Dilatometric analysis of the process of the nanocrystallization of Fe72.5Cu1Nb2Mo1.5Si14B9 soft magnetic alloy
- 37 Downloads
The process of the nanocrystallization of magnetically soft Fe72.5Cu1Nb2Mo1.5Si14B9 alloy has been studied using dilatometry and thermomagnetic analysis, together with structural investigations. It has been shown that the amount of nanocrystalline phase precipitated upon heating of the amorphous precursor is in good agreement with a shortening of the ribbon length in the course of crystallization. Thermal expansion at the different stages of heating and cooling depends on the structural and phase states, as well as on the magnetic state of the alloy. The numerical value of the coefficient of linear thermal expansion decreases with an increase in the fraction of the ferromagnetic crystalline phase.
Keywordssoft magnetic alloy crystallization nanocrystalline structure dilatometry
Unable to display preview. Download preview PDF.
- 3.Y. Yoshizawa, “Nanocrystalline soft magnetic materials and their applications,” in Handbook of Advanced Magnetic Materials, Vol. 4: Properties and Applications, Ed. by Y. Liu, D. J. Sellmyer, and D. Shindo (Springer, New York, 2006), pp. 124–158.Google Scholar
- 5.V. I. Keilin, V. Ya. Belozerov, and Yu. N. Starodubtsev, “Magnetic alloy for annealing in oxide medium and method of its production,” RF Patent 2009258, 1994.Google Scholar
- 6.V. Ya. Belozerov, Yu. N. Starodubtsev, V. I. Keilin, “Strip core from magnetic alloy on the base of iron,” RF Patent 2033649, 1995.Google Scholar
- 7.Yu. N. Starodubtsev and V. Ya. Belozerov, Magnetic Properties of Amorphous and Nanocrystalline Alloys (Izd. Ural. Univ., Ekaterinburg, 2002) [in Russian].Google Scholar
- 14.O. Kubaschewski, Iron—Binary Phase Diagrams (Springer, Berlin, 1982).Google Scholar
- 17.V. A. Barinov, V. I. Voronin, V. A. Kazantsev, V. A. Tsurin, V. V. Fedorenko, S. I. Novikov, and V. T. Surikov, “Structure and magnetic properties of metastable Fe–B phase,” Phys. Met. Metallogr. 100, 456–467 (2005).Google Scholar