The effects of Nd-rich phase distribution on deformation ability of hydrogenation-disproportionation-desorption-recombination powders and magnetic properties of the final die-upset Nd-Fe-B magnets
作者： Tingting Song , Haihang Wang , Xu Tang , Wenzong Yin , Zexuan Wang
DOI: 10.1016/J.JMMM.2018.12.111
关键词:
摘要: Abstract Nano-crystalline and micron-crystalline Nd-Fe-B powders were employed to hydrogenation-disproportionation-desorption-recombination (HDDR) process investigate the structural factors of deformation ability in HDDR powders. It was found that magnetic properties final die-upset magnet optimized significantly by nano-crystalline Structure investigation shows variations coercivity attributed Nd-rich phase distribution Meanwhile, enhancement remanence squareness indicated uniform narrow grain size using nano-sized crystalline favor c-axis alignment 2:14:1 phase.
harvard.edu
elsevier.com
sci-hub.se 参考文章(23)
O. Gutfleisch, M. Matzinger, J. Fidler, I.R. Harris, Characterisation of solid-HDDR processed Nd16Fe76B8 alloys by means of electron microscopy Journal of Magnetism and Magnetic Materials. ,vol. 147, pp. 320- 330 ,(1995) , 10.1016/0304-8853(95)00026-7
M. Tokunaga, Y. Nozawa, K. Iwasaki, M. Endoh, S. Tanigawa, H. Harada, Ga added Nd-Fe-B sintered and die-upset magnets IEEE Transactions on Magnetics. ,vol. 25, pp. 3561- 3566 ,(1989) , 10.1109/20.42365
N. Nozawa, H. Sepehri-Amin, T. Ohkubo, K. Hono, T. Nishiuchi, S. Hirosawa, Coercivity enhancement of HDDR-processed Nd–Fe–B permanent magnet with the rapid hot-press consolidation process Journal of Magnetism and Magnetic Materials. ,vol. 323, pp. 115- 121 ,(2011) , 10.1016/J.JMMM.2010.08.043
R. W. Lee, Hot‐pressed neodymium‐iron‐boron magnets Applied Physics Letters. ,vol. 46, pp. 790- 791 ,(1985) , 10.1063/1.95884
Y. Yoshida, Y. Kasai, T. Watanabe, S. Shibata, V. Panchanathan, J. J. Croat, Hot workability of melt-spun Nd-Fe-Co-B magnets Journal of Applied Physics. ,vol. 69, pp. 5841- 5843 ,(1991) , 10.1063/1.347844
K. Suresh, T. Ohkubo, Y.K. Takahashi, K. Oh-ishi, R. Gopalan, K. Hono, T. Nishiuchi, N. Nozawa, S. Hirosawa, Consolidation of hydrogenation–disproportionation–desorption–recombination processed Nd–Fe–B magnets by spark plasma sintering Journal of Magnetism and Magnetic Materials. ,vol. 321, pp. 3681- 3686 ,(2009) , 10.1016/J.JMMM.2009.07.010
Y. Yoshida, N. Yoshikawa, T. Nishio, Y. Kasai, V. Panchanathan, J. J. Croat, Effect of additives on hot deformation behavior of melt-spun Nd-Fe-Co-B magnets Journal of Applied Physics. ,vol. 70, pp. 6363- 6365 ,(1991) , 10.1063/1.349943
P.J. McGuiness, C. Short, A.F. Wilson, I.R. Harris, The production and characterization of bonded, hot-pressed and die-upset HDDR magnets Journal of Alloys and Compounds. ,vol. 184, pp. 243- 255 ,(1992) , 10.1016/0925-8388(92)90498-X
S Sugimoto, N Koike, D Book, T Kagotani, M Okada, K Inomata, M Homma, An improved HDDR treatment for the production of anisotropic Nd–Fe–B ternary powders Journal of Alloys and Compounds. ,vol. 330, pp. 892- 896 ,(2002) , 10.1016/S0925-8388(01)01503-1
S. Liesert, D. Fruchart, P. de Rango, S. Rivoirard, J.L. Soubeyroux, R. Perrier de la Bâthie, R. Tournier, HDDR process of NdFeB with an excess of intergranular Nd-rich phase under magnetic field Journal of Alloys and Compounds. pp. 366- 371 ,(1997) , 10.1016/S0925-8388(97)00412-X