Revista de Metalurgia, Vol 54, No 2 (2018)

Imanes Permanentes y su Producción por Pulvimetalurgia


https://doi.org/10.3989/revmetalm.121

Enrique Herraiz Lalana
School of Metallurgy and Materials, University of Birmingham - Departamento de Ciencia e Ingeniería de Materiales, Universidad Carlos III de Madrid, España
orcid http://orcid.org/0000-0001-7997-6281

Resumen


En este estudio se ha revisado la relación histórica entre la pulvimetalurgia y los imanes permanentes. La pulvimetalurgia es una técnica de fabricación basada en la compactación de polvos que son sinterizados para crear un producto sólido. Esta técnica fue utilizada en la producción de imanes permanentes por primera vez en el siglo XVIII y, hoy en día, la mayoría de materiales magnéticos permanentes se fabrican de esta forma. Las propiedades magnéticas dependen de la microestructura del producto final, de la alineación de los dominios magnéticos y de la presencia de porosidad; y la pulvimetalurgia permite un control adecuado de estos factores.

Palabras clave


Imanes permanentes; Materiales magnéticos; Pulvimetalurgia; Sinterización

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Referencias


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