Please use this identifier to cite or link to this item: http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1041
Nanocrystalline Sm0.5Y0.5Co5 alloys with enhanced magnetic properties
JOSE LUIS HIDALGO GONZALEZ
JOSE TRINIDAD ELIZALDE GALINDO
JOSE ANDRES MATUTES AQUINO
Acceso Abierto
Sin Derechos Reservados
Permanent magnets
nanocrystalline materials
Nanocrystalline Sm0.5Y0.5Co5 powders (average crystal size d = 12 nm) were produced by arc melting pure metals followed by mechanical milling and annealing. Different milling/annealing times and annealing temperatures were used to optimize the hard magnetic properties of these nanopowders. A noticeably enhanced coercivity and remanence (coercivity of 2.1 MA/m, and σr/σmax = 0.7 respectively) were observed in samples milled for 240 minutes and then annealed for 1 minute at Temperatures ~1200K. Such remarkable magnetic properties stem from the high magnetocrystalline anisotropy field and the homogeneous grain size of the Sm0.5Y0.5Co5 nanocrystals.
2009
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