Magnetic properties and sintering characteristics of NiZn(Ag, Cu) ferrite for LTCC applications

Abstract For applying low-temperature co-fired ceramics technology to ferrite with Ag electrode, Ni 0.2 Zn 0.5 Cu 0.3 ferrite nanopowders with AgO contents of 0, 0.1 and 1 wt% were synthesized using metal nitrates. Thick films fabricated by a doctor blade method were sintered for 72 h at different temperatures (925, 900, 875, 850 °C). As a result, the saturation magnetization, coercivity and permeability of Ni 0.2 Zn 0.5 Cu 0.3 ferrite with AgO contents of 0.1 wt% at a sintering temperature of 875 °C were 4.05 kG, 4 Oe and 521, respectively, which were close to those of bulk NiZn ferrite.