Crystallization behavior and Mossbauer studies of the R-6-(Fe, Nb)(88)-B-6alloys with R = Nd, Pr, Dy

Authors
Papaefthymiou, V Moukarika, A Withanawasam, L Hadjipanayis, GC
Citation
V. Papaefthymiou et al., Crystallization behavior and Mossbauer studies of the R-6-(Fe, Nb)(88)-B-6alloys with R = Nd, Pr, Dy, IEEE MAGNET, 37(4), 2001, pp. 2618-2620
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2618 - 2620
Database
ISI
SICI code
0018-9464(200107)37:4<2618:CBAMSO>2.0.ZU;2-F
Abstract
We have prepared a new series of R-Fe-B alloys with R = Nd, Pr, and Dy havi ng the Y3Fe62B14 structure using the melt-spinning technique. This metastab le phase when annealed at higher temperatures transforms to the R2Fe14B1 alpha -Fe phase. We have studied the crystallization behavior of these allo ys. Fe-57 Mossbauer studies have shown that the as-spun samples were amorph ous and the ribbons annealed at 600-620 degreesC contain the metastable Y3F e62B14 type structure with a-Fe. The analysis of the Mossbauer spectra of t he R3Fe62B14 phases has yielded average hyperfine fields of 229 kG at 295 K and 315 kG at 17 K.