Thermodynamic Properties of Glasses of the (GeTe3.76)1–x(AgI)x System in the 295–480 K Range of Temperatures

Key Points

• The aim is to investigate the thermodynamic properties of (GeTe3.76)1–x(AgI)x glasses at varying temperatures and compositions.
• Measured heat capacity using differential scanning calorimetry from 330 to 480 K.
• Determined density through hydrostatic weighing with AgI content from 10 to 50 mol%.
• Calculated the coefficient of thermal linear expansion via dilatometric study in the 295 to 385 K range.
• Developed predictive models for caloric and volumetric functions based on intermediate glass compositions.
• Density increases from 5.475 to 5.693 ± 0.005 g/cm3 as silver iodide content increases.
• Coefficient of thermal linear expansion across specified temperature ranges indicates systematic behavior.
• Standard caloric and volumetric functions calculated for the 0 to 450 K range provide insight into thermal properties.