Mössbauer Spectroscopy Characterization of Soft Magnetic Nanocrystalline Alloys

Kopcewicz, M.

doi:10.1007/1-4020-7984-2_14

Cited by 2 publications

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References 137 publications

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“…Table 1. The hyperfine magnetic fields (Bhf) we have obtained for these four discrete sextets are very close to those reported by others [16,18] . "1" denotes the case of 8 Fe atoms as the nearest neighbor of a resonant 57 Fe atom, which can be simply marked as "8Fe0Si".…”

Section: Resultssupporting

confidence: 91%

“…The hyperfine magnetic fields (B hf ) we have obtained for these four discrete sextets are very close to those reported by others. [16,18] "1" denotes the case of eight Fe atoms as the nearest neighbors of a resonant 57 Fe atom, which can be simply marked as "8Fe0Si". In the same way, "2" denotes the case of "6Fe2Si", "3" denotes the case of "5Fe3Si", and "4" denotes the case of "4Fe4Si".…”

Section: Resultsmentioning

confidence: 99%

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Electromagnetic wave absorbing properties and hyperfine interactions of Fe—Cu—Nb—Si—B nanocomposites

et al. 2014

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The Fe-Cu-Nb-Si-B alloy nanocomposite containing two ferromagnetic phases (amorphous phase and nanophase phase) is obtained by properly annealing the as-prepared alloys. High resolution transmission electron microscopy (HRTEM) images show the coexistence of these two phases. It is found that Fe-Si nanograins are surrounded by the retained amorphous ferromagnetic phase. Mossbauer spectroscopy measurements show that the nanophase is the D0 3 -type Fe-Si phase, which is employed to find the atomic fractions of resonant 57Fe atoms in these two phases. The microwave permittivity and permeability spectra of Fe-Cu-Nb-Si-B nanocomposite are measured in the frequency range of 0.5 GHz-10 GHz. Large relative microwave permeability values are obtained. The results show that the absorber containing the nanocomposite flakes with a volume fraction of 28.59% exhibits good microwave absorption properties. The reflection loss of the absorber is less than −10 dB in a frequency band of 1.93 GHz-3.20 GHz. KeywordsMossbauer spectroscopy, magnetic permeability, nanocrystalline alloys Disciplines Electrical and Computer Engineering | Electromagnetics and Photonics

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%