Local structure of liquids Al2O3 and GeO2 under densification

Abstract Molecular dynamic simulation has been conducted to study the local structure of liquid Al 2 O 3 and GeO 2 under densification. Those liquids are found to be a mixture of species of TO x . Here T is Ge or Al and x = 4, 5 and 6. This result is supported by the fact that the density, fraction of oxygen connectivity and volume of different void kinds are a linear function of TO x fraction. The microscopic mechanism of liquid densification is quantified and interpreted in term of the change in TO x fraction.