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Type: Artigo de periódico
Title: Cu induced coercivity enhancement in the low viscosity GdCo5-xCux system
Author: de Oliveira, LAS
Sinnecker, JP
Grossinger, R
Penton-Madrigal, A
Estevez-Rams, E
Abstract: We investigate the influence of Cu substitution, on the coercivity and magnetic viscosity, in the ternary system GdCo5-xCux (x = 0, 0.5, 1, 1.5, 2 and 2.5) with different field sweep rates. All samples have been studied in the as cast state and crystallize in a single phase CaCu5 structure. With Cu addition, the coercivity was 10 times enhanced for x = 1.5. The behavior of the coercivity H-c against field sweep rate, dH/dt, shows that the GdCo5-xCux system exhibits only a small magnetic viscosity effect, a desirable property for magnetic dynamic applications under high magnetic field. (c) 2011 Elsevier B.V. All rights reserved.
Subject: Permanent magnets
High coercivity materials
Rare earth metals and alloys
Intermetallic compounds
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2011.02.033
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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