Advanced Magnetic Microwires for Sensing Applications

Zhukov, A.; Ipatov, M.; Corte-León, Paula; Blanco, Juan Maria; Zhukova, V.

doi:10.1016/b978-0-12-819728-8.00031-0

Encyclopedia of Materials: Electronics 2023

DOI: 10.1016/b978-0-12-819728-8.00031-0

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Advanced Magnetic Microwires for Sensing Applications

A. Zhukov¹,

M. Ipatov²,

Paula Corte-León³

et al.

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2024

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A one-step fabrication of soft-magnetic high entropy alloy fiber with excellent strength and flexibility

Ma,

Kou,

Yang

et al. 2024

Nat Commun

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Soft-magnetic fibers (SMFs) play a crucial role in energy conversion, transmission, and storage within electronic devices. However, conventional SMFs have poor plasticity and are therefore difficult to withstand long-term tensile, torsional, and shear deformation. A high fraction of grain boundaries could improve plastic deformability of conventional SMFs, but deteriorates the coercivity. This severely limits their applications in flexible electronics and multifunctional components. Herein, we propose a strategy to overcome this dilemma, which is realized by coarsening the grains of a Fe 34 Co 29 Ni 29 Al 3 Ta 3 Si 2 high entropy alloy (HEA) fiber containing ordered coherent nanoprecipitates with small lattice misfit via a simple one-step in-rotating-water spinning method. This allows to reduce domain wall pinning and improve dislocation mobility. The resultant micron-diameter soft-magnetic HEA fiber has a tensile strength of 674 MPa at 23% elongation, a low coercivity of 8.1 Oe, a moderate magnetization of 116 emu/g at 10 kOe and a high Curie temperature of 770 K.

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A one-step fabrication of soft-magnetic high entropy alloy fiber with excellent strength and flexibility

Ma,

Kou,

Yang

et al. 2024

Nat Commun

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show abstract

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Advanced Magnetic Microwires for Sensing Applications

Cited by 1 publication

References 122 publications

A one-step fabrication of soft-magnetic high entropy alloy fiber with excellent strength and flexibility

A one-step fabrication of soft-magnetic high entropy alloy fiber with excellent strength and flexibility

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