Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 814, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.152225
Keywords
Soft magnetic materials; Giant magnetoimpedance; Magnetoelastic anisotropy; Magnetostriction; Nanocrystals
Categories
Funding
- 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
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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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