Sodiumphosphinate-assisted synthesis of P-doped FeCo microcubes and their electromagnetic scattering characteristics
| Autor: | Ronghai Yu, Junzhe He, Yuping He, Xiaofang Liu, Xin Sun, Jianping He, Junjie Pan, Zhiming Song |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Radar cross-section
Materials science Dopant business.industry Scattering Mechanical Engineering Reflection loss Alloy Doping Metals and Alloys 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electromagnetic radiation 0104 chemical sciences Mechanics of Materials Materials Chemistry engineering Optoelectronics Particle size 0210 nano-technology business |
| Zdroj: | Journal of Alloys and Compounds. 820:153280 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2019.153280 |
| Popis: | P-doped FeCo microcubes are fabricated through a facile solvothermal method using sodiumphosphinate (NaH2PO2·H2O) as assisted agent. The morphology and particle size of FeCo alloy can be well controlled by tuning the NaH2PO2·H2O amount. Benefitting from the unique morphology and the incorporation of P dopants, P-doped FeCo microcubes exhibit outstanding electromagnetic wave absorption performance with reflection loss of −51.67 dB at a very thin layer thickness of 1.60 mm, which is superior to the previously reported FeCo-based absorbers. The radar cross section (RCS) of FeCo as an absorber is simulated in the frequency of 2.0–18.0 GHz for the first time, which indicates that the RCS reduction effect is evident in a wide band, and the most significant decline in RCS is from −2.67 to −16.53 dBm2 for horizontal polarization, and from −2.51 to −15.67 dBm2 for vertical polarization. This work presents an outstanding electromagnetic wave absorbing material, and systematically analyzes the contribution of magnetic absorber to the reduction of RCS, which provides a reference for the practical application of magnetic absorbing materials. |
| Databáze: | OpenAIRE |
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