Ordering of alfa-FeCo phase in the nanocrystalline Fe83-xCoxNb3B13Cu1 (x = 6, 25 or 41.5) alloy

• Autorzy: Zbroszczyk J. , Młyńczyk A. , Olszewski J. , Ciurzyńska W. , Wysłocki B. , Perduta K. , Lelątko J. , Nabiałek M.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'06, June 18-21, 2006, Koszęcin, Poland
• Języki publikacji: EN

Abstrakty

EN

The microstructure and ordering of alfa-FeCo phase of the nanocrystalline Fe83 xCoxNb3B13Cu1 (x = 6, 25 or 41.5) alloys were investigated. We have stated that á-FeCo phase is atomically ordered in the Fe83 xCoxNb3B13Cu1 (x = 25 or 41.5) samples crystallized by the heat treatment in a furnace. However, after flash annealing (by current or laser) that phase is disordered. Moreover, we have found that Co concentration in the crystalline alfa-FeCo phase strongly depends on Co content in the as-quenched ribbons. The annealing conditions influence also the grain diameter of the crystalline phase. In the nanocrystalline alloys obtained by a flash annealing of the amorphous ribbons finer grains are present.

Słowa kluczowe

EN

nanocrystalline alloys; microstructure; ordering; Mössbauer spectroscopy

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2007
• Tom: Vol. 52, supl. 1
• Strony: 29--32
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Zbroszczyk J.

autor

Młyńczyk A.

autor

Olszewski J.

autor

Ciurzyńska W.

autor

Wysłocki B.

autor

Perduta K.

autor

Lelątko J.

autor

Nabiałek M.

• Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Str., 42-200 Częstochowa, Poland, Tel./Fax: [phone],

Bibliografia

• 1.Berkovitz A, Kneller E (1989) Magnetism and metallurgy.Academic Press, New York-London
• 2.Brand RA (1987) Improving the validity of hyperfine field distributions from magnetic alloys. Nucl Instrum Methods Phys Res B 28:398−416
• 3. Frąckowiak JE (1985) Determination of the long-range order parameter in the transition metal alloys using Mössbauer spectroscopy. Phys Status Solidi A 87;1:109−119
• 4. Hasiak M, Zbroszczyk J, Ciurzyńska W et al. (2004) Crystallization and magnetic behaviour of (Fe1−xCox)85.4Zr5.8Nb1B6.8Cu1 (x = 0, 0.1, 0.3, 0.5) alloys. Phys Status Solidi C 1;12:3463−3467
• 5. Johnson F, Hughes P, Gallagher R et al. (2001) Structure and thermomagnetic properties of new FeCo-based nanocrystalline ferromagnets. IEEE Trans Mag 37;4:2261−2263
• 6. McHenry ME (1999) Amorphous and nanocrystalline materials for applications as soft magnets. Prog Mater Sci 44:291−433
• 7. Olszewski J, Zbroszczyk J, Fukunaga H et al. (2002) Transmision from amorphous to nanocrystalline state in Fe85.4Zr6.8−xNbxB6.8Cu1 (x = 0, 1) alloys. J Magn Magn Mater 241;2/3:381−389
• 8. Willard MA, Laughlin DE, McHenry ME et al. (1998) Structure and magnetic properties of (Fe0.5Co0.5)88Zr7B4Cu1 nanocrystalline alloys. J Appl Phys 84;12:6773−6777