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Rare Metals

Erschienen in:

01.08.2014

Structural and magnetic properties of single-stage hot deformed NdFeB magnets prepared by different initial densities

verfasst von: Biao Chen, Jun Li, Ying Liu, Ren-Quan Wang, Li-Xian Lian

Erschienen in: Rare Metals | Ausgabe 4/2014

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Abstract

The effects of initial density on the magnetic properties of NdFeB magnets prepared by single-stage hot deformation were investigated in this work. The results show that the values of maximum energy product (BH)_m and coercivity H _cj decrease with the increase of initial density. Under optimum condition, an anisotropic magnet with a maximum energy product of 264 kJ·m⁻³ was produced using the initial density of 4.4 g·cm⁻³. The influence of initial density on the magnetic properties was discussed on the basis of microstructure and strain energy. It is concluded that the thicker platelet grains are obtained along the Nd₂Fe₁₄B base plane with the initial density increasing. It is mainly because that grain rotation is restricted by high strain energy, which results from high initial density.

Vorheriger Artikel Electrodeposition of Ni–Co alloy films onto titanium substrate

Nächster Artikel Oxygen content and magnetic properties of composites La0.75Sr0.25MnO3±δ calcined at different temperatures

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[1]

Croat JJ, Herbst JF, Lee RW, Pinkerton FE. Pr-Fe and Nd-Fe based materials: a new class of high-performance permanent magnets. J Appl Phys. 1984;55(3):2078.CrossRef

[2]

Mishra RK, Brewer EG, Lee RW. Grain growth and alignment in hot deformed Nd-Fe-B magnets. J Appl Phys. 1988;63(4):3528.CrossRef

[3]

Lee RW, Brewer EG, Schaffel NA. Processing of neodymium-iron-boron melt-spun ribbons to fully dense magnets. IEEE Trans Magn. 1985;21(9):1958.CrossRef

[4]

Yang JP, An KS, Song CY, Won MK, Jeoung TS, Yang SC. A new method for the preparation of anisotropic Nd-Fe-B-based magnets. IEEE Trans Magn. 1997;33(9):3820.CrossRef

[5]

Li Y, Kim YB, Kim MJ, Suhr DS, Kim TK, Kim CO. Simple hot deformation process for fabrication of anisotropic NdFeB magnet. IEEE Trans Magn. 2000;36(9):3309.

[6]

Tian H, Jin HM, Jin DZ, Li Y, Zhu MY. Microstructure and magnetic properties of anisotropic Nd-Fe-B magnets fabricated by single-stage hot deformation. J Rare Earths. 2006;24(12):318.

[7]

Li Y, Zhu MY, Song CB, Yao MY, Tian H. Design and fabrication of anisotropic NdFeB magnets. J Magn Magn Mater. 2006;174(2):296.

[8]

Li Y, Kim YB, Wang L, Suhr DS, Kim TK, Kim CO. The influence of the powder particle size on the anisotropic properties of NdFeB magnets produced by single-stage hot deformation. J Magn Magn Mater. 2001;223(2):279.CrossRef

[9]

Li Y, Kim YB, Yoon TS, Suhr DS, Kima TK, Kima CO. Coercivity enhancement by Zn addition in hot deformed NdFeB magnets. J Magn Magn Mater. 2002;242–245(8):1369.CrossRef

[10]

Li Y, Kim YB, Yoon TS, Jin DZ, Suhr DS, Kim CO. Effects of some additives on the magnetic properties of single stage hot deformed NdFeB magnets. J Appl Phys. 2002;91(5):7887.CrossRef

[11]

Lin M, Wang HJ, Yi PP, Yan AR. Effects of excessive grain growth on the magnetic and mechanical properties of hot-deformed NdFeB magnets. J Magn Magn Mater. 2010;322(8):2268.CrossRef

[12]

Ma YL, Liu Y, Li J, Du HL, Gao J. Anisotropic nanocomposite Nd₂Fe₁₄B/α-Fe magnets prepared by spark plasma sintering. IEEE Trans Magn. 2009;45(6):2566.CrossRef

[13]

Kwon Hae-woong, Kang YS, Choi GS, Yu JH. Effect of grain size and die-upset temperature on texture in die-upset Nd-Fe-B magnet. IEEE Trans Magn. 2009;45(6):2590.CrossRef

[14]

Kwon HW, Yu JH. Texture studies on die-upset Nd-lean Nd-Fe-(Cu)-Ga-B alloy. IEEE Trans Magn. 2009;45(10):4435.CrossRef

[15]

Liu Y, Ma YL, Li J, Li CY, Xie FY, Chu LH. Magnetic properties and microstructure studies of hot-deformed Nd-Fe-B magnets with Zr addition. IEEE Trans Magn. 2010;46(7):2605.

[16]

Li AH, Li W, Lai B, Wang HJ, Zhu MG, Pan W. Investigation on microstructure, texture, and magnetic properties of hot deformed Nd-Fe-B ring magnets. J Appl Phys. 2010;107(5):09A725.CrossRef

[17]

Li L, Graham CD Jr. The origin of crystallographic texture produced during hot deformation in rapidly-quenched NdFeB permanent magnets. IEEE Trans Magn. 1992;28(9):2130.CrossRef

[18]

Ren CD, Jin WY, Zhou HB, Li JZ, Song XM. Key preparation techniques for sintered Nd-Fe-B magnets of high-performance. Chin J Rare Met. 2013;37(2):249.

Titel: Structural and magnetic properties of single-stage hot deformed NdFeB magnets prepared by different initial densities
verfasst von: Biao Chen
Jun Li
Ying Liu
Ren-Quan Wang
Li-Xian Lian
Publikationsdatum: 01.08.2014
Verlag: Nonferrous Metals Society of China
Erschienen in: Rare Metals / Ausgabe 4/2014
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-014-0336-x

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