Mass Spectrometric Investigation of the Thermodynamic Properties of Glass Melts in the Cs_2O-B_2O_3-SiO_2 System at High Temperatures

摘要

The composition of the vapor and the activities of cesium metaborate CsBO_2 in glass melts of the Cs_2O-B_2O_3-SiO_2 system at a temperature of 1020 K are determined using high-temperature mass spectrome-try.The activities of the individual oxides Cs_2O,B_2O_3,and SiO_2 in glass melts of the Cs_2O-B_2O_3-SiO_2 system at a temperature of 1020 K are calculated by the Wagner method from the obtained values of the activities of CsBO_2.The integral and excess Gibbs energies are determined.