Arrhenius Crossover Temperature of Glass-Forming Liquids Predicted by an Artificial Neural Network.

ABSTRACT: The Arrhenius crossover temperature, TA, corresponds to a thermodynamic state wherein the atomistic dynamics of a liquid becomes heterogeneous and cooperative; and the activation barrier of diffusion dynamics becomes temperature-dependent at temperatures below TA. The theoretical estimation of this temperature is difficult for some types of materials, especially silicates and borates. In these materials, self-diffusion as a function of the temperature T is reproduced by the Arrhenius law, where the activation barrier practically independent on the temperature T. The purpose of the present work was to establish the relationship between the Arrhenius crossover temperature TA and the physical properties of liquids directly related to their glass-forming ability. Using a machine

SUBMITTER: Galimzyanov BN 

PROVIDER: S-EPMC9921151 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature