Effects of Ti and C additions on the nanostructure and magnetic properties of (Nd, Pr)– (Fe, Co, Ga)–B melt-spun nanocomposite ribbons

Esfahani, Mahnaz Asemi; Gholamipour, Reza; Mirdamadi, Sh.; Abdolhoseini, A.; Ohkubo, T.

doi:10.1016/j.physb.2010.06.013

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…Among these, the Nd 2 Fe 14 B main phase was found to crystallize at 665.2°C. In addition, doping with Tb was observed to reduce the temperatures at which the two main phases crystallize, which can be explained by the free-volume model [18]. The addition of Tb changes the free volume of the meltspun alloy available for the diffusion of atoms during crystallization; consequently, the short range order of the local ribbon structure changes, and diffusivity increases, resulting in a decrease in the crystallization temperature.…”

Section: Methodsmentioning

confidence: 96%

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet

Ding

Cui

Yang

et al. 2020

Mater. Res. Express

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Melt-spun NdFeB-type nanocomposite magnetic materials are important in a number of applications, including electromagnetic sensors, magnetic resonance imaging, and voice coil motors. Herein we investigated the magnetic properties and microstructures of melt-spun Tb x Nd 10−x Fe 80 Co 4 B 6 /Fe 7 Co 3 (x=0.1, 0.2, and 0.3) ribbons by means of x-ray diffractometry, scanning electron microscopy, and magnetization experiments. Tb doping resulted in the formation of a 2:14:1 phase with a higher anisotropy field, which suppressed the separation of Fe 7 Co 3 branch crystals and improved the magnetic properties of the material. Optimum magnetic properties that include a remanence (J r ) of 0.62 T, a coercivity (H ci ) of 612.0 kA m −1 , and a maximum magnetic energy product ((BH) max ) of 94.9 kJ m −3 were obtained for the annealed Tb 0.3 Nd 9.7 Fe 80 Co 4 B 6 /Fe 7 Co 3 ribbon. Furthermore, the effective anisotropy constant, K , eff and the saturation magnetization, Ms, in the nanocomposite were determined by the LATS (law of approach to saturation) method. In this study, the values of K eff and Ms were found to lie between those of hard and soft magnetic phases, consistent with the exchangecoupling concept.

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Section: Methodsmentioning

confidence: 96%

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet

Ding

Cui

Yang

et al. 2020

Mater. Res. Express

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Experimental and theoretical studies on site preference of Ti in Nd2(Fe,Ti)14B

Dong

Sui

Qian

et al. 2015

Journal of Magnetism and Magnetic Materials

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Effects of Pr-Cu-Ti intergranular addition on microstructure and magnetic properties of heavy-rare-earth-free Nd-Fe-B sintered magnets

Zhu

Ding

Zheng

et al. 2022

Journal of Rare Earths

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Effects of Ti and C additions on the nanostructure and magnetic properties of (Nd, Pr)– (Fe, Co, Ga)–B melt-spun nanocomposite ribbons

Cited by 5 publications

References 16 publications

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet

Experimental and theoretical studies on site preference of Ti in Nd2(Fe,Ti)14B

Effects of Pr-Cu-Ti intergranular addition on microstructure and magnetic properties of heavy-rare-earth-free Nd-Fe-B sintered magnets

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Effects of Ti and C additions on the nanostructure and magnetic properties of (Nd, Pr)– (Fe, Co, Ga)–B melt-spun nanocomposite ribbons

Cited by 5 publications

References 16 publications

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe7Co3 nanocomposite permanent magnet

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe7Co3 nanocomposite permanent magnet

Experimental and theoretical studies on site preference of Ti in Nd2(Fe,Ti)14B

Effects of Pr-Cu-Ti intergranular addition on microstructure and magnetic properties of heavy-rare-earth-free Nd-Fe-B sintered magnets

Contact Info

Product

Resources

About

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet

The effect of Tb doping on the magnetic properties and microstructure of a TbNdFeCoB/Fe₇Co₃ nanocomposite permanent magnet