材料科学
反射损耗
杰纳斯
微波食品加热
纳米复合材料
煅烧
吸收(声学)
光电子学
复合数
复合材料
纳米技术
电信
计算机科学
化学
生物化学
催化作用
作者
Yunzhou Xue,Xianyuan Liu,Xianyong Lu
标识
DOI:10.1016/j.jmst.2024.02.031
摘要
Hierarchically three-dimensional (3D) materials present a pivotal challenge and opportunity in achieving effective microwave absorption with synergistic effects. In this work, α-Fe2O3@ZrO2 with core-shell structure were fabricated in-situ on aramid nanofibers by a solvothermal method. Following calcination, 3D ZrO2/Fe3O4/C nanocomposites with Janus structure have been successfully synthesized. By controlling the lattice match and mismatch in both processes, a core-shell structure of α-Fe2O3@ZrO2 and Janus structure of ZrO2/Fe3O4 have been well-define performed. The composite material ZrO2/Fe3O4/C-700 has a minimum reflection loss (RLmin) of -67.40 dB at a thickness of 2.0 mm. The effective absorption bandwidth (EAB) at a thickness of 2.4 mm is 6.0 GHz (11.00-17.00 GHz). This study provides a novel strategy for fabricating high-efficiency electromagnetic wave absorption materials with dual synergistic effects in nanosized scale.
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