STRUCTURE AND MAGNETIC-PROPERTIES OF LOW-NEODYMIUM ND-FE-B POWDERS BYMECHANICAL ALLOYING

Authors
CHEN SK HUANG TA DUH CS CHIN TS YAO JM
Citation
Sk. Chen et al., STRUCTURE AND MAGNETIC-PROPERTIES OF LOW-NEODYMIUM ND-FE-B POWDERS BYMECHANICAL ALLOYING, IEEE transactions on magnetics, 31(6), 1995, pp. 3644-3646
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
31
Issue
6
Year of publication
1995
Part
2
Pages
3644 - 3646
Database
ISI
SICI code
0018-9464(1995)31:6<3644:SAMOLN>2.0.ZU;2-5
Abstract
Low-neodymium Nd15-xFe77-2xB8+3x powders were prepared by a mechanical alloying process using commercial Nd-Fe-B and Fe-B ingots as starting materials, Several iron boride phases, including Fe3B, Fe2B, and FeB, were observed to coexist with the Nd2Fe14B phase for the low-Nd compo sitions. Different process parameters are required to prepare low-Nd p owders with optimum coercivity and microstructure. Coercivity of 10.5 to 4.5 kOe was obtained for x=0.0 to 4.5. The squareness ratio is clos e to an isotropic value of 0.5 for the studied compositions, indicatin g the interaction between nanoscale Nd2Fe14B and iron boride phases is not strong.