Imanes Permanentes y su Producción por Pulvimetalurgia

Enrique Herraiz Lalana

doi:10.3989/revmetalm.121

Autores/as

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

DOI:

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

Palabras clave:

Imanes permanentes, Materiales magnéticos, Pulvimetalurgia, Sinterización

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.

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