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 0.2Zn0.5Cu0.3 ferrite nanopowders with AgO contents of 0,0.1 and 1wt% 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 1C). As a result,the saturation magnetization,coercivity and permeability of Ni0.2Zn0.5Cu0.3 ferrite with AgO contents of 0.1 wt% at a sintering temperature of 875 1C were 4.05 kG,4 Oe and 521, respectively,which were close to those of bulk NiZn ferrite.