High Bs nanocrystalline Fe84−x−yCuxNbySi4B12 alloys (x=0.0–1.4, y=0.0–2.5)

Ohta, M.; Yoshizawa, Y.

doi:10.1016/j.jmmm.2009.01.018

Cited by 69 publications

(12 citation statements)

References 15 publications

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“…It has been proved that B s reflects the ratio of the volume fraction of the crystalline phase (V c /V) to that of the amorphous phase (V a /V) and can be expressed as B s = B sc V c /V + B sa V a /V, where B sc and B sa are the saturation magnetic flux densities of the crystalline and amorphous phases, respectively. 20 The B sc of the a-Fe phase is larger than the B sa . 21 As B sc of the a-Fe phase is almost constant, the monotonic decrease of B s is expected owing to the slight reduction of crystallinity and the marked decrease of the saturation magnetic flux densities of the residual amorphous phases caused by Nb substitution of Fe.…”

Section: Resultsmentioning

confidence: 98%

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Wan

Zhang

et al. 2016

Journal of Elec Materi

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In order to develop Fe-based nanocrystalline soft magnetic alloys with high saturation magnetic flux density (B s ) and good manufacturability, the effect of the Nb content on the thermal stability, microstructural evolution and soft magnetic properties of Fe 78Àx Si 13 B 8 Nb x Cu 1 (x = 0, 1, 2 and 3) alloys were investigated. It is found that proper Nb addition is effective in widening the optimum annealing temperature range and refining the a-Fe grain in addition to enhancing the soft magnetic properties. For the representative Fe 76 Si 13 B 8 Nb 2 Cu 1 alloy, the effective annealing time can be over 60 min in the optimal temperature range of 500-600°C. FeSiBNbCu nanocrystalline soft magnetic alloys with desirable soft magnetic properties including high B s of 1.39 T, low coercivity (H c ) of 1.5 A/m and high effective permeability (l e ) of 21,500 at 1 kHz have been developed. The enhanced soft magnetic performance and manufacturability of the FeSiBNbCu nanocrystalline alloys are attributed to the high activated energy for the precipitation of a-Fe(Si) and the second phase. These alloys with excellent performance have promising applications in electromagnetic fields like inductors.

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Section: Resultsmentioning

confidence: 98%

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Wan

Zhang

et al. 2016

Journal of Elec Materi

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“…In addition, the formula (1) also had the characteristics of simple form, and the two parameters P o and D f could be determined by the small amount of available experimental data, and could be applied in practical engineering design very easily. Existing research suggested that, the 1J79 soft magnetic alloy with high permeability magnetic loss P(f) had shown a similar fractal structure [10]. Fig.…”

Section: Resultsmentioning

confidence: 97%

“…The magnetic losses of the samples were measured at the frequency range of 100K H Z~6 00 KH Z with the B-H instrument under the working magnetic induction value Bm of 0. 10 .04T, and the magnetic loss P (f) values were listed in Table 1. The thickness of thin ribbon had a remarkable effect on the magnetic loss.…”

Section: Resultsmentioning

confidence: 99%

Study on magnetic loss properties of ultra-thin nanocrystalline soft magnetic alloy Fe73.4Cu0.6Nb3.5Si13.5B9.0

Qian¹,

Hao²,

Song³

et al. 2016

Proceedings of the International Symposium on Mechanical Engineering and Material Science

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Abstract. The magnetic loss characteristics of ultra-thin nanocrystalline magnetic alloy Fe 73.4 Cu 0.6 Nb 3.5 Si 13.5 B 9.0 with 14μm were studied, and compared with conventional nanocrystalline magnetic alloy strip with the thickness of the 26μm. It was found that reducing the thickness of alloy strip could significantly reduce the magnetic loss (P) of the alloys. The frequency magnetic loss (P f ) of nanocrystalline soft magnetic alloy has shown a typical fractal structure, namely, P f = P O f Df . The strip thickness had a significant impact on the variation of the fractal dimension D f , the parameter Po, and its work magnetic induction B m .

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“…As α-Fe phase has stronger magnetocrystalline anisotropy and higher saturation magnetization than residual amorphous phase, its precipitation will lead to the increase of coercive force and saturation magnetization which are the combination of performance of α-Fe and amorphous phase [4]. So the rapid increase of H c and M s during the half minute (from t=3 to t=3.5 min) for (Fe 83.3 Si 4 B 8 P 4 Cu 0.7 ) 100-x Al x (x=0−1.5) alloys is not difficult to understand if we take the rapid precipitation and growth of α-Fe into account.…”

Section: Resultsmentioning

confidence: 99%

Magnetic properties and crystallization behavior of nanocrystalline FeSiBPCuAl alloys

Dong

Zhou

et al. 2010

Sci. China Technol. Sci.

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Magnetic properties and crystallization behavior of nanocrystalline (Fe 83.3 Si 4 B 8 P 4 Cu 0.7 ) 100-x Al x (x=0−1.5 at%) alloys were investigated in this study. Experimental results show that coercive force decreases and saturation magnetization slightly decreases with the increase of Al content, but the glass forming ability has been improved at the same time. Crystallization behavior including the evolution of microstructure has also been studied. The growth of α-Fe precipitated from the matrix is quick when it is annealed by conventional method and the mean size of α-Fe grains increases from below 2−3 nm to 18−29 nm. Nanocrystalline (Fe 83.3 Si 4 B 8 P 4 Cu 0.7 ) 99 Al 1 alloy with coercive force of 8.9 A/m and saturation magnetization of 187 emu/g is probably a promising candidate in the field of soft magnetic materials. nanocrystalline alloy, glass forming ability, saturation magnetization, coercive force Citation: Dong B S, Zhou S X, Hu M J, et al. Magnetic properties and crystallization behavior of nanocrystalline FeSiBPCuAl alloys.

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High Bs nanocrystalline Fe84−x−yCuxNbySi4B12 alloys (x=0.0–1.4, y=0.0–2.5)

Cited by 69 publications

References 15 publications

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Study on magnetic loss properties of ultra-thin nanocrystalline soft magnetic alloy Fe73.4Cu0.6Nb3.5Si13.5B9.0

Magnetic properties and crystallization behavior of nanocrystalline FeSiBPCuAl alloys

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