Current status of rapidly solidified Nd-Fe-B permanent magnets

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

OSTI ID:5215601

Croat, J J ^[1]

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1. General Motors Corp., Anderson, IN (USA). Delco-Remy Div.

Nd-Fe-B alloys can be rapidly solidified to produce a highly stable, magnetically isotropic powder which can be processed directly into either bonded magnets or, by hot pressing, into anisotropic magnets or, by hot pressing, into anisotropic magnets with energy levels exceeding 40 MGO/sub e/. Current processing is briefly reviewed, as are some of the unique advantages that these materials offer as a result of their extremely fine-grained microstructure. Development issues surrounding these materials are discussed, including activities aimed at improving temperature performance, magnetic uniformity and manufacturability of hot deformed materials and the status and outlook of anisotropic powders from ground hot-deformed materials.

• OSTI ID: 5215601
• 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
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANISOTROPY
BORON ALLOYS
CRYSTAL STRUCTURE
FABRICATION
HOT PRESSING
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
MATERIALS WORKING
MICROSTRUCTURE
NEODYMIUM ALLOYS
PERMANENT MAGNETS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
PRESSING
RARE EARTH ALLOYS
SOLIDIFICATION