The synthesis of scheelite-structured BaWO₄ ceramics at low temperatures using a Li₂O–B₂O₃–BaCO₃–CuO (LBBC) glass frit is reported in this study. Composite ceramics with the chemical formula BaWO₄-xLBBC (x = 0.25, 0.5, 1, and 2 wt%) were synthesized via the standard solid-phase method. A compact BaWO₄ matrix containing glass crystallized when sintered at 850 °C for only 30 min. The BaWO₄ ceramic with 1 wt% LBBC glass exhibits optimum microwave dielectric performance with Q × f = 58,855 GHz, ε_r = 8.33, and τ_f = −61.43 ppm/°C. A results of XRD and SEM analyses, microwave properties and the liquid-phase sintering mechanism for the ceramics are presented.

本研究报道了使用 Li ₂ O–B ₂ O ₃ –BaCO ₃ –CuO (LBBC) 玻璃料在低温下合成白钨矿结构的 BaWO ₄陶瓷。 通过标准固相法合成了化学式为BaWO ₄ - x LBBC ( x = 0.25、0.5、1 和 2 wt%) 的复合陶瓷。当在 850 °C 下烧结仅 30 分钟时，含有玻璃的紧凑型 BaWO ₄基体就会结晶。该钨酸钡₄陶瓷与1重量％的玻璃LBBC展品最佳微波介电性能与Q×  ˚F  = 58855千兆赫，ε _{- [R}  = 8.33，和τ _˚F = −61.43 ppm/°C。介绍了陶瓷的 XRD 和 SEM 分析、微波性能和液相烧结机制的结果。