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Temperature dependence of the electrical resistivity and absolute thermoelectric power of amorphous metallic glass Ni33.3Zr66.7

Abstract : Electron transport properties and thermal stability of Ni33.3Zr66.7 metallic glass (MG) have been studied using an original device for simultaneous measurements of electrical resistivity and absolute thermoelectric power (ATP) controlled by a LabView software written by one of us. The electrical resistivity and absolute thermoelectric power were measured simultaneously and very accurately over a temperature range from 25 to 400 °C with a nominal heating rate of 0.5 K min− 1. The electronic thermal conductivity was also determined using the Wiedemann–Franz law in the same temperature range. Due to its high efficiency, this technique is more and more used because it is characterized by a high sensitivity to detection of the phase transitions related to electronic transport, which is the aim of this study. Analysis of the temperature dependence of the resistivity and ATP of the Ni33.3Zr66.7 glassy ribbons proves the potential of this characterization method to study the thermal behavior of metallic glasses. The crystal structure and the morphology of Ni33.3Zr66.7 metallic glass in the as-quenched state and after heat treatments were studied using X-ray diffraction (XRD), and scanning electron microscope (SEM).
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https://hal.univ-lorraine.fr/hal-02924324
Contributor : Jean-Georges Gasser Connect in order to contact the contributor
Submitted on : Thursday, August 27, 2020 - 11:49:51 PM
Last modification on : Monday, April 19, 2021 - 11:45:25 AM

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B. Smili, A. Messaoud, W. Bouchelaghem, L. Abadlia, N. Fazel, et al.. Temperature dependence of the electrical resistivity and absolute thermoelectric power of amorphous metallic glass Ni33.3Zr66.7. Journal of Non-Crystalline Solids, Elsevier, 2018, 481, pp.352-360. ⟨10.1016/j.jnoncrysol.2017.11.012⟩. ⟨hal-02924324⟩

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