| Autor: |
Luo, Xixi, Cao, Jing, Meng, Guanghui, Zhou, Yingying, Xie, Hui |
| Předmět: |
|
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Sep2020, Vol. 31 Issue 18, p15608-15615, 8p |
| Abstrakt: |
Long-range-ordered Fe3Al was prepared by a mechanical alloying and ordering transformation process. Different ball milling time in the mechanical alloying process induces various amounts of long-range-ordered DO3-type Fe3Al, leading to different magnetic properties. It was found that with the increase of ball milling time, the saturation magnetization values increased to 149 emu/g and then decreased to 96 emu/g. Interestingly, their electromagnetic wave absorption properties are also different. The complex permeability curves are characterized by multiple peaks, which is attributed to the natural resonance. In particular, Fe3Al powder obtained by a 30 h ball milling process is a promising candidate for thin electromagnetic wave absorber, with the minimum reflection loss of − 41.5 dB at the 12.1 GHz when the thickness is 1.5 mm, and the bandwidth below − 10 dB is 4.8 GHz. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink