Ga added Nd-Fe-B sintered and die-upset magnets

Conference · Fri Sep 01 04:00:00 EDT 1989 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA)

OSTI ID:5304673

Tokunaga, M; Nozawa, Y; Iwasaki, K; Endoh, M; Tanigawa, S; Harada, H ^[1]

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1. Magnetic and Electronic Materials Research Lab., Hitachi Metals Ltd., 5200 Mikajiri, Kumagaya, Saitama T360 (JP)

The effect of Ga addition on coercivity are reviewed for Nd-Fe-B sintered and die-upset magnets in order to improve thermal stability. The Ga addition increases coercivity remarkably for Nd(Fe/sub 0.72/Co/sub 0.2/B/sub 0.08/)5.6 sintered magnets. The Ga addition does not bring coercivity enhancement for the sintered magnets with the lower Co substitution. The Ga addition increases coercivity for Nd-Fe-B dieupset magnets. No decrease in coercivity by Co substitution up to 20 at.% is observed for Nd/sub 14/Fe/sub 79.25/B/sub 6/Ga/sub 0.75/ die-upset magnets. This is an advantage of the die-upset magnets compared with sintered magnets.

• OSTI ID: 5304673
• Report Number(s): CONF-890309--
• Conference Information: Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA) Journal Volume: 25:5
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
CHEMICAL COMPOSITION
COERCIVE FORCE
FABRICATION
GALLIUM ADDITIONS
GALLIUM ALLOYS
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
NEODYMIUM ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SINTERING