Theoretical calculus of the mechanical strength of binary oxide glasses

Abstract

Abstract The mechanical strength of the glasses is determined by the strength of the established bonds between the different macro-anionic species, these bonds being the weaker compared to the covalent ones inside the macro-anionic species. In this paper is proposed a probabilistic relationship to calculate the theoretical mechanical strength of the SiO2 glass and of some compositions in the Na2O⋅Si2 system, in good agreement with literature data.