Thermodynamic Properties of Silicate Glasses and Melts:III.System Rb2O-B2O3-SiO2

摘要

The composition of vapor over the system Rb2O-B2O3-SiO2 and the activities of RbBO in melts of this system at 1000 K were determined.The sign of deviations of the RbBO2 and Rb2SiO3 activities from ideality changes in the melts under study.Borosilicate glasses are matrices for immobilization of radioactive waste;therefore,the study of vaporization and thermodynamic properties of components of glasses and melts of R2O-B2O3-SiO2 systems(R is an alkali metal)is of significant interest[2].