Dynamic stress sensitivity of Fe73.5Cu1(Ta or W)3Si15.5B7 ribbons after heat treatments in vacuum |
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| Authors: | L Lanotte Z Kaczkowski M Müller R Germano |
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| Institution: | (1) Dipartimento di Scienze Fisiche, INFM, P.le V. Tecchio 80, 80125 Napoli, Italy;(2) Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02-668 Warsaw, Poland;(3) Institute of Solid State and Materials Research, Dresden e.V. Helmholtzstrasse 20, D-01171 Dresden, Germany |
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| Abstract: | Summary The effects of heat treatments in vacuum on magnetic permeability, Young's modulus and magnetoelastic wave amplitude were
investigated in the amorphous ferromagnetic alloys Fe73.5Cu1Ta3Si15.5B7 and Fe73.5Cu1W3Si15.5B7 where tantalum or tungsten replaces niobium, which was generally used with the same atomic fractions of the other elements.
The stress sensitivity coefficient was also theoretically deduced in its developmentvs. the applied magnetic bias field. Structural relaxation and crystallization consequences are evidenced. Moreover an already
predicted relation between the maximum of magnetoelastic wave amplitude and the minimum of stress sensitivity coefficient
was confirmed. |
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| Keywords: | Magnetomechanical and magnetoelectric effects magnetostriction |
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