Abstract
In order to meet the requirements for low temperature co-fired ceramic devices at high frequency range, the sintering behavior, microstructure evolution, dielectric and magnetic properties of composites were investigated by varying the ratios of BaTiO3 to BaFe12O19 ferrite and additions of Bi2O3. In this paper, our results indicated that the BaTiO3 can adjust the structure and magnetic properties of the composites sintering at low temperature. Meanwhile, X-ray diffraction (XRD) and the scanning electron microscope (SEM) images showed that the composites were composed of BaTiO3 and barium ferrite. It can be seen that saturation magnetization decreased from 62 emu/g to 37.6 emu/g as the weight% varied from 0% to 15% and the samples with BaTiO3 had good dielectric properties in a wide frequency range. Ionic diffusion was found to take place between barium ferrites and BaTiO3, which contributed to the variety of the magnetic and dielectric properties observed in our samples.
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