Crystallization of Fe-B amorphous alloys: A NMR and x-ray study

Y. D. Zhang, J. I. Budnick, J. C. Ford, W. A. Hines, F. H. Sanchez, R. Hasegawa

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Abstract

Based on a knowledge of the NMR spectra for FeB, Fe2B, orthorhombic Fe3B (o-Fe3B), and body-centered-tetragonal Fe3B (bct-Fe3B), the phases produced during the annealing of Fe-B amorphous alloys can be identified with greater sensitivity by NMR techniques than by x-ray diffraction. In the present work, a combination of x-ray diffraction experiments and spin-echo NMR measurements of the hyperfine field distributions for the 10B, 1 1B, and 57 Fe nuclei has been performed on both as-quenched and annealed Fe100 -xBx (14≤x≤25) amorphous alloys. In general terms, it was found that annealing at temperatures near 400°C resulted in crystallization products which included bct-Fe3B, while annealing at approximately 800°C leads to the formation of o-Fe 3B. The behavior of the B hyperfine field indicates that, for the Fe100-xBx amorphous alloys, an o-Fe3B-like local order is favored in the low B concentration regime, and a bct-Fe3B-like local order is favored in the high B concentration regime.

Original languageEnglish (US)
Pages (from-to)3231-3233
Number of pages3
JournalJournal of Applied Physics
Volume61
Issue number8
DOIs
StatePublished - Dec 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Zhang, Y. D., Budnick, J. I., Ford, J. C., Hines, W. A., Sanchez, F. H., & Hasegawa, R. (1987). Crystallization of Fe-B amorphous alloys: A NMR and x-ray study. Journal of Applied Physics, 61(8), 3231-3233. https://doi.org/10.1063/1.338912