| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10639866 | Materials Science and Engineering: B | 2013 | 8 Pages |
Abstract
A nano/amorphous dual-phase FINEMET microwire was fabricated directly from molten alloy without any interstage annealing by a home-built melt extraction technique (MET). The microstructure, mechanical and pronounced electromagnetic interference shielding (EMI) effectiveness of this dual-phase microwire has been systematically evaluated. The structural analysis reveals that the as-cast FINEMET microwire consists of two distinct structures, i.e., amorphous and nanocrystalline phase due to their different cooling characteristics. Compared with other reported FINEMET alloys, the extracted microwire exhibits a superior high tensile strength of 1800Â MPa. These nanocrystals enabled dual-phase microwires also exhibit large EMI SE values in the frequency range of 8-12Â GHz (X-band) due to the multiple magnetic loss mechanisms associated with their intrinsic structural characteristics. The combination of excellent mechanical properties and electromagnetic properties make this kind of melt-extracted dual-phase FINEMET microwire promising for a range of structure and multifunctional applications.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
H. Wang, F.X. Qin, D.W. Xing, F.Y. Cao, H.X. Peng, J.F. Sun,