Počet záznamů: 1

Changes in the hyperfine interactions in the Fe80Nb3Cu1B16 metallic glass under tensile loading

  1. 1.
    0354343 - UFM-A 2011 RIV NL eng J - Článek v odborném periodiku
    Jirásková, Yvonna - Zábranský, Karel - Vůjtek, M. - Životský, O.
    Changes in the hyperfine interactions in the Fe80Nb3Cu1B16 metallic glass under tensile loading.
    Journal of Magnetism and Magnetic Materials. Roč. 322, č. 14 (2010), s. 1939-1946 ISSN 0304-8853
    Grant CEP: GA ČR GD106/05/H008; GA ČR GA202/05/2111
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: Amorphous alloys * Hyperfine interactions * Magnetic property * Tensile loading
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 1.689, rok: 2010

    The influence of tensile stress on the changes in hyperfine parameters obtained by Mössbauer spectroscopy of the ferromagnetic amorphous NANOPERM-type Fe80Nb3Cu1B16 alloy has been investigated. The bulk changes are obtained by Mössbauer spectroscopy in a transmission geometry using γ-rays; the surface properties are studied in a scattering geometry using conversion electrons. The Mössbauer spectra are analyzed by two distributions of hyperfine inductions which result in high-field and low-field components corresponding with a model of clusters formed by predominantly iron atoms and intermediate phase containing mainly the Nb, Cu and B atoms. The obtained results are completed by the bulk and surface magnetic measurements, with observations of the surface morphology by AFM and microstructure by SEM. The investigations yield approximately linear increase of hyperfine parameters and slight deterioration of the bulk as well as surface magnetic characteristics with tensile loading.
    Trvalý link: http://hdl.handle.net/11104/0193366