Structure and transport properties of the Fe<sub>0.5</sub>Ni<sub>0.5</sub> composite

Structure and transport properties of the Fe_0.5Ni_0.5 composite

G. Ya. Khadzhai¹, S. R. Vovk^2,3, R. V. Vovk¹, E. S. Gevorkyan^1,2, M. V. Kislitsa¹, A. Feher³, P. Kollar³, and J. Fuzer³

¹V. N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
E-mail: gkhadjai@gmail.com;
rvvovk2017@gmail.com

²Ukrainian State University of Railway Transport, Kharkiv 61050, Ukraine

³Faculty of Science, P. J. Safarik University, Kosice 041 54, Slovakia
pos Анотація:561

Received October 28, 2020, revised November 29, 2020, published online December 25, 2020

It is shown that the experimental data on the temperature dependences of the effective electrical resistance and thermal conductivity in the range of 4.2–300 K of the electroconsolidated Fe_0.5Ni_0.5 composite are within the Hashin–Shtrikman boundaries for the conductivities of a three-phase system. The components of the system are pure Fe and Ni, and the intergranular medium in the form of an alloy with an average composition close to Fe_0.5Ni_0.5 is considered as the third phase.

Key words: electroconsolidated composite, electrical resistance, thermal conductivity, Hashin–Shtrikman boundaries, three-phase system, intergranular medium.

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Structure and transport properties of the Fe0.5Ni0.5 composite

Structure and transport properties of the Fe_0.5Ni_0.5 composite