Properties of rapidly solidified Nd-Fe-Ga-Co-B alloys
Conference
·
· IEEE (Institute of Electrical and Electronics Engineers) Transactions on Magnetics; (USA)
OSTI ID:5306214
- Delco Remy Div.-MAGNEQUENCH General Motors Corp., Anderson, IN (US)
The authors discuss investigations carried out to study the properties of rapidly solidified Nd-Fe-B alloys containing gallium and cobalt. The gallium content giving maximum room temperature Br and BHmax was found to be 0.6 wt%. Further investigations have been carried out with 0.6 wt.% gallium and varying cobalt contents. Transmission electron micrographs of the ribbons indicate a three phase structure as compared to the two phase structure in Nd-Fe-B alloys. The three phases include: Nd/sub 2/(Fe,Co)/sub 14/B, Nd(Fe,Co)/sub 4/B and a neodymium-iron-gallium grain boundary phase. The latter phase is depleted in iron which is believed to increase the coercive force by increasing its effectiveness as a pinning site. Anisotropic magnets are prepared from the above alloys by hot deformation techniques.
- OSTI ID:
- 5306214
- 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
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Technical Report
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Journal Article
·
Mon Apr 18 00:00:00 EDT 1988
· Appl. Phys. Lett.; (United States)
·
OSTI ID:5452176
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Thesis/Dissertation
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Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:5529226
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
COBALT ADDITIONS
COBALT ALLOYS
COERCIVE FORCE
CRYSTAL STRUCTURE
DISLOCATION PINNING
ELECTRON MICROSCOPY
FABRICATION
GALLIUM ADDITIONS
GALLIUM ALLOYS
GRAIN BOUNDARIES
HOT PRESSING
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
MATERIALS TESTING
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
NEODYMIUM ALLOYS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRESSING
RARE EARTH ALLOYS
SOLIDIFICATION
TESTING
TRANSMISSION ELECTRON MICROSCOPY
360101 -- Metals & Alloys-- Preparation & Fabrication
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
ANISOTROPY
BORON ALLOYS
COBALT ADDITIONS
COBALT ALLOYS
COERCIVE FORCE
CRYSTAL STRUCTURE
DISLOCATION PINNING
ELECTRON MICROSCOPY
FABRICATION
GALLIUM ADDITIONS
GALLIUM ALLOYS
GRAIN BOUNDARIES
HOT PRESSING
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
MATERIALS TESTING
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
NEODYMIUM ALLOYS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRESSING
RARE EARTH ALLOYS
SOLIDIFICATION
TESTING
TRANSMISSION ELECTRON MICROSCOPY