Título

Nanocrystalline PrCo5 alloy obtained by mechanical milling

Autor

FRANCISCO JAVIER RIVERA GOMEZ

JOSE TRINIDAD ELIZALDE GALINDO

JOSE ANDRES MATUTES AQUINO

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/about/cc0/

Materias

Permanent magnets - (NANOSTRUCTURED MATERIALS) Rare earth alloys and compounds - (MICROSTRUCTURE) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) FÍSICA - (CTI) OTRAS ESPECIALIDADES FÍSICAS - (CTI) OTRAS - (CTI)

Resumen o descripción

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.

Fecha de publicación

2008

Tipo de publicación

Artículo

Versión de la publicación

Versión enviada

Recurso de información

http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1068

Formato

application/pdf

Idioma

Inglés

Repositorio Orígen

Fuente de Objetos Científicos Open Access

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