Microstructure and magnetic relaxation in amorphous and nanocrystalline Fe42.7Co42.7Zr6.8−Nb B6.8Cu1 (x=0 or 1) alloys

Autor: Jacek Olszewski, Hirotoshi Fukunaga, J. Zbroszczyk, W.H. Ciurzyńska, J. Lelątko, Mariusz Hasiak, Michal Piasecki, A. Młyńczyk, P. Brągiel
Rok vydání: 2004
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. :1425-1426
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2003.12.554
Popis: We stated that crystalline grains in the nanocrystalline alloys obtained by a proper annealing consist of the ordered α-FeCo phase. However, in the partially crystallized alloys during a rapid solidification α-FeCo phase is completely disordered. In both, the amorphous and nanocrystalline samples broad disaccommodation spectra are observed. The activation energies of relaxation processes range from 1.00 to 1.34 eV and from 1.47 to 1.82 eV for the amorphous and nanocrystalline samples, respectively.
Databáze: OpenAIRE