Determination of the viscosity, thermal expansion, heat capacity, and bend stress relaxation temperature dependence of glassy alloys -a tool for understanding of relaxation phenomena

摘要

The temperature dependencies of theviscosity, the thermal expansion and heat capacity aswell as of the bend stress relaxation kinetics of aA125La50Ni25 glassy alloy have been determinedquantitatively. It has been shown that theexperimental temperature dependencies of theseproperties can be successfully described using theFree Volume Model. The calculation of the temperaturedependencies studied has been carried out with acommon set of model parameters. The reversibleanelastic part of bend stress relaxation, both underisothermal and non-isothermal experimentalconditions, was also experimentally determined.