Cite this article as: | Yuan Tian, Shuo Cheng, Guoyu Yang, Xuming Yao, Long Cheng, Yujun Li, and Jianjun Jiang, A broadband metamaterial wave absorber based on carbonyl iron powder modified dielectric layer, Int. J. Miner. Metall. Mater.,(2024). https://doi.org/10.1007/s12613-024-3044-z |
In the field of broadband metamaterial absorbers, most research efforts have focused on optimizing the resonant layers and designing multi-layer structures, with relatively little attention paid to the dielectric layers themselves. This paper proposes a method of modifying the dielectric layer using carbonyl iron powder, which significantly enhances the electromagnetic wave attenuation capability of the dielectric layer in the X-band for metamaterial absorber. A broadband absorber capable of effectively absorbing electromagnetic waves (RL≤-10dB) over the frequency range of 4.92-18GHz, covering the C, X, and Ku bands, was designed. We analyzed the surface current distribution, power loss distribution, etc. to elucidate the absorption mechanism of the absorber. It was found that the modified dielectric layer accounted for more than 50% of the total loss in the 2-18GHz frequency band, and the effective absorption bandwidth was almost twice that of the unmodified dielectric layer, attributed to the introduction of a new electromagnetic wave loss mechanism by carbonyl iron powder. Meanwhile, the absorber exhibited good angular stability, maintaining at least 80% absorption (RL ≤ -7 dB) in the 6.0-18.0 GHz range even when the incident angle was increased to 60°. The experimental results show that the measured results match the simulation results well, and compared with other methods for broadening the absorption bandwidth, the metamaterial absorber obtained by this method offers several advantages, including wideband absorption, thin profile, and a simple manufacturing process. This approach provides a new and promising direction for the design of broadband absorbers.
[1] | Chong-yu Liu, Guang-biao Teng, Zong-yi Ma, Li-li Wei, Bing Zhang, Yong Chen. Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy [J]. International Journal of Minerals, Metallurgy and Materials, 2019, 26(12): 1559-1569. DOI: 10.1007/s12613-019-1840-7 |
[2] | Xiao-qing Ni, De-cheng Kong, Ying Wen, Liang Zhang, Wen-heng Wu, Bei-bei He, Lin Lu, De-xiang Zhu. Anisotropy in mechanical properties and corrosion resistance of 316L stainless steel fabricated by selective laser melting [J]. International Journal of Minerals, Metallurgy and Materials, 2019, 26(3): 319-328. DOI: 10.1007/s12613-019-1740-x |
[3] | Dong-tao Wang, Hai-tao Zhang, Lei Li, Hai-lin Wu, Ke Qin, Jian-zhong Cui. The evolution of microstructure and mechanical properties during high-speed direct-chill casting in different Al-Mg2Si in situ composites [J]. International Journal of Minerals, Metallurgy and Materials, 2018, 25(9): 1080-1089. DOI: 10.1007/s12613-018-1659-7 |
[4] | Xiao-feng Wang, Ming-xing Guo, Cun-qiang Ma, Jian-bin Chen, Ji-shan Zhang, Lin-zhong Zhuang. Effect of particle size distribution on the microstructure, texture, and mechanical properties of Al–Mg–Si–Cu alloy [J]. International Journal of Minerals, Metallurgy and Materials, 2018, 25(8): 957-966. DOI: 10.1007/s12613-018-1645-0 |
[5] | Ze-an Zhou, Wan-tang Fu, Zhe Zhu, Bin Li, Zhong-ping Shi, Shu-hua Sun. Excellent mechanical properties and resistance to cavitation erosion for an ultra-low carbon CrMnN stainless steel through quenching and partitioning treatment [J]. International Journal of Minerals, Metallurgy and Materials, 2018, 25(5): 547-553. DOI: 10.1007/s12613-018-1601-z |
[6] | Kun Tian, Shujie Pang, Hua Men, Tao Zhang. Formation and mechanical properties of ductile Fe-based amorphous alloys using a cast iron with minor addition of B and Al [J]. International Journal of Minerals, Metallurgy and Materials, 2007, 14(S1): 46-49. DOI: 10.1016/S1005-8850(07)60107-8 |
[7] | Farid Akhtar, Shiju Guo, Jawid Askari, Jianjun Tian. Sintering behavior, microstructure and properties of TiC-FeCr hard alloy [J]. International Journal of Minerals, Metallurgy and Materials, 2007, 14(1): 89-93. DOI: 10.1016/S1005-8850(07)60018-8 |
[8] | Zhengzhi Zhao, Yonglin Kang, Hao Yu. Microstructure and mechanical properties of automobile beam steels produced by EAF-CSP process [J]. International Journal of Minerals, Metallurgy and Materials, 2006, 13(6): 508-511. DOI: 10.1016/S1005-8850(06)60103-5 |
[9] | Shuangqun Zhao, Jianxin Dong, Xishan Xie. Mechanical properties and microstructure changes after long-term aging at 700℃ for a nickel-base superalloy [J]. International Journal of Minerals, Metallurgy and Materials, 2003, 10(4): 42-45. |
[10] | Jun Wu, Chaobin Hao, Yana Wang, Shiqi Li, Linjie Yang. Some Concepts on Statistical Models of Relating Mechanical Properties to Chemical Composition [J]. International Journal of Minerals, Metallurgy and Materials, 1998, 5(2): 84-86. |
1. | Bo Zhang, Chenjie Hou, Chao Huan, et al. Investigation on the Performance and Assessment of Cylindrical Latent Heat Storage Units Within Backfill Mines Followed a Similar Experimental Methodology. Energies, 2025, 18(5): 1299. DOI:10.3390/en18051299 |
2. | Jianfei Xu, Yinan Yao, Hao Yan, et al. Experimental study of pipeline pressure loss laws with large-size gangue slurry during the process of industrial-grade annular pipe transportation. Construction and Building Materials, 2024, 436: 136993. DOI:10.1016/j.conbuildmat.2024.136993 |
3. | Dengfeng Zhao, Shiyu Zhang, Yingliang Zhao. Recycling arsenic-containing bio-leaching residue after thermal treatment in cemented paste backfill: Structure modification, binder properties and environmental assessment. International Journal of Minerals, Metallurgy and Materials, 2024, 31(10): 2136. DOI:10.1007/s12613-024-2825-8 |
4. | Peng Liu, Xinglan Cui, Teng Xiong, et al. A novel candidate shape-stabilized phase change material for building energy conservation based on lauric acid/roasted iron tailings-expanded graphite. Construction and Building Materials, 2024, 428: 136365. DOI:10.1016/j.conbuildmat.2024.136365 |
5. | Hai Li, Aibing Jin, Shuaijun Chen, et al. Paraffin–CaCl2·6H2O dosage effects on the strength and heat transfer characteristics of cemented tailings backfill. International Journal of Minerals, Metallurgy and Materials, 2024, 31(1): 60. DOI:10.1007/s12613-023-2700-z |
6. | Xiaoyan Zhang, Ziyi Han, Lang Liu, et al. Experimental Study on Mechanical and Thermal Properties of Backfill Body with Paraffin Added. Energies, 2023, 17(1): 217. DOI:10.3390/en17010217 |
7. | Aleksandar M. Mitrašinović, Yang Yuankun, Srecko Stopic, et al. Feasibility of Recovering Valuable and Toxic Metals from Copper Slag Using Iron-Containing Additives. Metals, 2023, 13(8): 1467. DOI:10.3390/met13081467 |