Synthesis and Microwave Dielectric Properties of Novel Temperature Stable High <i>Q</i> , Li ₂ ATi ₃ O ₈ (A=Mg, Zn) Ceramics

Abstract

Li 2 ATi 3 O 8 (A=Mg, Zn) ceramics are prepared by the conventional solid‐state ceramic route, and the phase purity, microstructure, and microwave dielectric properties are investigated. Li 2 MgTi 3 O 8 ceramics show ɛ r =27.20, Q u × f =42 000 GHz, and τ f =(+) 3.2 ppm/°C, and Li 2 ZnTi 3 O 8 ceramics have ɛ r =25.6, Q u × f =72 000 GHz, and τ f =(−) 11.2 ppm/°C, respectively, when sintered at 1075°C/4 h.