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An earlier structural model for binary silicate melts and glasses is extended to MF–BeF 2 (M=Li, K) systems. The evaluation of the thermodynamic properties as well as the phase diagrams for the binary LiF–BeF 2 system and the integral enthalpy of mixing of the KF–BeF 2 system are carried out with this model. This thermodynamic model is based on the assumption that each alkali...
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