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Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product

The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe–Si–B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critica...

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Detalles Bibliográficos
Autores principales: Tsepelev, Vladimir S., Starodubtsev, Yuri N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7824872/
https://www.ncbi.nlm.nih.gov/pubmed/33466357
http://dx.doi.org/10.3390/nano11010108
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author Tsepelev, Vladimir S.
Starodubtsev, Yuri N.
author_facet Tsepelev, Vladimir S.
Starodubtsev, Yuri N.
author_sort Tsepelev, Vladimir S.
collection PubMed
description The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe–Si–B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critical temperature, the viscosity of multicomponent melts at the cooling stage does not coincide with the viscosity at the heating stage. Above the critical temperature, the structure of the melt is more homogeneous, the amorphous precursor from such a melt has greater plasticity and enthalpy of crystallization and, after nanocrystallization, the material has a higher permeability. The most effective inhibitor elements are insoluble in α-Fe and form a smoothed peak of heat release during crystallization. On the other hand, the finest nanograins and the highest permeability are achieved at a narrow high-temperature peak of heat release. The cluster magnetic structure of a nanocrystalline material is the cause of magnetic inhomogeneity, which affects the shape of the magnetic hysteresis loop and core losses.
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spelling pubmed-78248722021-01-24 Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product Tsepelev, Vladimir S. Starodubtsev, Yuri N. Nanomaterials (Basel) Review The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe–Si–B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critical temperature, the viscosity of multicomponent melts at the cooling stage does not coincide with the viscosity at the heating stage. Above the critical temperature, the structure of the melt is more homogeneous, the amorphous precursor from such a melt has greater plasticity and enthalpy of crystallization and, after nanocrystallization, the material has a higher permeability. The most effective inhibitor elements are insoluble in α-Fe and form a smoothed peak of heat release during crystallization. On the other hand, the finest nanograins and the highest permeability are achieved at a narrow high-temperature peak of heat release. The cluster magnetic structure of a nanocrystalline material is the cause of magnetic inhomogeneity, which affects the shape of the magnetic hysteresis loop and core losses. MDPI 2021-01-05 /pmc/articles/PMC7824872/ /pubmed/33466357 http://dx.doi.org/10.3390/nano11010108 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Tsepelev, Vladimir S.
Starodubtsev, Yuri N.
Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title_full Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title_fullStr Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title_full_unstemmed Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title_short Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product
title_sort nanocrystalline soft magnetic iron-based materials from liquid state to ready product
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7824872/
https://www.ncbi.nlm.nih.gov/pubmed/33466357
http://dx.doi.org/10.3390/nano11010108
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