For decades, porous ceramics have received much scientific and industrial interests because they possess better thermal and chemical stabilities than their counterparts, including porous polymers and porous metals. Among the numerous kinds of porous ceramics, reticulated porous ceramics have recently been prepared for various application fields. However, as far as the authors’ knowledge, the radar-absorbing properties of reticulated porous ceramics remain largely unknown, until now. Therefore, the feasibility of reticulated porous ceramics prepared using barium titanate, which has an inherently high dielectric constant, as a potential platform that could be used without additional radar-absorbing material coating has been discussed. From the results obtained in this study, it was discussed whether reticulated porous barium titanate could be fabricated with an acceptable mechanical strength and radar-absorbing properties. Quantitatively, the measured reflection loss (RL) of the 2.08-mm-thick reticulated porous barium titanate, approached − 16 dB (97.49% absorption of the radar wave) at 9.2 GHz. Meanwhile, the calculated RL of the as-prepared 2.50-mm-thick reticulated porous barium titanate approached − 21 dB (99.21% absorption of the radar wave) at 9.2 GHz.

数十年来，多孔陶瓷已获得了许多科学和工业兴趣，因为它们比包括多孔聚合物和多孔金属在内的同类陶瓷具有更好的热稳定性和化学稳定性。在多种多孔陶瓷中，最近已经为各种应用领域制备了网状多孔陶瓷。然而，据作者所知，到目前为止，网状多孔陶瓷的雷达吸收特性仍是未知之数。因此，已经讨论了使用具有固有的高介电常数的钛酸钡制备的网状多孔陶瓷作为可能的平台的可行性，该平台可以在无需额外的雷达吸收材料涂层的情况下使用。从这项研究中获得的结果，讨论了是否可以以可接受的机械强度和雷达吸收性能制造网状多孔钛酸钡。在数量上，厚度为2.08毫米的网状多孔钛酸钡的反射损耗（RL）在9.2 GHz时达到− 16 dB（雷达波吸收率97.49％）。同时，在9.2 GHz时，所制备的2.50毫米厚的网状多孔钛酸钡的RL接近− 21 dB（雷达波的吸收率为99.21％）。