ABSTRACT
320The nanoparticles of copper metal and Ni0.5Zn0.5Fe2O4 were synthesized by using electroplating and microwave-hydrothermal (M-H) methods, respectively, and they were further used to prepare Cu/Ni0.5Zn0.5Fe2O4 nanocomposites by mechanical milling method. The phase identification, crystallinity, and morphology of the prepared nanoparticles were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transforms infrared spectroscopy (FTIR). The XRD analysis was carried out on prepared nanocomposite to confirm the phases formed. The microstructure of nanocomposites has been examined by scanning electron microscopy (SEM). The magnetic hysteresis measurements were carried out to obtain important magnetic properties such as, saturation magnetization (Ms) and coercivity (Hc) of the samples. The performance of the copper/ NiZn ferrite composites has been estimated from the studies of dependence of permittivity spectra on the frequency. The higher frequency response characteristics (>1 GHz) of the nanocomposite has been obtained by the measurement of S-parameters. The applicability of the present nanocomposites for the use of electromagnetic microwave absorption was examined in terms of their dielectric, magnetic properties, and shielding effectiveness (SE). The microinductors were fabricated with the help of composite material by using screen-printing method. The electrical properties, such as inductance (L) and quality factor (Q) of the fabricated inductors were measured over a wide frequency range.
