Enhancement Initial Permeability of LOW Temperature Sintered NiCuZn Ferrites

摘要

NiCuZn ferrites for multilayer ferrite chip components have to be sintered at a temperature lower than 930deg C due to the internal Ag winding. This sintering temperature is required for higher density and larger grain growth of the ferrites which, in turn, improve its magnetic properties. Optimum composition, high purity Fe_2O_3, homogeneous composition of ferrite grains and addition of boron silicate glass were studied with reference to the microstructure and the magnetic properties. Therefore, significant increase of densification and improvement in magnetic properties of low temperature sintered NiCuZn ferrites were obtained.