Abstract
We investigated effect of annealing temperature on lattice strain of crystalline FeSiAl alloy powders and related electromagnetic absorption properties for crystalline FeSiAl alloy powder-polymer composites. The lattice strain of the microforged FeSiAl alloy powder gradually decreased with annealing temperature and highly relieved by annealing treatment at 700 °C The magnetic saturation significantly increased by the microforging and subsequent annealing treatment due to increase of the stress relaxation. The simulated power loss in the near-field regime showed high electromagnetic absorption over 31% in above 1 GHz because of annealing effect. From simulation results of magnetic field distributions in the near-field, the ferromagnetic metal powder-polymer composite showed excellent electromagnetic absorption in the GHz frequency range.
| Original language | English |
|---|---|
| Pages (from-to) | 4121-4124 |
| Number of pages | 4 |
| Journal | Physica Status Solidi (A) Applications and Materials Science |
| Volume | 204 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2007 Dec |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering
- Surfaces and Interfaces