Abstract
In this paper, the temperature dependence of electrical resistivity (ρ–T), the thermodynamic and kinetic characteristics of Sn57Bi43 eutectic alloy melt structure transition were investigated; the activation energy of structure transition (Ea) and the continuous heating transformation curve (CHT curve) were calculated by a thermal analysis method. The results showed that, both resistivity and thermal parameters of Sn57Bi43 alloy changed abnormally at the range of 850–1100K, and their characteristic transition temperatures matched well each other, which verifies the existence of liquid–liquid structure transition(L–LST) in Sn57Bi43 alloy and the effectiveness of the resistivity and DSC experimental results, and the method of Kissinger and Ozawa can be applied to study the kinetic characteristics of Sn–Bi alloy melt structure transition.
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