Synthesis and characterization of Cu-SmCo5 functional composite alloys obtained by mechanical alloying and hot consolidation

M. López, J. Jiménez, K. Ramam, M. E. Gómez, R. V. Mangalaraja, M. De Vera

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Cu-8wt%SmCo5 alloys were processed through mechanical milling, to be used in dielectromagnetic components for functional applications. Copper and SmCo5 powder mixtures were alloyed under argon atmosphere for 1 to 20h in a planetary ball mill to disperse ultrafine SmCo5 particles in the copper matrix with the aim to modified magnetic properties and hardness of these materials. Resulting powders were characterized as a function of milling time by means of X-ray diffraction, SEM and magnetic properties. Magnetic properties of Cu-8wt%SmCo5 powders attained their optimum values after milling for 10h. The milled alloy powders were consolidated by hot uniaxial pressing technique (HUP) at 923K for 2 h. The hot consolidation process resulted in well dense MMCs materials (alloyed powders for 10h milled) with adequate properties of 8. 2 g/cm3 in density, compression strength higher than 900 MPa, 95HRb in hardness and electrical properties up to 43% IACS. The variation of electric and magnetic properties and its dependence on the structure-strengthened change with milling time for this alloy are discussed.

Idioma originalInglés
Título de la publicación alojadaProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2011
EditorialEuropean Powder Metallurgy Association (EPMA)
ISBN (versión impresa)9781899072200
EstadoPublicada - 2011
Publicado de forma externa
EventoEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2011 - Barcelona, Espana
Duración: 9 oct. 201112 oct. 2011

Serie de la publicación

NombreProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2011
Volumen2

Conferencia

ConferenciaEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2011
País/TerritorioEspana
CiudadBarcelona
Período9/10/1112/10/11

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