The work attempted to develop a new kind of high temperature microwave absorption material. Dense Na₃Zr_1.9M_0.1Si₂PO_11.9 (M = Ca²⁺, Ni²⁺, Mg²⁺, Co²⁺, Zn²⁺) and Na₃Zr_2-xZn_xSi₂PO_12-x (x = 0.1, 0.2, 0.3, 0.4) ceramics were prepared by solid-state reactions for phase, microstructure characterization and dielectric properties, microwave absorption properties analysis. Results show that the complex permittivity increases in all the divalent-doped Na₃Zr₂Si₂PO₁₂ ceramics. Na₃Zr_1.8Zn_0.2Si₂PO_11.8 ceramic exhibits the highest complex permittivity and optimum microwave absorption performance. The lowest reflection loss is -28.1 dB at 9.88 GHz and the bandwidth is 4.14 GHz (8.26–12.4 GHz) with a thickness of 2.1 mm. It indicates that Na₃Zr₂Si₂PO₁₂ ceramic can be chosen as a potential candidate of microwave absorption material and the performance can be enhanced by divalent doping strategy.

这项工作试图开发一种新型的高温微波吸收材料。致密Na ₃ Zr _1.9 M _0.1 Si ₂ PO _11.9（M = Ca 2 ⁺，Ni 2 ⁺，Mg 2 ⁺，Co 2 ⁺，Zn ²⁺）和Na ₃ Zr _2-x Zn _x Si ₂ PO _12-x（通过固相反应制备x = 0.1、0.2、0.3、0.4）陶瓷，用于相，微结构表征和介电性能，微波吸收性能分析。结果表明，所有二价掺杂的Na中的复介电常数均增加₃ Zr ₂ Si ₂ PO ₁₂陶瓷。Na ₃ Zr _1.8 Zn _0.2 Si ₂ PO _11.8陶瓷具有最高的复介电常数和最佳的微波吸收性能。最低的反射损耗在9.88 GHz时为-28.1 dB，带宽为4.14 GHz（8.26-12.4 GHz），厚度为2.1 mm。这表明可以选择Na ₃ Zr ₂ Si ₂ PO ₁₂陶瓷作为微波吸收材料的潜在候选材料，并且通过二价掺杂策略可以提高性能。