Viscosity, enthalpy relaxation and liquid-liquid transition of the eutectic liquid Ge15Te85
نویسندگان
چکیده
The viscosity and enthalpy relaxation in the Ge15Te85 eutectic liquid are investigated using a combination of parallel plate rheometry conventional modulated differential scanning calorimetry (DSC). results these measurements provide evidence for similar temperature dependence shear timescales this liquid. However, is found to be more than an order magnitude slower process. supercooled state above its melting point can described single fragility index, except over narrow region immediate vicinity where abruptly increases, signifying liquid-liquid transition. This anomalous jump coincides with onset exothermic event observed DSC cooling curve. Together, consistent transition that involves incipient immiscibility bypassed via rapid supercooling.
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ژورنال
عنوان ژورنال: Journal of Non-crystalline Solids
سال: 2021
ISSN: ['1873-4812', '0022-3093']
DOI: https://doi.org/10.1016/j.jnoncrysol.2020.120601