| Autor: |
Xiongzuo Zhang, Jingzhi Han, Pengfei Liu, Shunquan Liu, Changsheng Wang, Xin Li, Xiaodong Zhang, Qing Xu, Yingchang Yang, Jinbo Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
AIP Advances, Vol 11, Iss 1, Pp 015104-015104-5 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2158-3226 |
| DOI: |
10.1063/9.0000034 |
| Popis: |
Y2Fe14-xCoxB (X=8.5,9,9.5,10,10.5) melt-spun ribbons were prepared by modifying alloy composition and optimizing melt-spinning technique. It is found that Y2Fe14-xCoxB ribbons with a saturation magnetization of ∼120 emu/g and a coercivity less than 1 Oe can be prepared at x = 9.5 and a wheel rate of 55 m/s. TEM investigations exhibit that the ribbons are composed of Y2(Fe,Co)14B nanocrystals with a mean grain size of ∼5 nm and an amorphous matrix. The ribbons were subsequently pulverized by high energy ball milling technology, and the flakey particles with a length of ∼30 um and a thickness of ∼250 nm were obtained. Finally, the high-frequency electromagnetic properties of the composite magnetic ring formed by mixing flakey particles and paraffin wax in the mass ratio of 2:1 were measured, and the reflection loss (RL) value of the composite is less than -20 dB near 1-2 GHz, which indicates that the material is beneficial to the absorption of electromagnetic wave in 1-2 GHz band. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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