Samples Preparation of Ferrite for Absorbing Spectrum of X-Band Waves

Compound of spinel ferrite was prepared in this research in order to investigate and evaluate the microwaves absorption at X-band with the range of frequencies (8-12GHz). Conventional Ceramic techniques (the solid state reaction method) were used to prepare Cu-Zn ferrite micro particles (38 μm), with formula (Cu1-xZnxFe2O4), at x=0.6 where x is the proportion of zinc in the ferrite, as bulk samples (3 disks) of (3) cm in diameter. The resonance peaks of Cu-Zn ferrite appeared at the frequencies (9, 10, 11.5) GHz. For all samples it was found that the effect of increase the sintering temperature increased the values of attenuation and absorbance, the best values of attenuation coefficient and the absorbance are at 1150Cº. X-ray diffraction results showed that the structure was polycrystalline. The density of samples greatly depends on the temperature of sintering, witch increases proportionally with the temperature of the sintering .