Effect of glass addition on dielectric properties of Ca[(Li1/3 Nb2/3)0.95Zr0.05]O3−δ −0.04TiO2 ceramics

ABSTRACT: The effects of ZnO-B2O3-Na2O(ZBN) glass on the sinterability and microwave dielectric properties of Ca[(Li1/3 Nb2/3)0.95Zr0.05]O3−δ −0.04TiO2 ceramics were investigated. The doping of ZBN glass can effectively reduce the sintering temperature by 100∼150°C. The temperature coefficient of resonator frequency τf is increased with an increase of ZBN glass content and sintering temperature. When the ZBN glass content of 1.8 wt% was added, the optimum microwave dielectric properties: εr = 31.2, Qf = 15420 GHz and τf = −4.8 × 10−6/°C were obtained at the sintering temperature of 1000°C.