A comprehensive study of microstructures and soft magnetic properties of amorphous Co66Fe4Mo2Si16B12 tape wound core

Zhou, Xiao; Liu, Ruirui; Zhou, Haitao

doi:10.1016/j.jmmm.2019.165729

Cited by 9 publications

(3 citation statements)

References 26 publications

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“…The crystallization temperature ≈800 K corresponds well with similar data from the literature. [15,48] The Curie temperature for Co 3 B is between 700 and 800 K according to the literature. [49] The third peak very well corresponds with XRD diffraction (T = 950 K, and at 1025 K), where possibly an atom diffusion between subsequent phases occurs to form thermodynamically more stable alloys.…”

Section: Resultsmentioning

confidence: 99%

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

Sharifikolouei,

Kozieł,

Bała

et al. 2023

Adv Elect Materials

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Thin and flexible materials that can provide efficient electromagnetic interference (EMI) shielding are urgently needed, particularly those that can be rapidly processed and withstand harsh environments. Cobalt‐based metallic glasses stand out as prime candidates due to their excellent soft magnetic properties, satisfactory shielding features, and mechanical properties. Herein, a recently developed technique is used to fabricate metallic glass microfibers from Co66Fe4Mo2Si16B12 alloy. The produced microfibers are characterized for their size and uniformity by scanning electron microscopy and their amorphous structure is confirmed by X‐ray diffraction (XRD) and differential scanning calorimetry (DSC). The cobalt‐based metallic glass microfibers show an EMI shielding factor that reaches five in the static regime and obtains an up to 25‐fold increase of the attenuation constant in the Ku frequency band. This performance originates from the combination of soft magnetic properties and excellent electrical conductivity. In addition, the flexible microfibers exhibit excellent hardness and elasticity making them suitable for EMI shielding of complex geometries. Their hardness and elastic modulus are measured by nanoindentation to be 11.31 ± 0.60 GPa, and 110.54 ± 11.24 GPa, respectively.

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Section: Resultsmentioning

confidence: 99%

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

Sharifikolouei,

Kozieł,

Bała

et al. 2023

Adv Elect Materials

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show abstract

“…It means at this temperature; there has been no detection of crystallization peak. Meanwhile, the broadened diffuse scattering diffraction peak of the sample is replaced by the shattered diffraction peaks and this indicates that the amorphous alloy is almost crystallized (Zhou et al, 2020). At 450℃ the shattered diffraction peaks indicates that the crystallization process started to a good extent.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

“…Magnetic amorphous alloys have attracted great attention during several years, for both their fundamental physics of magnetism and technological levels (Zhou et al, 2020). During the fabrication of metallic glasses there may be some development of fault which reduces the performance of these soft magnetic metals.…”

Section: Introductionmentioning

confidence: 99%

Growth Effect of Crystallites in Fe82Si8B10 Amorphous Ribbon

Sikder

Nath

Khan³

et al. 2022

J. of Eng. Sci.

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Fe82Si8B10 amorphous ribbon which containing 82% of Fe and 18% of B and Si were prepared using rapid solidification technique. The samples were constantly annealed for 1 hour in the temperature range of 350°C-600°C. X-ray diffraction analysis (XRD) displays a large peak which is the diffusion hallow suggesting the amorphousity in its origin and formation of crystalline phase with the increment of annealing temperature at 450oC. The magnetic ordering of the ribbon is determined as temperature functions by both AC and DC magnetization. At 450°C, the saturation magnetization (Ms) was found 143 emu/gm and with better value of real part of initial permeability at 450°C as well as better relative quality factor (RQF) was observed at the same temperature. The results are explained as due to higher heating rates than this Si diffuse in amorphous and lost the soft magnetic properties. Journal of Engineering Science 13(1), 2022, 1-8

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Effect of adding Fe11Ni6 alloy and annealing temperature on magnetic properties of Fe32Si4.4B4CrC1.4 powder cores

Meng

Yang

Chen

et al. 2023

J Mater Sci: Mater Electron

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A comprehensive study of microstructures and soft magnetic properties of amorphous Co66Fe4Mo2Si16B12 tape wound core

Cited by 9 publications

References 26 publications

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

Growth Effect of Crystallites in Fe82Si8B10 Amorphous Ribbon

Effect of adding Fe11Ni6 alloy and annealing temperature on magnetic properties of Fe32Si4.4B4CrC1.4 powder cores

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