A Low Sintering Temperature Low Loss Microwave Dielectric Material ZnZrNb ₂ O ₈

A low sintering temperature microwave dielectric material ZnZrNb 2 O 8 was reported. It exhibits a monoclinic structure, belongs to the space group P 2/ c ( C 2 h 4 ), and Z = 1. The dielectric constant increased with increasing relative density. The Qf value increased with increasing packing fraction. The τ f increased with increasing dielectric constant. The typical values of ZnZrNb 2 O 8 were ε = 30, Qf = 61 000 GHz, τ f =−52 × 10 −6 °C −1 , sintered at 950°C.