Journal of Phase Equilibria

, Volume 15, Issue 3, pp 285–294 | Cite as

Thermochemical investigation of binary liquid mixtures in glass-forming oxide systems

  • F. Müller


Methods and equipment successfully employed in high- temperature calorimetry to measure partial and integral enthalpies of mixing in liquid oxide systems are reviewed with special attention given to the drop-mixing method. This technique has been used to measure enthalpies of mixing in binary liq-uid mixtures composed of network forming oxides (e.g. SiO2) and network modifying oxides (e.g. Na2O). Results for the systems Na2O-SiO2 and Na2O- B2O3 are presented graphically. Entropies of mixing were estimated by combining enthalpies with available data on Gibbs energies of mixing. Prominent thermochemical features of glass-forming oxide melts are pointed out. The observed thermodynamic behavior is discussed in relation to its structural basis.


Entropy Sodium Silicate Liquid Mixture Molar Enthalpy Configurational Entropy 
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Copyright information

© ASM International 1994

Authors and Affiliations

  • F. Müller
    • 1
  1. 1.Institut für GesteinshüttenkundeAachenGermany

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