Micro- and macro-mechanical properties of aluminophosphate glasses depending on their compozition and loading conditions

Abstract

In this study the deformation peculiarities of aluminophosphate glasses (Li2O-Al2O3-BaO-La2O3-P2O5) doped with Dy, Tb and Fe were investigated at concentated load action (indentation) and uniaxial compression. Dynamic nanoindentation techique with Berkovich indenter were used for hardness (H) and elastic modulus (E) measurements, as well as for the investigation of the kinetics of deformation through the analisys of strain rate during indentation and its influence on the deformation mechanisms.