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Multi-Layer Magnetic Shields Based on Fe-Based Nanocrystalline and Co-Based Amorphous Ribbons.

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Title: Multi-Layer Magnetic Shields Based on Fe-Based Nanocrystalline and Co-Based Amorphous Ribbons.
Authors: Liang, Yanfeng1,2 (AUTHOR), Liu, Benchang1,2 (AUTHOR), Ma, Haoran2,3 (AUTHOR) panlining2013@nimte.ac.cn, Pan, Lining1,2 (AUTHOR), He, Aina2,3 (AUTHOR), Dong, Yaqiang2,3 (AUTHOR), Man, Qikui2,3 (AUTHOR), Li, Jiawei2,3 (AUTHOR) lijw@nimte.ac.cn
Source: Materials (1996-1944). May2026, Vol. 19 Issue 10, p1986. 15p.
Subjects: Magnetic shielding, Layer structure (Solids), Amorphous substances, Finite element method, Nanocrystals, Composite materials, Magnetic permeability
Abstract: We constructed a multi-layer composite magnetic shield composed of Fe-based nanocrystalline (FN) and Co-based amorphous (CA) ribbons, and focused on the influence of the number of layers and their arrangement on the shielding effectiveness (SE). Finite element analysis (FEA) and layer-by-layer inversion calculations were performed to analyze the attenuation process of the magnetic field between shield layers. Increasing the number of shield layers improves the maximum value of SE (SEmax) and significantly broadens the working range (WWR). In a weak magnetic field, CA exhibits higher shielding performance, whereas FN is better in a strong magnetic field. The FN/FN/CA combination (FN is closer to the field source) exhibits an SEmax of up to 51.7 dB within a WWR of 674.3 A/m, and demonstrates a 14.4% improvement in SE compared to FN/FN/FN combination across the entire tested magnetic field range. Finally, a gradient layering design is proposed that enables each layer to operate within its optimal permeability range, thereby improving the overall SE and broadening the effective working magnetic field range. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 194116822
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PubTypeId: academicJournal
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  Label: Title
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  Data: Multi-Layer Magnetic Shields Based on Fe-Based Nanocrystalline and Co-Based Amorphous Ribbons.
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  Data: <searchLink fieldCode="AR" term="%22Liang%2C+Yanfeng%22">Liang, Yanfeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Benchang%22">Liu, Benchang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Haoran%22">Ma, Haoran</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> panlining2013@nimte.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Pan%2C+Lining%22">Pan, Lining</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Aina%22">He, Aina</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dong%2C+Yaqiang%22">Dong, Yaqiang</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Man%2C+Qikui%22">Man, Qikui</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jiawei%22">Li, Jiawei</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> lijw@nimte.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. May2026, Vol. 19 Issue 10, p1986. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+shielding%22">Magnetic shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Layer+structure+%28Solids%29%22">Layer structure (Solids)</searchLink><br /><searchLink fieldCode="DE" term="%22Amorphous+substances%22">Amorphous substances</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+permeability%22">Magnetic permeability</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: We constructed a multi-layer composite magnetic shield composed of Fe-based nanocrystalline (FN) and Co-based amorphous (CA) ribbons, and focused on the influence of the number of layers and their arrangement on the shielding effectiveness (SE). Finite element analysis (FEA) and layer-by-layer inversion calculations were performed to analyze the attenuation process of the magnetic field between shield layers. Increasing the number of shield layers improves the maximum value of SE (SEmax) and significantly broadens the working range (WWR). In a weak magnetic field, CA exhibits higher shielding performance, whereas FN is better in a strong magnetic field. The FN/FN/CA combination (FN is closer to the field source) exhibits an SEmax of up to 51.7 dB within a WWR of 674.3 A/m, and demonstrates a 14.4% improvement in SE compared to FN/FN/FN combination across the entire tested magnetic field range. Finally, a gradient layering design is proposed that enables each layer to operate within its optimal permeability range, thereby improving the overall SE and broadening the effective working magnetic field range. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/ma19101986
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 1986
    Subjects:
      – SubjectFull: Magnetic shielding
        Type: general
      – SubjectFull: Layer structure (Solids)
        Type: general
      – SubjectFull: Amorphous substances
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Composite materials
        Type: general
      – SubjectFull: Magnetic permeability
        Type: general
    Titles:
      – TitleFull: Multi-Layer Magnetic Shields Based on Fe-Based Nanocrystalline and Co-Based Amorphous Ribbons.
        Type: main
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          Name:
            NameFull: Liang, Yanfeng
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            NameFull: Liu, Benchang
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            NameFull: Ma, Haoran
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            NameFull: Pan, Lining
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            NameFull: He, Aina
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            NameFull: Man, Qikui
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            – D: 15
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 19961944
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              Value: 19
            – Type: issue
              Value: 10
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            – TitleFull: Materials (1996-1944)
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