Engineering multi-relaxation interfaces in Ti<sub>3</sub>C<sub>2</sub>T<i> <sub>x</sub> </i> for reducing wideband radar cross section
Tingting Liu, Wen‐Qiang Cao, Quan Yuan, Min Zhang, Mao‐Sheng Cao
Abstract
Abstract 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 Ti 3 C 2 T x /TiO 2 heterogeneous interface is tailored through the in-situ anneal, where the multi-relaxation nano-interfaces are achieved. When the annealed temperature reaches 450 °C, the maximum reflection loss of Ti 3 C 2 T x /TiO 2 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 Ti 3 C 2 T x /TiO 2 as the octagonal patch through effective shape design. Therefore, we believe that Ti 3 C 2 T x /TiO 2 with optimized shape has a broad application prospect in the field of radar stealth and practical electromagnetic protection.