Dresden 2020 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 18: Poster Session I
MM 18.34: Poster
Monday, March 16, 2020, 18:15–20:00, P4
Effects of annealing and thermal history of glassy materials — •Alexander Heinrich, Julian Pries, and Matthias Wuttig — Institute of Physics IA, RWTH Aachen University, 52074 Aachen, Germany
The relaxation dynamics of glassy materials can vary dependent on its thermal history and of the material itself. To understand structural relaxation dynamics more, this process is simulated according to Hodge and Berens. They published their simulating scheme as early as 1981. This simulation uses the expression of Tool Narayanaswamy Moynihan (TNM). This simulation numerically solves the TNM-equation of the fictive temperature Tf for discrete temperature steps. Thereby the normalized heat capacity is calculated by deviating the fictive temperature by temperature. By reproducing this simulation and results of Hodge and Berens, the simulation can be used to simulate the cooling and heating cycle of a glassy material. The simulation enables the prediction of glass dynamics close to the glass transition for different thermal histories.