Influence of hot isostatic pressing on the magnetic properties of melt-spun Sm/sub 2/Fe/sub 17/N/sub x/ magnets

After homogenization, and subsequent nitrogenation, melt-spun Sm/sub 2/Fe/sub 17/N/sub x/ shows high values of coercivity up to 2 T. The coercivity is further increased to 2.9 T by applying the Zn-bonding technique. Densities up to 6.7 g/cm/sup 3/ can be achieved by hot isostatic pressing (HIP). Aft...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1993-11, Vol.29 (6), p.2821-2823
Main Authors: Handstein, A., Wendhausen, P.A.P., Muller, K.-H., Gebel, B., Pitschke, W., Eckert, D., Mayerhofer, O., Kirchmayr, H.R.
Format: Article
Language:English
Subjects:
Bonding
Coercive force
Hip
Iron
Magnetic materials
Magnetic properties
Magnets
Pressing
Samarium
Zinc
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Summary:After homogenization, and subsequent nitrogenation, melt-spun Sm/sub 2/Fe/sub 17/N/sub x/ shows high values of coercivity up to 2 T. The coercivity is further increased to 2.9 T by applying the Zn-bonding technique. Densities up to 6.7 g/cm/sup 3/ can be achieved by hot isostatic pressing (HIP). After HIP, however, the Zn-bonded samples show a deterioration in the shape of the demagnetization curves, which is due to the formation of alpha -Fe, as indicated by X-ray diffractometry.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.281064