Abstract
A thermodynamic model of silicate melts is outlined and its validity is demonstrated in the calculation of phase diagrams of different silicate, aluminosilicate and borate melts. The basis of the thermodynamic model is the definition of the chemical potential of the component as the sum of the chemical potentials of each individual atom of the component. Different energy and consequently structural states of atoms are considered. A further application of the thermodynamic model is demonstrated in the calculation of the surface adsorption of SiO2 in silicate melts according to the Gibbs equation. Additional information on the structure of silicate melts is offered by measurement of electric conductivity. Using multiple linear regression analysis the mobilities of charge carriers were estimated.
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