Calorimetric Study of Kinetic Glass Transition in Various Glasses

摘要: Differential scanning calorimetry (DSC) experiments were carried out for metallic, ionic, and polymer glasses below above the glass transition temperature T g . The values of determined from DSC curves. A wide range heating rate, q =d /d t =0.1–100 K/min, was adopted dependence apparent value investigated. As decreased, decreased rapidly, then more slowly, approached a constant at low experimental result this kinetic analyzed, where relaxation time considered to be equal characteristic observation process experiment. Arrhenius Vogel–Tammann–Fulcher relaxation-time forms adopted. latter form found adequate explaining results, parameters in various glasses. On basis these results characteristics near transition...