Nanocrystallization studies of rapidly quenched Fe85.4-xCoxZr6.8-yNbyB6.8Cu1 (x = 0 or 42.7, y = 0 or 1) alloys

• Autorzy: Olszewski J. , Zbroszczyk J. , Ciurzyńska W. , Fukunaga H. , Wysłocki B. , Perduta K. , Łukiewska A. , Młyńczyk A. , Lelątko J. , Świerczek J.
• Konferencja: Proceedings of the All-Polish Seminar on Moessbauer Spectroscopy OSSM'2002, June 9-12, 2002, Goniądz, Poland
• Języki publikacji: EN

Abstrakty

EN

The microstructure of amorphous and nanocrystalline Fe42.7Co42.7Zr6.8-xNbxB6.8Cu1 (x = 0 or 1) alloys was investigated. We have stated that the nanocrystalline samples consist of the crystalline alfa-FeCo grains about 8 nm in diameter embedded in an amorphous matrix which is rich in cobalt. From Mössbauer spectroscopy studies we have found that the crystalline alfa-FeCo phase in the nanocrystalline samples obtained by the conventional annealing is atomically ordered. Moreover, the order degree depends on the annealing time. As for the samples partially crystallized during rapid quenching, the crystalline alfa-FeCo phase is atomically disordered.

Słowa kluczowe

EN

Mössbauer spectra; nanocrystalline Fe-Co alloys

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2003
• Tom: Vol. 48,suppl.1
• Strony: 49--52
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Olszewski J.

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

autor

Zbroszczyk J.

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

autor

Ciurzyńska W.

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

autor

Fukunaga H.

• Electrical Engineering Department, University of Nagasaki, Nagasaki, Japan

autor

Wysłocki B.

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

autor

Perduta K.

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

autor

Łukiewska A.

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

autor

Młyńczyk A.

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

autor

Lelątko J.

• Institute of Physics, University of Silesia, 12 Bankowa Str., 40-007 Katowice, Poland

autor

Świerczek J.

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

Bibliografia

• 1. Frąckowiak JE (1993) Investigation of B2 i DO3 type superstructure by means of Mössbauer effect method. University of Silesia, Katowice (in Polish)
• 2. Johnson F, Hsaio A, Ashe C et al. (2001) Magnetic nanocomposite materials for high temperature applications. In: Proc 1st IEEE Conf on Nanotechnology, October 28−30, 2001, Mavi, Hawaii, pp 1–6
• 3. Johnson F, Hughes P, Gallagher R et al. (2001) Structure and thermomagnetic properties of new FeCo-based nanocrystalline ferromagnets. IEEE Trans Magn 37:2261–2263
• 4. Kopcewicz M, Grabias A, Willard MA, Laughlin DE, McHenry ME (2001) Mössbauer measurements for a nanocrystalline Fe44Co44Zr7B4Cu1 alloy. IEEE Trans Magn 37:2226−2228
• 5. Willard MA, Gingras M, Lee MJ, Harris VG, Laughlin DE, McHenry ME (1999) Magnetic properties of HITPERM (Fe,Co)88Zr7B4Cu1 nanocrystalline magnets. Proc Mater Res Soc Symp 577:469–479
• 6. Willard MA, Huang M-Q, Laughlin DE et al. (1999) Magnetic properties of HITPERM (Fe, Co)88Zr7B4Cu1 magnets. J Appl Phys 85:4421–4423