Mössbauer studies of melt-spun Pr2Fe14B ribbons

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Issue Date
2001-08-01
Authors
Hamdeh, Hussein H.
Zhang, X.
Ho, J. C.
Chang, W. C.
Chang, H. W.
Liou, Y. S.
Advisor
Citation

Hamdeh, H. H.; Zhang, X.; Ho, J. C.; Chang, W. C.; Chang, H. W.; Liou, Y. S.; , "Mössbauer studies of melt-spun Pr2Fe14B ribbons," Journal of Applied Physics , vol.90, no.4, pp.2033-2035, Aug 2001 doi: 10.1063/1.1385353

Abstract

Melt-spun ribbons of tetragonal Pr2Fe14B exhibit favorable hard magnet characteristics. Technically relevant materials based on this compound, however, generally contain a certain amount of soft magnetic a-Fe or Fe3-xBx for remanence enhancement through exchange coupling. The nominal off-stoichiometric compositions lead to metallurgical complications, which are not easily resolvable by standard phase identification techniques such as x-ray diffraction and thermal magnetic analysis. As a viable alternative, 57Fe-Mössbauer spectroscopy can be used to delineate individual Fe sites. To provide a basis for such an approach, this report gives Mössbauer parameters including hyperfine magnetic field, isomer shift, and quadrupole splitting as obtained from a single-phase melt-spun Pr2Fe14B ribbon. © 2001 American Institute of Physics.

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