Abstract
The correlation of characteristics of the crystallization process of iron-based magnetics Fe90Ni10 (I) and Fe90Ni1.5Si5.5B3P0.015 (II) and their relative electrical resistance and relative magnetic permeability were investigated. It is shown that the amorphous magnetics crystallize at definite temperatures in one or two steps. For these processes the kinetic and thermal parameters were determined. For Alloy I the activation energy is 349 kJ mol−1 and the frequency factor 7.7 × 1025 min−1. Alloy II shows two distinct processes with activation energies of 1193 and 950 kJ mol−1, with corresponding frequency factors of 3.6×1076 and 3.8×1061 min−1. The crystallization processes are accompanied by changes in electronic and magnetic structures, leading to decreases of both electrical resistance and magnetic permeability, especially in the range of crystallization temperatures of the amorphous magnetics.
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Šušić, M.V., Maričić, A.M. Correlation of the crystallization process of amorphous magnetics Fe90Ni10 and Fe90Ni1.5Si5.5B3P0.015 with changes of electrical resistance and magnetic permeability. J Mater Sci 27, 729–733 (1992). https://doi.org/10.1007/PL00020656
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DOI: https://doi.org/10.1007/PL00020656