0.60/0.65 were prepared using nitrilotriacetate precursor method. Production of fine grain size material at low temperature is the unique feature of this method. Bulk MnxZn1-xFe2O4MnxZn1-xFe2O4 ferrite material produced by sintering nanoparticles 950/1050/1150/1250/1350∘C progressively in nitrogen atmosphere showed high values for initial permeability. Scanning electron microscopy and transmission electron microscopy were especially employed in order to elucidate the microstructure and understand the dependence of permeability and relative loss factor on the material grain size.