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<p>Hyperfine interactions within Fe<sub>81</sub>B<sub>12</sub>Sn<sub>7</sub> and (Fe<sub>0.75</sub>Co<sub>0.25</sub>)<sub>81</sub>B<sub>12</sub>Sn<sub>7</sub> metallic glasses were explored through Mössbauer spectrometry using both <sup>57</sup>Fe and <sup>119</sup>Sn resonant nuclei. As-quenched specimens were fabricated via planar flow casting, followed by annealing at 673&#xa0;K for 30&#xa0;min, coinciding with the first stage of crystallization. After annealing, presence of crystalline components was revealed in the <sup>57</sup>Fe Mössbauer spectra. They were identified in the respective samples as bcc-Fe and bcc-FeCo phases with small inclusions of Sn. However, no traces of crystalline components were directly seen in the <sup>119</sup>Sn spectra. Partial replacing of Fe with Co resulted in an increase of the hyperfine magnetic fields at both iron and tin probe atoms.</p>

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Mössbauer spectrometry used in the study of iron-based tin-containing metallic glasses

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  • 发表日期：

    2025年3月19日

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  • Daniel G. Grey,
  • Marcel B. Miglierini

摘要

Hyperfine interactions within Fe81B12Sn7 and (Fe0.75Co0.25)81B12Sn7 metallic glasses were explored through Mössbauer spectrometry using both 57Fe and 119Sn resonant nuclei. As-quenched specimens were fabricated via planar flow casting, followed by annealing at 673 K for 30 min, coinciding with the first stage of crystallization. After annealing, presence of crystalline components was revealed in the 57Fe Mössbauer spectra. They were identified in the respective samples as bcc-Fe and bcc-FeCo phases with small inclusions of Sn. However, no traces of crystalline components were directly seen in the 119Sn spectra. Partial replacing of Fe with Co resulted in an increase of the hyperfine magnetic fields at both iron and tin probe atoms.