Nanocrystallization and magnetic properties of Fe85.4Zr6.8-xMxB6.8Cu1 (x=0 or 1; M = Nb, Nd or Mo) alloys

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:272

Article; Proceedings Paper

Olszewski, J ; Fukunaga, H ; Zbroszczyk, J ; Ciurzynska, WH ; Perduta, K ; Hasiak, M ; Bragiel, P ; Piasecki, M ; Lelatko, J

关键词: amorphous and nanocrystalline materials;    Mossbauer effect;    magnetic susceptibility;    disaccommodation;   

DOI  :  10.1016/j.jmmm.2003.12.552

来源: Elsevier

【 摘 要 】

After annealing alloys below crystallization temperatures, the decrease of the average hyperfine field due to the invar effect is observed. At early stages of crystallization, the iron content in the amorphous matrix is the same as in the as-quenched state. The amorphous samples show broad disaccommodation spectra with activation energies from 0.6 to 0.9eV. The highest initial magnetic susceptibility was obtained for the nanocrystalline Fe85.4Zr5.8Nb1B6.8Cu1 alloy. However, the best thermal stability of the susceptibility is observed for the Fe85.4Zr6.8B6.8Cu1 alloy. (C) 2003 Elsevier B.V. All rights reserved.

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