FeSiBP bulk metallic glasses with high magnetization and excellent magnetic softness

Makino, Akihiro; Kubota, Takeshi; Chang, Chuntao; Makabe, Masahiro; Inoue, Akihisa

doi:10.1016/j.jmmm.2008.04.063

Cited by 104 publications

(38 citation statements)

References 22 publications

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“…Therefore, after after long range diffusion processes material consists of two phases with different chemical compositions. The difference in temperature at the beginning of crystallization (T x ) and the glass transition temperature (T g ) is called a supercooled liquid range [13][14][15][16][17] and is an indirect measure of the glass forming ability. Fig.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Gruszka

Nabiałek

Szota

et al. 2016

Archives of Metallurgy and Materials

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The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe61Co10Zr2.5Hf2.5Me2W2B20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the form of ribbons using melt-spinning method. The X-ray diffraction patterns of investigated samples confirmed their amorphous structure. Based on the analysis of DSC curves characteristic temperatures: glass forming temperature (Tg), crystallization temperature (Tx) and temperature range of the supercooled liquid ΔTx were determined. Small addition of transition metals elements has strong influence on magnetic and thermal parameters of studied materials. The comprehensive studies revealed that in terms of magnetic properties the Ni-addition resulted in highest reduction in coercivity and anisotropy field.

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Section: Resultsmentioning

confidence: 99%

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Gruszka

Nabiałek

Szota

et al. 2016

Archives of Metallurgy and Materials

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“…Among the FeSiB-based quaternary amorphous alloys, a Fe 76 Si 9 B 10 P 5 alloy exhibited a low coercivity of 0.8 A/m and a high saturated magnetic flux density of 1.51 T. 7,8) Since the FeSiBP alloys casted in an open-to-air condition are cost-effective and comparable soft magnetic Fe 78 Si 9 B 13 alloy, it has a great potential for mass production in future. The addition of P to FeSiB amorphous alloys increases the glass forming ability (larger than 2.5 mm in diameter) and improves the soft magnetic properties.…”

Section: )mentioning

confidence: 99%

“…2) Excellent soft magnetic properties, such as a low coercivity (³1 A/m), can be obtained by adding metallic and/or metalloid elements (Nb, 3,4) Al, 5) Zr 6) or P 7,8) ) to the FeSiB based materials.…”

Section: Introductionmentioning

confidence: 99%

Effects of P Addition on Corrosion Properties of Soft Magnetic FeSiB Alloys

2013

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Electrochemical behavior of Fe 76 Si 9 B 15¹x P x alloy (x = 0, 2, 5, 7, 10) ribbons in borate buffer solution of pH 8.45 had been investigated. The as-spun ribbons had an amorphous structure. The lower current densities of P-added FeSiBP ribbons with native oxide films were observed at low applied potentials. The minimum P concentration for enhancing the corrosion properties was estimated to be 5 to 7 at%. The current densities of the FeSiBP ribbons after removal of the oxide films were suppressed to lower levels in comparison with that of Fe 76 Si 9 B 15 ribbons. The formation of a phosphate-containing layer helps passivating the ribbons due to the low solubility of iron phosphate compounds.

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“…1) Fe-based metallic glasses exhibit a high mechanical strength and an excellent soft magnetic properties. [2][3][4] However, the glass forming ability, as well as the thermal stability of the soopercooled liquid, of the Fe-based metallic glasses is low compared to the other metallic glasses such as Zr-and Pdbased alloys. Bulk samples of the Fe-based metallic glasses of the dimension of over 10 mm have not yet been prepared by conventional copper mold casting techniques 1,5) presumably because of their difficulties in keeping a sufficient cooling rate throughout the casted sample to maintain glassy state.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fe Based Metallic Glass–Pd Based Metallic Glass Composite by Slightly Pressured Liquid Phase Sintering

et al. 2010

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To consolidate [(Fe 0:5 Co 0:5 ) 0:75 Si 0:05 B 0:2 ] 96 Nb 4 metallic glass powder to full density, a pressurized liquid phase sintering was employed, which was intended to promote densification by an enhanced wetting of a liquid phase with solid particles. Pd 42:5 Ni 7:5 P 20 Cu 30 metallic glass powder, which has been reported to have a high glass forming ability and the lowest critical cooling rate of glass formation of 0.067 K/s, was chosen as a liquid phase component. The melting point of the Pd 42:5 Ni 7:5 P 20 Cu 30 metallic glass alloy of 763 K is lower than the glass transition temperature of the [(Fe 0:5 Co 0:5 ) 0:75 Si 0:05 B 0:2 ] 96 Nb 4 metallic glass alloy of 808 K. However, the wettability of this alloy with the Pd 42:5 Ni 7:5 P 20 Cu 30 alloy was revealed to be poor. Therefore, sintering pressure was applied to the compacts to promote a viscous flow deformation of solid particles and also to enhance the intergranular permeation of the liquid phase. A specially designed micro-hot press was devised for the pressure-sintering experiment. A pseudo-wettability was observed during pressure-sintering, and the liquid phase was found to fill completely the intergranular space of the powder compact. The relative density of 64-95%, as well as the sintering structure, could be controlled by the punch displacement to squeeze out a part of the liquid phase from the compact. The compressive fracture strength of the obtained metallic glass composite was found to be as high as 2051 MPa, and the fracture was observed to be intragranular type, suggesting a good bonding in the particle-binding phase interface.

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FeSiBP bulk metallic glasses with high magnetization and excellent magnetic softness

Cited by 104 publications

References 22 publications

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Effects of P Addition on Corrosion Properties of Soft Magnetic FeSiB Alloys

Synthesis of Fe Based Metallic Glass–Pd Based Metallic Glass Composite by Slightly Pressured Liquid Phase Sintering

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FeSiBP bulk metallic glasses with high magnetization and excellent magnetic softness

Cited by 104 publications

References 22 publications

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Effects of P Addition on Corrosion Properties of Soft Magnetic FeSiB Alloys

Synthesis of Fe Based Metallic Glass&ndash;Pd Based Metallic Glass Composite by Slightly Pressured Liquid Phase Sintering

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Synthesis of Fe Based Metallic Glass–Pd Based Metallic Glass Composite by Slightly Pressured Liquid Phase Sintering