Evaluation of thermodynamic properties of alkaline borogermanates and germanosilicates using the regression analysis method

Authors : Mikhail SHTENBERG, Valery BYCHİNSKY, Alexey TUPİTSYN, Olga KOROLEVA

Pages : 252-258

Doi:10.5541/ijot.764760

View : 15 | Download : 6

Publication Date : 2020-11-27

Article Type : Research Paper

Abstract :A novel method for calculating the thermodynamic properties of ternary oxides using borogermanates and germanosilicates as examples is proposed. Using regression coefficients obtained for germanates, borates and silicates, the heat capacity, formation enthalpy, entropy and Gibbs free energy of alkaline borogermanates and germanosilicates were calculated. The obtained enthalpy of formation values are in good agreement with experimental data. In the regression equation, the alkaline oxide thermodynamic potential coefficients were found to depend on the class of compound.
Keywords : thermodynamic potentials, borogermanate, germanosilicate, regression analysis, evaluation