期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 814, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.152225
关键词
Soft magnetic materials; Giant magnetoimpedance; Magnetoelastic anisotropy; Magnetostriction; Nanocrystals
资金
- Spanish MCIU [PGC2018-099530-B-C31]
- Government of the Basque Country [PIBA 2018-44]
- Russian Foundation for Basic Research [16-53-48012]
- Act 211 Government of the Russian Federation [02. A03.21.0011]
- Ministry of Education and Science of the Russian Federation [211]
- European funding (ERDF)
- European funding (ESF)
- Government of the Basque Country under Elkartek RTM 4.0 projects
We present an overview of the factors as well as post processing tools allowing optimization of magnetic softness and GMI effect of rapidly quenched materials: microwires and ribbons. Generally, low coercivity and high GMI effect have been observed in as-prepared Co-rich compositions. Annealing at adequate conditions can be very effective for manipulation of the magnetic properties and GMI effect of amorphous and nanocrystalline rapidly quenched materials. After annealing of Co-rich compositions, we can observe transformation of inclined hysteresis loops to rectangular. However, at certain annealing conditions GMI effect can be improved. Using stress-annealing, GMI effect of both Fe-rich and Co-rich microwires as well as of amorphous ribbons can be improved. On the other hand, in Fe-rich FeCuNb-SiB microwires after appropriate annealing we observed considerable magnetic softening and GMI effect enhancement. The other promising post-processing allowing GMI effect optimization is Joule heating. (C) 2019 Elsevier B.V. All rights reserved.
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