Engineering multi-relaxation interfaces in Ti3C2T x for reducing wideband radar cross section

The development of multifunctional electromagnetic wave (EMW) absorbing materials become the inevitable course for the rapid progress of military weapons and 5 G smart communication technology. The construction of engineered multi-relaxation interfaces provides an effective means for materials to enhance EMW attenuation. Herein, MXene derived Ti3C2T (x) /TiO2 heterogeneous interface is tailored through the in-situ anneal, where the multi-relaxation nano-interfaces are achieved. When the annealed temperature reaches 450 degrees C, the maximum reflection loss of Ti3C2T (x) /TiO2 is -30.4 dB at 5.67 GHz due to the enhanced interfacial polarization and optimized impedance matching. More importantly, an effective reduction in the radar cross section up to -53 dBm(2) was achieved by using the Ti3C2T (x) /TiO2 as the octagonal patch through effective shape design. Therefore, we believe that Ti3C2T (x) /TiO2 with optimized shape has a broad application prospect in the field of radar stealth and practical electromagnetic protection.

Automated summary

The development of multifunctional electromagnetic wave (EMW) absorbing materials is crucial for the advancement of military weapons and 5G smart communication technology. By constructing engineered multi-relaxation interfaces, materials can enhance EMW attenuation. In this study, a Ti3C2T (x) /TiO2 heterogeneous interface derived from MXene is tailored through in-situ annealing, resulting in multi-relaxation nano-interfaces. The optimized Ti3C2T (x) /TiO2 shape achieved a maximum reflection loss of -30.4 dB at 5.67 GHz and a significant reduction in radar cross section up to -53 dBm(2), showing promising applications in radar stealth and practical electromagnetic protection.