The morphologies of fractured surfaces and fracture toughness in some As-Se-Sb-S-I glasses

As part of a general physical characterization of amorphous materials in the pseudobinary system (As₂Se₃)_100−x(SbSI)_x type, their indentation fracture toughness was determined. It is a system with the variable ratio of classical amorphous compound As₂Se₃ and the molecule of antimony sulfoiodide, SbSI, which in the monocrystal form is characterized as ferroelectrics. Because of chalcogenides are generally very brittle and under load they crack very easily, these glasses have been studied with the aim of examining the possibility of obtaining some new structures on the basis of the materials with amorphous internal network, the structures that will have a higher quality in respect of mechanical properties. The morphologies of fractured surfaces were investigated by scanning electron microscope.