Simulation of the glass transition of a thin aluminum melt layer at ultrafast cooling under isobaric conditions

It is shown that a sharp increase in viscosity, a change in the decay rate of correlations, and the appearance of nonequilibrium and transverse sound in a thin film of aluminum melt during rapid cooling occur in the same temperature range. The analysis is performed using the shear stress autocorrelation functions calculated by the molecular dynamics method. The cooling rate dependences indicate the transition of the metastable state into the amorphous one rather than a phase transition.

Funding Agency	Grant Number
Russian Science Foundation	18-19-00734
Ministry of Education and Science of the Russian Federation	5922.2018.8
This work was supported by the Russian Science Foundation (project no. 18-19-00734) (G.E. Norman, theoretical analysis of the temperature dependence of the attenuation decrement) and by the Council of the President of the Russian Federation for Support of Leading Scientific Schools (project no. 5922.2018.8) (V.V. Pisarev, E.M. Ki-rova, obtaining autocorrelation functions, calculating the viscosity coefficient, theoretical analysis of the dependences of dispersion and attenuation decrement).