Abstract
The nanocomposites of xTiO2+(1−x)Ni0.53Cu0.12Zn0.35Fe2O4 (where 0≤x≥1) were prepared using microwave–hydrothermal (M–H) method at 165°C/45min. The as-synthesized powders were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). The particle size of the powder varies from 18 to 35nm. The as prepared powders were densified at 500°C/30min using microwave sintering method. The sintered composites were characterized by XRD and scanning electron microscopy (SEM). The bulk densities of the present composites were increasing with the addition of TiO2. The grain sizes of all the composite vary between 65nm and 90nm. The addition of TiO2 to ferrite increased the dielectric properties (ε′ and ε″) also the resonant frequency of all the composites was found to be greater than 1GHz. The imaginary part of permeability (μ″) was found to increase with an increase of TiO2.
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