HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Magnetomechanical coupling in Fe73.5Cu1Nb1Ta2Si13.5B9 alloy strips after annealing up to 700°C and its dependence on magnetic field

pp. 105-108, vol. 4, 2001

Zbigniew Kaczkowski
Polish Academy of Sciences Institute of Physics, Warszawa, Poland

Gabriel Vlasak
Slovak Academy of Sciences Institute of Physics, Bratislava, Slovakia

Peter Śvec
Slovak Academy of Sciences Institute of Physics, Bratislava, Slovakia

Pavol Duhaj
Slovak Academy of Sciences Institute of Physics, Bratislava, Slovakia

Elżbieta Milewska
Polish Academy of Sciences Institute of Physics, Warszawa, Poland

Andrzej Krzyżewski
Polish Academy of Sciences Institute of Physics, Warszawa, Poland

Elżbieta Danis
Polish Academy of Sciences Institute of Physics, Warszawa, Poland

Key words:

Abstract: 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.

Download: Fulltext PDF, BibTeX

© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)