Magnetic properties and applications of glass-coated ferromagnetic microwires
Magnetic properties and applications of glass-coated ferromagnetic microwires
Date
2023-11-10
Authors
Jesús Olivera Cabo
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Abstract
A remarkable magnetic softness and giant magnetoimpedance (GMI) effect at GHz
frequency range havebeen observed in glass-coated microwires subjected to appropriate
postprocessing. Co-based microwires present higher GMI effect. Insulating and flexible
glass-coating allows use of magnetically soft amorphous glass-coated microwires for stresses
or temperature monitoring insmartcomposites using free space facility. Such composites with
magnetic microwire inclusions can present tunable magnetic permittivity. We report on insitu the evolution of the transmission and reflection parameters of the polymer containing
magnetic microwire inclusions during the polymerization process. A remarkable change of
the reflection and transmission in the range of 4-7 GHz upon the matrix polymerization
is observed. Observed dependencies are discussed in terms of the effect of the temperature
and stresses variation on magnetic properties of glass-coated microwires during the
thermoset matrix polymerization. Obtained results are considered as a base for novel sensing
technique allowing non-destructive and non-contact monitoring of the composites utilizing
ferromagnetic glass-coated microwire inclusions with magnetic properties sensitive to tensile
stress and temperature.
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Citation
Zhukova, V., Corte-Leon, P., Allue, A., Gondra, K., Ipatov, M., Blanco, J. M., Olivera, J., & Zhukov, A. (2023). Magnetic Properties and Applications of Glass-coated Ferromagnetic Microwires. Advanced Electromagnetics, 12(3), 69–74.