Magnetic Properties of Fe-Based Amorphous Powder Cores Produced by the Cold-Pressing Method.

正昭, 八木; 宏之, 中西; 勇, 大塚; 裕史, 山本; 秀機, 佐武; 京宣, 新谷

doi:10.3379/jmsjmag.26.513

Cited by 11 publications

(2 citation statements)

References 6 publications

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“…The values of relative permeability at 100 kHz are 43-47. The core losses of the amorphous Fe-Cr-B-C-Si powder cores at 100 kHz and 100 mT are 305-362 kW/m 3 , which are much lower than those of the crystalline powder cores (Ni-50 mass% Fe and Fe-9 mass % Si-6 mass% Al) [14] and the previously reported amorphous (Fe, Cr)-(Si, B)-C powder cores [15][16][17][18].…”

Section: Thermec 2021mentioning

confidence: 64%

Thermal and Magnetic Properties of Ternary Fe-B-C and Quaternary Fe-B-C-Si Alloys with High Glass-Forming Ability and High Magnetization

Bitoh

Hibino

Koshiba

2021

MSF

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The thermal and magnetic properties of the ternary Fe-B-C and quaternary Fe-B-C-Si amorphous alloys have been investigated. It has been discovered that the ternary Fe-B-C amorphous alloys with compositions close to Fe79.3B14.3C6.4 exhibit a glass transition prior to crystallization on heating. The alloys also have high mass magnetization of 176–178 A m2/kg at room temperature. In addition, the glass-forming ability (GFA) of the alloys is significantly enhanced by the addition of 4 at% Si while maintaining high magnetization of approximately 170 A m2/kg at room temperature. In was found that the Fe23(B, C)6 phase (Cr23C6-type) is formed during crystallization of the quaternary Fe-B-C-Si alloys with the large GFA. It was also confirmed that the amorphous powders of Fe-Cr-B-C-Si alloys could be produced by a conventional water atomization method and exhibit the low core losses of 305–362 kW/m3 at 100 kHz and 100 mT. The quaternary Fe-B-C-Si amorphous alloys with high GFA, high magnetization and low core losses are suitable for a core material of various magnetic components.

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Section: Thermec 2021mentioning

confidence: 64%

Thermal and Magnetic Properties of Ternary Fe-B-C and Quaternary Fe-B-C-Si Alloys with High Glass-Forming Ability and High Magnetization

Bitoh

Hibino

Koshiba

2021

MSF

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show abstract

“…The properties of the water atomized amorphous powders and the powder cores are summarized in Table 1 powder. Spherical amorphous powders with median diameter (D 50 : the particle diameter corresponding to 50% in the volume- and Fe-9 mass % Si-6 mass% Al) 17) and the previously reported amorphous (Fe, Cr)-(Si, B)-C powder cores [18][19][20][21] .…”

Section: Fe-cr-b-c-si Powdersmentioning

confidence: 99%

Development of Ternary Fe-B-C and Quaternary Fe-B-C-Si Amorphous Alloys with High Glass-Forming Ability and High Magnetization

Bitoh

Hibino

Koshiba³

2018

J. Jpn. Soc. Powder Powder Metallurgy

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The various properties of the ternary Fe-B-C and quaternary Fe-B-C-Si amorphous alloys have been investigated. It was discovered that some ternary Fe-B-C amorphous alloys with the Fe content close to that of the Cr 23 C 6-type metastable Fe 23 (B, C) 6 phase exhibit a glass transition prior to crystallization on heating. The alloys with the glass transition also have high mass magnetization of 176~178 A m 2 /kg at room temperature in an as-quenched state. In addition, the glass-forming ability (GFA) of the alloys is significantly enhanced by the addition of 4 at% Si and by adjusting the composition toward the slightly lower Fe and higher B side while maintaining high magnetization of approximately 170 A m 2 /kg at room temperature in an as-quenched state. It was also confirmed that the amorphous powders of Fe-Cr-B-C-Si alloys could be produced by a conventional water atomization method and exhibit the low core losses of 305~362 kW/m 3 at 100 kHz and 100 mT. The quaternary Fe-B-C-Si amorphous alloys with high GFA, high magnetization and low core losses are suitable for a core material of various magnetic components.

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Fe-based amorphous soft magnetic composites with excellent magnetic properties fabricated via low-pressure hot compacting

Zhang,

Li,

Sun

et al. 2024

Ceramics International

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Magnetic Properties of Fe-Based Amorphous Powder Cores Produced by the Cold-Pressing Method.

Cited by 11 publications

References 6 publications

Thermal and Magnetic Properties of Ternary Fe-B-C and Quaternary Fe-B-C-Si Alloys with High Glass-Forming Ability and High Magnetization

Thermal and Magnetic Properties of Ternary Fe-B-C and Quaternary Fe-B-C-Si Alloys with High Glass-Forming Ability and High Magnetization

Development of Ternary Fe-B-C and Quaternary Fe-B-C-Si Amorphous Alloys with High Glass-Forming Ability and High Magnetization

Fe-based amorphous soft magnetic composites with excellent magnetic properties fabricated via low-pressure hot compacting

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