Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Abstract

Ni 0.53 Cu 0.12 Zn 0.35 Fe 2 O 4 ferrite powder is synthesized using the microwave-assisted hydrothermal (M-H) technique. The synthesized powder is characterized using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The morphology of the powder particles is examined using field effective scanning electron microscopy (FESEM). The powder is then sintered using microwave and conventional methods at 910°C/1.5 h and 910°C/4 h, respectively. The grain size, bulk density, d.c. resistivity, and saturation magnetization of both the sintered samples are measured and compared. The dielectric properties of both the sintered samples are measured at frequencies ranging from 1 MHz to 1.8 GHz. The research indicates that the sintering process has an impact on the magnetodielectric performance of ferrites. The change in properties resulting by the sintering method is briefly reviewed.