Microheterogeneous Structure
of a 0.45ZnO 0.22Na₂O 0.33P₂O₅ Melt:
Molecular Dynamics Simulation

G. G. Boiko, N. S. Andreev, and A. V. Parkachev

Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,
ul. Odoevskogo 24/2, St. Petersburg, 199155 Russia

Abstract—The microheterogeneous structure of the 0.45ZnO · 0.22Na₂O · 0.33P₂O₅ melt over a wide range of
temperatures is studied by the molecular dynamics method within an ionic approximation. The occurrence of the
regions enriched and depleted with sodium ions stems from the fact that the melt under study is close to the eutectic
composition. An increase in temperature of the melt brings about the disturbance of the “quasi-eutectic” structure.
The glass produced by ultrafast quenching from the melt inherits its structural microheterogeneity.

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