Effects of Co, Ni, and Cr addition on microstructure and magnetic properties of amorphous and nanocrystalline Fe86−xMxZr7Nb2Cu1B4 (M = Co, Ni, CoCr, and Cr, x = 0 or 6) alloys

• Autorzy: Łukiewska A. , Świerczek J. , Hasiak M. , Olszewski J. , Zbroszczyk J. , Gębara P. , Ciurzyńska W.

Identyfikatory

DOI

10.1515/nuka-2015-0021

• Konferencja: All-Polish Seminar on Mössbauer Spectroscopy OSSM 2014 (10th ; 15-18.06.2014 ; Wrocław, Poland)
• Języki publikacji: EN

Abstrakty

EN

Mössbauer spectra and thermomagnetic curves for the Fe86-xMxZr7Nb2Cu1B4 (M = Co, Ni, CoCr, and Cr, x = 0 or 6) alloys in the as-quenched state and after the accumulative annealing in the temperature range 600–800 K for 10 min are investigated. The parent Fe86Zr7Nb2Cu1B4 amorphous alloy is paramagnetic at room temperature, and substitution of 6 at.% of Fe by Co, Ni, and CoCr changes the magnetic structure – the alloys become ferromagnetic, whereas replacing 6 at.% of Fe with Cr preserves the paramagnetic state. After the heat treatment at 600 K, the decrease of the average hyperfi ne fi eld induction, as compared to the as-quenched state, is observed due to the invar effect. After this annealing, the Curie temperature for all investigated alloys decreases. The accumulative annealing up to 800 K leads to the partial crystallization; α-Fe or α-FeCo grains with diameters in the range of 12–30 nm in the residual amorphous matrix appear.

Słowa kluczowe

EN

amorphous materials; nanocrystalline materials; Mössbauer spectroscopy; invar effect; Curie temperature

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 1
• Strony: 103--108
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Łukiewska A.

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

autor

Świerczek J.

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

autor

Hasiak M.

• Institute of Materials Science & Applied Mechanics, Wrocław University of Technology, 25 Smoluchowskiego Str., 50-370 Wrocław, Poland

autor

Olszewski J.

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

autor

Zbroszczyk J.

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

autor

Gębara P.

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

autor

Ciurzyńska W.

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

Bibliografia

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