The sintering behaviour and microwave dielectric properties of LiCaPO₄ ceramic synthesized by the solid-state reaction method have been investigated, and the vibration property has been discussed with the help of the first principle calculation. Characterisation methods include X-ray diffraction, scanning electron microscopy, network analysis, differentia-thermal and thermo-mechanical analysis, and Raman spectrometry. The increasing sintering temperature results in the formation of the second phase. The composite ceramic with two phases (LiCaPO₄ and Ca₃(PO₄)₂) has formed when sintered at 950 °C, 2.99 g/cm³ for density, 20.09 for ɛ_r and tanδ=0.008 at 8 GHz.

研究了固态反应法合成的LiCaPO ₄陶瓷的烧结行为和微波介电性能，并借助第一性原理对振动性能进行了讨论。表征方法包括X射线衍射，扫描电子显微镜，网络分析，差热分析和热机械分析以及拉曼光谱法。升高的烧结温度导致第二相的形成。的复合陶瓷具有两个相（LiCaPO ₄和Ca ₃（PO ₄）₂）时已在950℃，2.99烧结形成克/厘米³密度，20.09为ɛ _ř 在8 GHz时tanδ= 0.008。