A novel Ba₁₆ZrNb₁₂O₄₈ ceramic is synthesized by a solid-state sintering method. The phase composition, microstructure, infrared reflectivity spectrum and microwave dielectric properties of Ba₁₆ZrNb₁₂O₄₈ ceramic sintered at 1400−1500℃ are investigated. The differential scanning calorimetry and X-ray diffraction analysis indicate that Ba₁₆ZrNb₁₂O₄₈ crystallizes in the hexagonal perovskite structure with space group R-3 m at 1250℃. As the temperature increases, the permittivity and Q × f value exhibit a strong relevance to the relative density. The satisfactory microwave dielectric properties of ε_r = 36.85, Q × f = 57,000 GHz (at f = 6.50 GHz), and τ_f = 48 ppm/℃ are obtained when the specimen is sintered at 1450℃, which renders Ba₁₆ZrNb₁₂O₄₈ a potential candidate for microwave electronic devices.

采用固相烧结法合成了新型Ba ₁₆ ZrNb ₁₂ O ₄₈陶瓷。研究了Ba ₁₆ ZrNb ₁₂ O ₄₈陶瓷在1400-1500℃下烧结的相组成、微观结构、红外反射光谱和微波介电性能。差示扫描量热法和X射线衍射分析表明，Ba ₁₆ ZrNb ₁₂ O ₄₈在1250℃以空间群R-3 m的六方钙钛矿结构结晶。随着温度升高，介电常数和 Q × f 值与相对密度密切相关。ε 令人满意的微波介电性能_r = 36.85, Q × f = 57,000 GHz (在 f = 6.50 GHz), 和 τ _f = 48 ppm/℃ 当样品在 1450℃ 下烧结时获得，这使得 Ba ₁₆ ZrNb ₁₂ O ₄₈成为微波的潜在候选者电子设备。