Autor: Kaczkowski, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of heat-treatment and magnetic field on the ultrasound velocities in the Fe72.5Cu1Nb4Sil3.5B9 amorphous ribbons
Autorzy:: Kaczkowski, Z.
Milewska, E.
Lovas, A.
Powiązania:: https://bibliotekanauki.pl/articles/331571.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: Ultrasound velocities as the functions of the bias magnetic field and annealing temperature were investigated in the Fe72.5Cu1Nb4Sil3.5B9 alloy. The samples were annealed in vacuum for 1 h in the temperature range from 200 to 700oC The maximum changes were observed after annealing at the temperature of 450oC when the magnetomechanical coupling coefficient reached maximum value (k = 0.62). The ultrasound velocities were ehanging from 3.5 to 5.3 km/s depending on the magnetic bias field and the thermal-treatment history.
Źródło:: Hydroacoustics; 2000, 3; 231-236
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Piezomagnetic Dependences on Magnetic Bias Field of Annealed at 450°C Fe-Cu-Nb-Si-B Alloy
Autorzy:: Kaczkowski, Z.
Milewska, E.
Duhaj, P.
Vlasák, G.
Powiązania:: https://bibliotekanauki.pl/articles/1956531.pdf
Data publikacji:: 1997-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.60.Nt
75.80.+q
75.60.Ch
Opis:: Magnetic field dependences of the piezomagnetic dynamics, magnetomechanical coupling and elasticity moduli in the Fe$\text{}_{73.5}$Cu$\text{}_{1}$Nb$\text{}_{3}$ Si$\text{}_{13.5}$B$\text{}_{9}$ alloy in an as-quenched state and annealed in vacuum for 1 h at 450°C were investigated. The maximum value of the magnetomechanical coupling coefficient was equal to 0.15 for the as-quenched state and 0.7 after annealing at 450°C. The changes of the elasticity moduli (ΔE effect) from about 60 to 180 GPa were observed after annealing at this temperature. These changes are connected with magnetostriction (equal to 25.8×10$\text{}^{-6}$ at saturation), internal stresses, defects, mechanical, magnetic and heat treatment history.
Źródło:: Acta Physica Polonica A; 1997, 91, 2; 487-490
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Magnetomechanical coupling in Fe73.5Cu1Nb1Ta2Si13.5B9 alloy strips after annealing up to 700°C and its dependence on magnetic field
Autorzy:: Kaczkowski, Z.
Vlasak, G.
Śvec, P.
Duhaj, P.
Milewska, E.
Krzyżewski, A.
Danis, E.
Powiązania:: https://bibliotekanauki.pl/articles/331521.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: A magnetomechanical coupling in the Fe73.5Cu1Nb1Ta2Si13.5B9 metallic glass strips in as-quenched state and after annealing in vacuum at the temperature range from 100 to 700oC was investigated. The maximum values of the magnetomechanical coupling coefficient (k) were obtained after annealing at 450oC (km = 0.38). Decrease of the magnetomechanical coupling (to 0.2 after annealing at 470oC, to 0.15 after annealing at 500oC, and to zero after annealing at 700oC) and a drop of the saturation magnetostriction (αs) of this alby from (23-25) x 10-6 for as-quenched state and after annealing at 450oC to 10 x 10-6 after annealing at 500oC, and to about 2 x 10-6 after annealing at 550oC is connected with the forming of the nanocrystalline phase. The ultrasound velocities in the strips depending on the heat treatment and magnetic bias field were changing from 3600 to 5300 m/s.
Źródło:: Hydroacoustics; 2001, 4; 105-108
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

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