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Abstracts
Nanocrystalline (Fe_{1-x}Ni_{x})_{81}Nb_{7}B_{12} (x=0, 0.25, 0.5, 0.75) and Vitroperm alloys were studied by Mössbauer spectroscopy after neutron irradiation at fluences of 10^{16} n/cm^{2} and 10^{17} n/cm^{2}. From structure analyses, we have identified ferromagnetic bcc-FeNi in nanocrystalline state and partly paramagnetic (Fe-Ni)_{23}B_{6} phase. Neutron irradiation had an influence on the magnetic microstructure, which is manifested in the change of the Mössbauer parameters, such as the direction of net magnetic moment, the intensity of internal magnetic field and the volumetric fraction. The results indicate that the changes of the microscopic magnetic parameters, induced by neutron irradiation, depend on iron and nickel content. Significant radiation damage started at neutron fluence of 10^{17} n/cm^{2}.
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84-85
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Dates
published
2014-07
Contributors
author
- Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia
author
- Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia
References
- [1] F.P. Shimansky, R. Gerling, R. Wagner, Mat. Sci. Eng. 97, 173 (1997)
- [2] J. Degmová, Ph.D. Thesis, Slovak University of Technology, Bratislava 2001
- [3] T. Zak, Y. Jiraskova, Surf. Interface Anal. 38, 710 (2006), doi: 10.1002/sia.2285
- [4] J. Degmová, J. Sitek, J.M. Greneche, in Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors, Eds. B. Idzikowski, P. Svec, M. Miglierini, Kluwer Academic Publishers, Dodrecht 2005
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv126n1038kz