Magnetic properties of substituted R/sub 2/(Fe,Al, Co)/sub 14/B compounds
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6544759
The effects of the substitution of Fe by Al in R/sub 2/ (Fe/sub 1-x/Al/sub x/)/sub 14/B compounds (R = Y, rare earths) on their magnetic properties have been investigated. The compounds crystallize in the tetragonal structure, P4/sub 2//mnm, provided x < 0.1. The saturation magnetization and Curie temperatures decrease slightly with increasing Al content, x. However, the anisotropy constant, K/sub iota/, and the anisotropy field H/sub A/, exhibit a maximum at x = 0.06. The substitution of Fe with Al atoms is also effective in enhancing the coercivity of magnets based on the Nd-Fe-B compounds. As the Y atom carries no magnetic moment, the increased anisotropy field must result from preferential ordering of the non-magnetic Al atoms among the six non-equivalent crystallographic sites of the iron sublattice.
- Research Organization:
- Univ. of Missouri - Rolla, MO 65401
- OSTI ID:
- 6544759
- Report Number(s):
- CONF-860436-
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-22:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ANISOTROPY
BORON ALLOYS
COBALT ALLOYS
COERCIVE FORCE
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CURIE POINT
IRON ALLOYS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETS
NEODYMIUM ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
STRUCTURAL CHEMICAL ANALYSIS
TETRAGONAL LATTICES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
YTTRIUM ALLOYS
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ANISOTROPY
BORON ALLOYS
COBALT ALLOYS
COERCIVE FORCE
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CURIE POINT
IRON ALLOYS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETS
NEODYMIUM ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
STRUCTURAL CHEMICAL ANALYSIS
TETRAGONAL LATTICES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
YTTRIUM ALLOYS