Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys
Magnetic materials have a very broad application prospect in the field of microwave absorption, among which soft magnetic materials become the focus of magnetic materials research because of their high saturation magnetization and low coercivity. FeNi<sub>3</sub> alloy has been widely us...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/5/930 |
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| author | Yu Zheng Mei Wu Congyi Qian Yuxin Jin Wei Xiao Xiaohui Liang |
| author_facet | Yu Zheng Mei Wu Congyi Qian Yuxin Jin Wei Xiao Xiaohui Liang |
| author_sort | Yu Zheng |
| collection | DOAJ |
| description | Magnetic materials have a very broad application prospect in the field of microwave absorption, among which soft magnetic materials become the focus of magnetic materials research because of their high saturation magnetization and low coercivity. FeNi<sub>3</sub> alloy has been widely used in soft magnetic materials because of its excellent ferromagnetism and electrical conductivity. In this work, FeNi<sub>3</sub> alloy was prepared by the liquid reduction method. The effect of the filling ratio of FeNi<sub>3</sub> alloy on the electromagnetic properties of absorbing materials was studied. It is found that the impedance matching ability of FeNi<sub>3</sub> alloy is better when the filling ratio is 70 wt% than that of other samples with different filling ratios (30–60 wt%), showing better microwave absorption characteristics. When the matching thickness is 2.35 mm, the minimum reflection loss (RL) of FeNi<sub>3</sub> alloy with a 70 wt% filling ratio reaches −40.33 dB, and the effective absorption bandwidth is 5.5 GHz. When the matching thickness is between 2 and 3 mm, the effective absorption bandwidth ranges from 7.21 GHz to 17.81 GHz, almost covering the whole X and Ku bands (8–18 GHz). The results show that FeNi<sub>3</sub> alloy has adjustable electromagnetic properties and microwave absorption properties with different filling ratios, which is conducive to selecting excellent microwave absorption materials. |
| first_indexed | 2024-03-11T07:15:58Z |
| format | Article |
| id | doaj.art-d82dfa70424e4f63824ae821a2094c2c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T07:15:58Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-d82dfa70424e4f63824ae821a2094c2c2023-11-17T08:18:30ZengMDPI AGNanomaterials2079-49912023-03-0113593010.3390/nano13050930Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> AlloysYu Zheng0Mei Wu1Congyi Qian2Yuxin Jin3Wei Xiao4Xiaohui Liang5Hangzhou Dianzi University, Hangzhou 310018, ChinaHangzhou Dianzi University, Hangzhou 310018, ChinaHangzhou Dianzi University, Hangzhou 310018, ChinaHangzhou Dianzi University, Hangzhou 310018, ChinaHangzhou Dianzi University, Hangzhou 310018, ChinaHangzhou Dianzi University, Hangzhou 310018, ChinaMagnetic materials have a very broad application prospect in the field of microwave absorption, among which soft magnetic materials become the focus of magnetic materials research because of their high saturation magnetization and low coercivity. FeNi<sub>3</sub> alloy has been widely used in soft magnetic materials because of its excellent ferromagnetism and electrical conductivity. In this work, FeNi<sub>3</sub> alloy was prepared by the liquid reduction method. The effect of the filling ratio of FeNi<sub>3</sub> alloy on the electromagnetic properties of absorbing materials was studied. It is found that the impedance matching ability of FeNi<sub>3</sub> alloy is better when the filling ratio is 70 wt% than that of other samples with different filling ratios (30–60 wt%), showing better microwave absorption characteristics. When the matching thickness is 2.35 mm, the minimum reflection loss (RL) of FeNi<sub>3</sub> alloy with a 70 wt% filling ratio reaches −40.33 dB, and the effective absorption bandwidth is 5.5 GHz. When the matching thickness is between 2 and 3 mm, the effective absorption bandwidth ranges from 7.21 GHz to 17.81 GHz, almost covering the whole X and Ku bands (8–18 GHz). The results show that FeNi<sub>3</sub> alloy has adjustable electromagnetic properties and microwave absorption properties with different filling ratios, which is conducive to selecting excellent microwave absorption materials.https://www.mdpi.com/2079-4991/13/5/930FeNi<sub>3</sub> alloymicrowave absorptionreflection losseffective absorption bandwidth |
| spellingShingle | Yu Zheng Mei Wu Congyi Qian Yuxin Jin Wei Xiao Xiaohui Liang Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys Nanomaterials FeNi<sub>3</sub> alloy microwave absorption reflection loss effective absorption bandwidth |
| title | Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys |
| title_full | Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys |
| title_fullStr | Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys |
| title_full_unstemmed | Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys |
| title_short | Tunable Electromagnetic and Microwave Absorption Properties of Magnetic FeNi<sub>3</sub> Alloys |
| title_sort | tunable electromagnetic and microwave absorption properties of magnetic feni sub 3 sub alloys |
| topic | FeNi<sub>3</sub> alloy microwave absorption reflection loss effective absorption bandwidth |
| url | https://www.mdpi.com/2079-4991/13/5/930 |
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