Controlled solidification and magnetic properties of Pr‐Fe‐B‐Cu and Nd‐Fe‐B alloys
作者： R. N. Faria , J. S. Abell , I. R. Harris
DOI: 10.1063/1.350060
关键词:
摘要: The as‐cast microstructure of the alloys Pr20.5Fe73.8B3.7Cu2 and Nd16Fe76B8 have been modified using a vertical floating‐zone (VFZ) technique. By annealing VFZ material at 1000 °C, magnetic properties increased substantially for Pr‐Fe‐B‐Cu alloy. growth rates up to 38 cm/h not sufficient reproduce ingot Cast magnets prepared in very small chill mold showed best properties, with (BH)max=98 kJ/m3. Sintered hydrogen decrepitation process from large grained Nd‐Fe‐B zoned exhibit inferior squareness factors those ingot.
harvard.edu
scitation.org
sci-hub.se 参考文章(8)
J.S. Abell, I.R. Harris, Modification of the microstructure of Nd/sub 15/Fe/sub 77/B/sub 8/ alloy by controlled solidification IEEE Transactions on Magnetics. ,vol. 24, pp. 1620- 1622 ,(1988) , 10.1109/20.11549
D. Fort, Crystal growth of rare earth metals using the float zoning method Journal of Crystal Growth. ,vol. 94, pp. 85- 96 ,(1989) , 10.1016/0022-0248(89)90606-4
T. Shimoda, K. Akioka, O. Kobayashi, T. Yamagami, T. Ohki, M. Miyagawa, T. Yuri, Hot-working behavior of cast Pr-Fe-B magnets ieee international magnetics conference. ,vol. 25, pp. 4099- 4104 ,(1989) , 10.1109/20.42535
D. Fort, D.W. Jones, B.J. Beaudry, K.A. Gschneidner, Zone refining of rare earth metals: Lanthanum, cerium and gadolinium Journal of The Less Common Metals. ,vol. 81, pp. 273- 292 ,(1981) , 10.1016/0022-5088(81)90034-5
I.R. Harris, The potential of hydrogen in permanent magnet production Journal of The Less Common Metals. ,vol. 131, pp. 245- 262 ,(1987) , 10.1016/0022-5088(87)90524-8
Heng-Zhi Fu, Xin-Cai Liu, Zheng-Xing Shi, Le-Yi Wang, Wei Tang, Chang-Gui Li, Hou-Ding Song, The studies of directional solidified RE-Co magnets ieee international magnetics conference. ,vol. 25, pp. 3797- 3799 ,(1989) , 10.1109/20.42436
H. Lemaire, P. Tenaud, F. Vial, B. Labulle, Chemical segregation in small cast Nd-Fe-B ingots Journal of Magnetism and Magnetic Materials. ,vol. 83, pp. 234- 236 ,(1990) , 10.1016/0304-8853(90)90498-F
I. R. Harris, Concerted European action on magnets Metals and Materials. ,vol. 7, pp. 217- 220 ,(1991)