The influence of Al doping on microstructure and hyperfine interactions in FINEMET

• Autorzy: Brzózka K. , Szumiata T. , Gawroński M. , Górka B. , Zorkovská A. , Sovák P.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'04
• Języki publikacji: EN

Abstrakty

EN

Structure and hyperfine interactions of amorphous and nanocrystalline FINEMET were investigated by means of Mössbauer spectrometry. It was found that substitution of x iron atoms with aluminum ones causes changes in the properties of both amorphous and nanocrystalline alloys as well as in the structure of individual phases. The reduction of hyperfine magnetic field caused by atom substitution is a non-linear function of x, unlike the linear dependence expected because of dilution. Temperature studies reveal a double magnetic phase transition at 250°C and 330°C as well as point to the variety of phases in the examined material.

Słowa kluczowe

EN

Mössbauer spectroscopy; FINEMET; nanocrystalline alloys; Al-dopped FINEMET

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2004
• Tom: Vol. 49,suppl.3
• Strony: 59--62
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Brzózka K.

• Department of Physics, Technical University of Radom, 29 Malczewskiego Str., 26-600 Radom, Poland, Tel.: [phone], Fax: [phone]

autor

Szumiata T.

• Department of Physics, Technical University of Radom, 29 Malczewskiego Str., 26-600 Radom, Poland, Tel.: [phone], Fax: [phone]

autor

Gawroński M.

• Department of Physics, Technical University of Radom, 29 Malczewskiego Str., 26-600 Radom, Poland, Tel.: [phone], Fax: [phone]

autor

Górka B.

• Department of Physics, Technical University of Radom, 29 Malczewskiego Str., 26-600 Radom, Poland, Tel.: [phone], Fax: [phone]

autor

Zorkovská A.

• Department of Experimental Physics, Faculty of Sciences, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

autor

Sovák P.

• Department of Experimental Physics, Faculty of Sciences, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

Bibliografia

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• 2. Grenèche JM, Miglierini M (1999) Mössbauer spectrometry applied to iron-based nanocrystalline alloys I. In: Miglierini M, Petridis D (eds) Mössbauer spectroscopy in materials science. Kluwer Academic Publishers, The Netherlands, pp 243−256
• 3. Häggström L, Gránäs L, Wäppling R, Devanarayanan S (1973) Mössbauer study of ordering in FeSi alloys. Phys Scripta 7:125−131
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• 5. Miglierini M, Grenèche JM (1999) Mössbauer spectrometry applied to iron-based nanocrystalline alloys II. In: Miglierini M, Petridis D (eds) Mössbauer spectroscopy in materials science. Kluwer Academic Publishers, The Netherlands, pp 257−272
• 6. Pavlik G, Matta P, Sovák P, Zorkovská A, Konè M (2000) Influence of annealing treatment on the structure and magnetic properties of Fe-Al-Cu-Nb-Si-B alloys. Acta Phys Pol A 97:741−744
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• 12. Zorkovská A, Kováè J, Sovák P, Petroviè P, Konè M (2000) Structure and magnetic behaviour of the Fe-Cu-Nb-Si-B-Al. alloys. J Magn Magn Mater 215/216:492−496
• 13. Zorkovská A, Petroviè P, Sovák P, Kováè J (2002) On the role of aluminum in FINEMET. Czech J Phys 52:163−166