Structural study of sodium silicate glasses and melts

Low-Dimensional Network Formation in Molten Sodium Carbonate

“…The aim of this work is to address some key questions that have arisen from the previous studies. These include questions such as whether the liquids can be considered as simple molten salts, whether the internal geometry directly affects both melt structure and/or dynamics, and also how the liquid structure contrasts with typical silicates 10 17 18 19 20 21 . The development of simulation models will allow, for example, temperature-dependent structural properties to be probed and will help steer future experimental investigation.…”

“…The structure of the carbonate liquids can be usefully compared with silicates. Analogous sodium silicate glasses have been studied using both X-ray 21 and neutron diffraction 17 18 22 . The first peak in F x ( Q ) for (Na 2 O)(SiO 2 ) appears at around the same Q as the second peak in the corresponding carbonate 21 .…”

“…Analogous sodium silicate glasses have been studied using both X-ray 21 and neutron diffraction 17 18 22 . The first peak in F x ( Q ) for (Na 2 O)(SiO 2 ) appears at around the same Q as the second peak in the corresponding carbonate 21 . This peak is dominated by Na-Na and Na-Si(C) contributions and, as a result, this strongly indicates that the Na-Na periodicites are equivalent in the two melts.…”

Distribution of Sodium and Diffusion Mechanism in Sodium Silicate Liquid

“…the inter-atomic distances ( rAB Å) calculated from PRDF of sodium silicate Firstly, we examine the structural and dynamical characteristics in NS4 liquid. Table 1 lists the interatomic distances calculated from PRDF and these results are compared with experimental data [2,[20][21] for comparison. As seen, although rSiNa and rNaNa show some discrepancies, the constructed models are well consistent with experiments.…”

“…Glass-forming mixtures of SiO2 with an alkali oxide are the important materials group that has been widely applied in many fields such as: microelectronics, medicine (bio-material), high technology materials. Therefore, understanding their structure and dynamical properties is fundamentally necessary [1][2][3]. By using the neutron, X-ray diffraction (XRD) techniques, magic-angle spinning (MAS) nuclear magnetic resonance (NMR) [4,5] and simulation methods [6,7] observed the change in structure of alkali silicate.…”