| Abstract Scope |
Alkaline earth aluminosilicate glasses are pivotal in numerous high-end industries and glass applications. In magnesium-aluminum silicate glass systems, variations in magnesium concentration usually exhibit notable impacts on macroscopic elastic properties. Employing molecular dynamics simulations, the fracture behavior of magnesium-aluminum silicate glass under uniaxial stretching was observed at the microscopic scale. The research reveals a non-linear correlation between magnesium concentration, maximum fracture stress, and glass brittleness. Whether the concentration of magnesium oxide influences the glass fractures brittlely or with ductility, while the ductile fracture is influenced by magnesium bias and reduced aluminum content affects both types of fractures. From this, we could predict the onset of glass fracture failure by monitoring changes in the distribution of magnesium and aluminum. |