Preparation of CoFeO/CoFe Particles with Broadband Microwave Absorption by Hydrogen Reduction
Journal of Superconductivity and Novel Magnetism, ISSN: 1557-1947, Vol: 34, Issue: 8, Page: 2217-2225
2021
- 4Citations
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations4
- Citation Indexes4
Article Description
In this work, CoFeO/CoFe particles were prepared by two steps methods of ethylene glycol solvothermal and hydrogen reduction. The structure and morphology of the samples were characterized by X-ray diffraction and field-emission scanning electron microscopy. The samples were mixed with paraffin wax at a mass ratio of 3:1 to prepare rings with an inner diameter of 3.04 mm and an outer of 7 mm, and its electromagnetic parameters were measured by a network vector analyzer. The results show that the dielectric loss and magnetic loss of the composites can be improved after high temperature hydrogen reduction. The optimal reflection loss of −52.14 dB can be achieved at 12.34 GHz in a thickness of only 1.7 mm, when CoFeO was annealed at 500°C for three hours, and the obtained particles can reach less than −20 dB in all C, X, and Ku bands. In all the samples annealing under 500–700°C, the maximum absorption bandwidth over 5.0 GHz can be observed. By comparing the impedance matching properties of CoFeO precursor and CoFeO/CoFe composites, it is found that the tunability of the electromagnetic property in composite structure contributes to the excellent electromagnetic wave absorbing performances.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85107544128&origin=inward; http://dx.doi.org/10.1007/s10948-021-05876-0; https://link.springer.com/10.1007/s10948-021-05876-0; https://link.springer.com/content/pdf/10.1007/s10948-021-05876-0.pdf; https://link.springer.com/article/10.1007/s10948-021-05876-0/fulltext.html; https://dx.doi.org/10.1007/s10948-021-05876-0; https://link.springer.com/article/10.1007/s10948-021-05876-0
Springer Science and Business Media LLC
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