Please use this identifier to cite or link to this item: http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1068
Nanocrystalline PrCo5 alloy obtained by mechanical milling
FRANCISCO JAVIER RIVERA GOMEZ
JOSE TRINIDAD ELIZALDE GALINDO
JOSE ANDRES MATUTES AQUINO
Acceso Abierto
Sin Derechos Reservados
Permanent magnets
Rare earth alloys and compounds
Nanostructured PrCo5 powderswere obtained by mechanical milling, annealing in high vacuum in sealed ampoules and subsequent quenching in water. The highest intrinsic coercivity value (iHC = 1.385MA/m) and magnetization ratio (σr/σmax = 0.66) were determined in powders milled for 240 min and annealed at 1073K for 1 min. The enhanced remanence (σr/σmax > 0.5) suggests strong exchange interactions between the adjacent crystallites. This is in good agreement with the small average crystallite size, <D> = 15 nm. The high magnetic properties observed in these nanostructured PrCo5 intermetallic alloys have their origin in its relatively high uniaxial magnetocrystalline anisotropy field, and in the homogeneous nanostructure developed by mechanical milling process and subsequent annealing.
2008
Artículo
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