Grain size modulation to optimize the wave-absorbing properties of FeSiCr alloy micropowder
In this paper, the ball-milled flake FeSiCr alloy is subjected to a vacuum annealing temperature between 300 and 500 °C. The results show that the appropriate heat treatment temperature increases the average grain size of the material, eliminates defects and internal stresses, and improves the complex permeability of the material. The optimum wave-absorbing performance of the material is achieved when the heat treatment temperature is 400 °C with the minimum reflectivity RL<sub>min</sub> reaching -56.33 dB at a frequency <i>f</i> of 3.97 GHz, corresponding to the thickness of the wave-absorbing coating, <i>d</i> = 4.0 mm. This work provides an important reference value for application of FeSi-based alloy micropowder soft magnetic materials in the field of microwave absorption.
Authors
- Sajjad Ur Rehman (ORCID: https://orcid.org/0000-0002-9721-9142)
- Yifeng Hu (ORCID: https://orcid.org/0000-0001-7088-6829)
- Wenmiao Zhang
- Changcai Chen (ORCID: https://orcid.org/0000-0003-3655-1675)
- Jian‐Ping Zou (ORCID: https://orcid.org/0000-0002-3585-6541)
- Lei Wang (ORCID: https://orcid.org/0000-0002-6246-4156)
- Weiwei Dong (ORCID: https://orcid.org/0000-0002-3139-2487)
- Haiping Zou
- Tongxiang Liang (ORCID: https://orcid.org/0000-0002-8664-6835)
Institutions
- Institute of New Materials (CN)
- Jiangxi University of Science and Technology (CN)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2024-11-27
- DOI
- https://doi.org/10.1039/d4cp02457e
- Citations
- 4
- Primary Topic
- Electromagnetic wave absorption materials
- Type
- article
- Field-Weighted Citation Impact
- 0.47
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Jiangxi Province