New interaction potentials for alkali and alkaline-earth aluminosilicate glasses

Area of Science:

• Materials Science
• Computational Chemistry
• Glass Science

Background:

• Alkali and alkaline-earth aluminosilicate glasses are crucial industrial materials.
• Accurate predictive models for glass properties are essential for material design.
• Developing reliable interatomic potentials is key to simulating glass behavior.

Purpose of the Study:

• To develop and validate effective potentials for alkali and alkaline-earth aluminosilicate glasses.
• To enable accurate prediction of glass structure and properties using computational methods.
• To assess the transferability and mixing of potentials for multicomponent systems.

Main Methods:

• Optimization scheme applied to generate effective potentials.
• Input data: radial distribution functions from ab initio molecular dynamics simulations.
• Input data: experimental density and elastic modulus of glasses.

Main Results:

• New potentials reliably reproduce structure, mechanical, and vibrational properties of binary silicates.
• Potentials demonstrate transferability and mixing capabilities for ternary systems.
• Accurate prediction of structure and properties for multicomponent glasses is achieved.

Conclusions:

• The developed effective potentials offer a robust tool for simulating aluminosilicate glasses.
• The transferability of potentials facilitates the study of complex multicomponent glass systems.
• This work advances the computational design and understanding of advanced glass materials.