Dielectric ceramics composition with high dielectric coefficient microwave for low temperature sintering and preparing method thereof

摘要

The present invention relates to a low loss high frequency dielectric ceramic composition for low temperature sintering, wherein the composition is represented by BaO-Sm ₂ O ₃ -4TiO ₂ -xB ₂ O ₃ -yCuO, wherein B ₂ O ₃ and CuO for the whole composition X and y, which are mole% of, have values in the range of 5.0 mol% ≤ x ≤ 20.0 mol% and 5.0 mol% ≤ y ≤ 20.0 mol%, respectively.;The low temperature sintered microwave dielectric composition of the present invention is capable of sintering at a low temperature of 900 ° C. or lower, high dielectric constant of 60 or more, high quality factor of 3500 or more, and stable resonance in a range of -14.2 to -9.3 ppm / ° C. It has a frequency temperature coefficient τ _f and is not reactive with Ag used as an electrode.;The composition of the present invention can be used as a high-frequency dielectric ceramic component material for low temperature sintering as a dielectric having excellent dielectric properties while being sintered at a temperature lower than 900 ° C.;High Frequency Dielectrics, BaO-Sm2O3-4TiO2, B2O3, CuO, Low Temperature Sintering