中文摘要：

提高硅碳化物 nanowires (SiCNWs ) 的微波吸收表演，有约 2 nm 和 Fe ₃2 nanoshells > O ₄ nanoparticles 在 SiCNWs 的表面上被种形成 SiC@SiO ₂@Fe₃ O ₄ 混血儿。SiC@SiO ₂@Fe₃ 有不同厚度的 O ₄ 混血儿用一个空间基于天线的系统从 2 ～ 18 GHz 在频率范围被调查。结果显示那 SiC@SiO ₂@Fe₃ O ₄ 混血儿展出改进微波吸收。特别地，在到铁(III ) 的 SiC@SiO ₂ 的情况中 1:3 的 acetylacetonate 团比率，有 2 公里厚度的一个吸收器的微波吸收在 12.24 GHz 展出了 39.58 dB 的最小的思考损失。关于提高的微波吸收机制， Fe ₃ 在 SiC@SiO ₂ nanowires 上涂的 O ₄ nanoparticles 被建议平衡材料的渗透和介电常数，贡献微波变细。

英文摘要：

To enhance the microwave absorption performance of silicon carbide nanowires（SiCNWs）, SiO_2 nanoshells with a thickness of approximately 2 nm and Fe_3O_4 nanoparticles were grown on the surface of SiCNWs to form SiC@SiO_2@Fe_3O_4 hybrids. The microwave absorption performance of the SiC@SiO_2@Fe_3O_4 hybrids with different thicknesses was investigated in the frequency range from 2 to 18 GHz using a free-space antenna-based system. The results indicate that SiC@SiO_2@Fe_3O_4 hybrids exhibit improved microwave absorption. In particular, in the case of an SiC@SiO_2 to iron（III） acetylacetonate mass ratio of 1：3, the microwave absorption with an absorber of 2-mm thickness exhibited a minimum reflection loss of-39.58 d B at 12.24 GHz. With respect to the enhanced microwave absorption mechanism, the Fe_3O_4 nanoparticles coated on SiC@SiO_2 nanowires are proposed to balance the permeability and permittivity of the materials, contributing to the microwave attenuation.