A new soft magnetic Fe75Ta5C20 amorphous alloy: Modelling and kinetics approach

Correlation between the activation energies of structural relaxation and viscous flow for BaO–P2O5–Al2O3 glasses

“…Majority of scientific reports dealing with the glass transition kinetics focus on the activation energy of this process. [21][22][23][24][25][26][27][28][29][30] It is indeed the most important parameter, as it determines the position of the glass transition phenomenon with respect to the temperature axis and describes its shift/evolution with experimental conditions (temperature T, heating or cooling rate q + / q -, applied stress, etc.). One of the other proposed meanings of the activation energy of structural relaxation is its similarity with the activation energy of viscous flow in the corresponding temperature region [31,32] the idea is based on the concept of the structural relaxation movements being mechanistically (on the atomic level) similar to the structural changes associated with the flow of the matter.…”