| Electromagnetic wave absorption properties of core double-shell structured alpha-Fe(Si)@Fe3O4@SiO2 composites | |
| Hou, Yuanzhao1,2; Li, Binchuan1,2; Chen, Jianshe1,2; Shen, Xiaoyi1,2; Wang, Bo3; Liu, Kuiren1,2; Wei, Shicheng3; He, Xiaocai4; Li, Da5; Han, Qing1,2 | |
| Corresponding Author | Wei, Shicheng() ; He, Xiaocai() ; Li, Da() ; Han, Qing(hanq@mail.neu.edu.cn) |
| 2023-04-01 | |
| Source Publication | APPLIED SURFACE SCIENCE
 |
| ISSN | 0169-4332 |
| Volume | 615Pages:10 |
| Abstract | Core double-shell hierarchical structured alpha-Fe(Si)@Fe3O4@SiO2 (FFS) microwave absorbing composites have been fabricated by high-temperature mechano-chemical method. Heterogeneous interfaces of Fe/Si, alpha-Fe(Si)/ Fe3O4, Fe3O4/SiO2 and high-density defects were formed by coupling the controlled temperature field and mechanical force. A dramatic reduction in the average particle size of the composite powder was caused by increasing ball-to-powder ratio. Electromagnetic wave absorption (EMWA) performance of the FFS composites was investigated in the 2-18 GHz frequency range. A balance of impedance matching and strong attenuation characteristics was achieved due to the asymmetric charge distribution at the heterogeneous interfaces, high-density defects, natural resonance, and exchange resonance of the FFS composites. When the ball-to-powder ratio is 40:1, the minimum reflection loss (RLmin) of the FFS composite is-47.04 GHz at a frequency of 5.28 GHz with an absorption layer thickness of 3.1 mm. A broad effective absorbing bandwidth (EAB, RL <-10 dB) of 5.6 GHz (12.4-18 GHz) with a thickness of 1.3 mm covers almost the entire Ku-band. After annealing at 1173 K in an argon atmosphere, the FFS composite with 30:1 ball-to-powder ratio shows excellent EMWA performance in the S-band, where the RLmin reaches-50.18 dB at 2.88 GHz with a thickness of 5.0 mm. |
| Keyword | High-temperature mechanochemical method Core double-shelled structure Electromagnetic wave absorption performance |
| Funding Organization | National Key R & D Program of China ; National Natural Science Foundation of China ; National Defense Science and Technology Excellence Young Scientists Foundation ; Natural Science Foundation of Yunnan Province |
| DOI | 10.1016/j.apsusc.2023.156345 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R & D Program of China[2019YFB1311100] ; National Natural Science Foundation of China[51905543] ; National Defense Science and Technology Excellence Young Scientists Foundation[2017- JCJQ-ZQ-001] ; Natural Science Foundation of Yunnan Province[202101AS070029] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000925640200001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175179 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wei, Shicheng; He, Xiaocai; Li, Da; Han, Qing |
| Affiliation | 1.Northeastern Univ, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 3.Army Acad Armored Forces, Natl Key Lab Remfg, Beijing 100072, Peoples R China 4.Kunming Met Res Inst, Kunming 650031, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Hou, Yuanzhao,Li, Binchuan,Chen, Jianshe,et al. Electromagnetic wave absorption properties of core double-shell structured alpha-Fe(Si)@Fe3O4@SiO2 composites[J]. APPLIED SURFACE SCIENCE,2023,615:10. |
| APA | Hou, Yuanzhao.,Li, Binchuan.,Chen, Jianshe.,Shen, Xiaoyi.,Wang, Bo.,...&Han, Qing.(2023).Electromagnetic wave absorption properties of core double-shell structured alpha-Fe(Si)@Fe3O4@SiO2 composites.APPLIED SURFACE SCIENCE,615,10. |
| MLA | Hou, Yuanzhao,et al."Electromagnetic wave absorption properties of core double-shell structured alpha-Fe(Si)@Fe3O4@SiO2 composites".APPLIED SURFACE SCIENCE 615(2023):10. |
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