fig7

Figure 7. Dynamic absorption frequency tuning enabled by compressible elasticity. (A) Compression-recovery properties, (B) strain-dependent dynamic broadband absorption performance, and (C) comparison of RL_min and EAB with representative EMW absorbing materials for SiC@C nanowire aerogel. (A-C) are reprinted with permission from Ref.^[55]. Copyright © 2020, American Chemical Society; (D) Cyclic compression stress-strain curves, (E) simulated power loss density distribution at varying compressive strains, and (F) strain-dependent effective absorption bandwidth of bicontinuous Si₃N₄/SiC nanowire network; (G) Thermal shock resistance from -196 to 1,100 °C, (H) weight and volume retention after thermal cycling, and (I) reflection loss curves of Si₃N₄/SiC nanowire network. (D-I) are reprinted with permission from Ref.^[52]. © 2022 Wiley‐VCH GmbH. EAB: Effective absorption bandwidth; EMW: electromagnetic wave; SCNF: SiC@C nanowire foam; RL: reflection loss; CNWs: carbon nanowires; ERG: edge-rich graphene; RGO: reduced graphene oxide.