High-coercivity Nd-Fe-B-type permanent magnets with less dysprosium

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/20.104582· OSTI ID:5963138

Hirosawa, S; Tomizawa, H; Mino, S; Hamamura, A ^[1]

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1. Sumitomo Special Metals Co., Ltd., 2-15-17 Egawa, Shimamoto-cho, Osaka 618 (JP)

Effects of V or Mo addition on microstructure and magnetic properties of Nd-Dy-Fe-Co-B sintered magnets have been studied. It is shown that these additives increase the intrinsic coercivity of cobalt- containing Nd-Fe-B-type sintered magnets, serving to reduce the amount of Dy required for thermal stability. Corrosion resistance in a humid atmosphere is also improved by these elements.

• OSTI ID: 5963138
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (USA) Vol. 26:5; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALLOYS
BORIDES
BORON COMPOUNDS
CHEMICAL COMPOSITION
COBALT BORIDES
COBALT COMPOUNDS
COERCIVE FORCE
CORROSION RESISTANCE
CRYSTAL STRUCTURE
DYSPROSIUM BORIDES
DYSPROSIUM COMPOUNDS
IRON BORIDES
IRON COMPOUNDS
MAGNETIC PROPERTIES
MAGNETS
MATERIALS TESTING
MICROSTRUCTURE
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
NEODYMIUM BORIDES
NEODYMIUM COMPOUNDS
PERMANENT MAGNETS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
VANADIUM ADDITIONS
VANADIUM ALLOYS