High temperature magnetic properties of 2:17 Sm–Co magnets

This work is part of an European research programme (HITEMAG) and we report on the high temperature magnetic properties of Sm(Co balFe v Cu y Zr x ) z sintered magnets. The effects of copper and zirconium in dependence on the z-value have been studied. At room temperature, both, a higher Zr and/or h...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2002-04, Vol.242, p.1347-1349
Main Authors: Schobinger, D., Gutfleisch, O., Hinz, D., Müller, K.-H., Schultz, L., Martinek, G.
Format: Article
Language:English
Subjects:
Coercivity
Rare earth permanent magnets
Sintered magnets
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Summary:This work is part of an European research programme (HITEMAG) and we report on the high temperature magnetic properties of Sm(Co balFe v Cu y Zr x ) z sintered magnets. The effects of copper and zirconium in dependence on the z-value have been studied. At room temperature, both, a higher Zr and/or higher Cu content, increases the useful z-range with respect to coercivity. An increase in Sm content leads to the best coercivities at high temperatures (450–550°C: μ 0 j H c=0.8–0.45 T). Higher zirconium content shifts the maximum coercivity to lower samarium levels.
ISSN:0304-8853
DOI:10.1016/S0304-8853(01)01278-1