Microstructure and magnetic properties of sintered Nd-Fe-C magnets

Journal Article · Tue Mar 01 04:00:00 EST 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.312359· OSTI ID:37264

Fernengel, W ^[1]

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1. Vacuumschmelze GmbH, Hanau (Germany)

Sintered magnets of nominal composition Nd{sub 15}Fe{sub 77}C{sub 8} (magnet A) and of a Nd- and C-rich composition Nd{sub 28}Fe{sub 63}C{sub 9} (magnet B) have been prepared by the conventional powder metallurgy. The magnets show a nearly isotropic behavior, the magnetic polarization at an applied magnetic field of 1,350 kA/m was about J(1,350 kA/m) = 1.1 T, the coercivity of the polarization, H{sub cJ}, was rather small, the highest values in the annealed magnets were only about 250 kA/m. From these results the authors can make the conclusion, that the preparation of sintered Nd-Fe-C composition by the conventional powder metallurgy is not promising for the production of permanent magnets.

• OSTI ID: 37264
• Report Number(s): CONF-930860--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
CARBON ADDITIONS
EXPERIMENTAL DATA
FABRICATION
INTERMETALLIC COMPOUNDS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NEODYMIUM ALLOYS
PERMANENT MAGNETS