Low dielectric permittivity and low loss of low temperature co-fired Li2ZnxMg0.98−xCo0.02SiO4 ceramics with LiF–Bi2O3 additives

In present study, low temperature co-fired Li2ZnxMg0.98−xCo0.02SiO4 ceramics with LiF–Bi2O3 additives were prepared by solid state reaction method. The LiF and Bi2O3 additives were not only reducing the sintering temperature of Li2ZnxMg1 − xCo0.02SiO4 ceramics, but also enhancing the dielectric properties. The effects of LiF–Bi2O3 on structure and dielectric properties were investigated. Under the additive action, all XRD patterns showed the single phase and the grain size increased gradually. Additional, the ratio of Zn2+ and Mg2+ ions affected the structure and properties of Li2ZnxMg0.98−xCo0.02SiO4 ceramics. When x = 0.6, the real part of dielectric permittivity was about 6.12 at 1 MHz–1.5 GHz, while the dielectric loss was about 1.2 × 10−3, which was fairly potential application for antenna substrate.