Preparation and Properties of Ba_aZn_zCo_2-zFe_12O22-SiO_2 Microcrystallite Glass Ceramics by Citrate Sol-Gel Process

Ba2ZnzCo2-zFe12O22-SiO2 microcrystallite glass ceramics were prepared by citrate sol-gel process; The detailed informations of phases composition and microstructure were obtained by XRD and SEM. It shows that the average crystal size of Ba2ZnzCo2-zFe12O22-SiO2 microcrystallite glass ceramics calcined at 1200℃/5h is about 0.3μm; The vector network analyzer was used to measure the complex permeability and dielectric constant of the samples in the frequency range of 0.1-6.0GHz, the complex dielectric constant and the real part of permeability decrease with measuring frequency increasing, very obvious resonance peaks were observed in μ -f curves.