The Li₄MgWO₆ ceramic was synthesized by the conventional solid-state reaction method, and its sintering behavior and microwave dielectric properties were studied for the first time. The XRD patterns and structural refinements indicated that Li₄MgWO₆ formed an orthorhombic phase at temperatures above 900 °C, and TEM analyses confirmed the ordered and layered rock-salt superstructures for the orthorhombic Li₄MgWO₆. The SEM photographs and relative density curve showed that the sample sintered at 950 °C had the highest densification. When sintered at 950 °C in a WO₃-rich atmosphere for 4 h, Li₄MgWO₆ had the following optimum properties: ε_r = 15.06±0.33, Q×f = 28,300±600 GHz (f = 10.1 GHz), and τ_f = 0.9±3.4 ppm/°C. Compared with other reported low permittivity compounds, Li₄MgWO₆ shows more potential for the Low-Temperature Cofired Ceramics (LTCC) substrate materials due to its intrinsic low sintering temperature, novel temperature stability, and relatively low dielectric loss.

采用常规固相反应法合成了Li ₄ MgWO ₆陶瓷，并首次对其烧结行为和微波介电性能进行了研究。XRD图谱和结构改进表明，Li ₄ MgWO ₆在高于900°C的温度下形成了正交相，TEM分析证实了正交Li ₄ MgWO ₆的有序和层状岩盐超结构。SEM照片和相对密度曲线表明，在950°C烧结的样品具有最高的致密化。当在富含WO _{3 的}气氛中在 950 °C 下烧结4 小时时，Li ₄ MgWO ₆具有以下最佳特性：ε _r = 15.06±0.33，Q × f = 28,300±600 GHz ( f = 10.1 GHz)，τ _f = 0.9±3.4 ppm/°C。与其他报道的低介电常数化合物相比，Li ₄ MgWO ₆由于其固有的低烧结温度、新颖的温度稳定性和相对较低的介电损耗，在低温共烧陶瓷 (LTCC) 基板材料方面显示出更大的潜力。