Highly anisotropic Fe3C microflakes constructed by solid-state phase transformation for efficient microwave absorption
Hangzhou Dianzi University · Northeastern University
Abstract
Abstract Soft magnetic materials with flake geometry can provide shape anisotropy for breaking the Snoek limit, which is promising for achieving high-frequency ferromagnetic resonances and microwave absorption properties. Here, two-dimensional (2D) Fe 3 C microflakes with crystal orientation are obtained by solid-state phase transformation assisted by electrochemical dealloying. The shape anisotropy can be further regulated by manipulating the thickness of 2D Fe 3 C microflakes under different isothermally quenching temperatures. Thus, the resonant frequency is adjusted effectively from 9.47 and 11.56 GHz under isothermal quenching from 700 °C to 550 °C. The imaginary part of the complex permeability can reach…
Citation impact
- FWCI
- 15.31
- Percentile
- 100%
- References
- 53
Authors
11- RZRongzhi ZhaoCorresponding
Hangzhou Dianzi University, Northeastern University
- TGTong Gao
Hangzhou Dianzi University, Northeastern University
- YLYixing Li
Hangzhou Dianzi University, Northeastern University
- ZSZhuo Sun
Northeastern University
- ZZZhengyu Zhang
Hangzhou Dianzi University, Northeastern University
Topics & keywords
- Materials science
- Reflection loss
- Anisotropy
- Microwave
- Isothermal process
- Absorption (acoustics)
- Quenching (fluorescence)
- Phase (matter)