Silver Co‐Firable ZnTiNb 2 O 8 Microwave Dielectric Ceramics with Li 2 O–ZnO–B 2 O 3 Glass Additive

The effects of Li 2 O–ZnO–B 2 O 3 glass additive on the sintering behavior, phase formation, microstructure, and microwave dielectric properties of ZnTiNb 2 O 8 ceramics have been investigated. The sintering temperature of ZnTiNb 2 O 8 ceramics can be effectively reduced from 1200°C to 875°C by adding a small amount of Li 2 O–ZnO–B 2 O 3 glass, while no obvious degradation of the microwave dielectric properties was induced. Typically, the 2.0 wt% Li 2 O–ZnO–B 2 O 3 glass‐added ceramic sintered at 875°C has better microwave dielectric properties of ɛ r =31.8, Q × f =25,013 GHz, and τ f =−62 ppm/°C. In addition, the ceramics can be co‐fired well with an Ag electrode.