Research output: Contribution to journal › Article › peer-review
High temperature mass spectrometric study of the thermodynamic properties of borosilicate systems. / Stolyarova, Valentina; Archakov, Ivan; Shultz, Mikhail.
In: High temperature science, Vol. 28, 01.12.1988, p. 79-86.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - High temperature mass spectrometric study of the thermodynamic properties of borosilicate systems
AU - Stolyarova, Valentina
AU - Archakov, Ivan
AU - Shultz, Mikhail
PY - 1988/12/1
Y1 - 1988/12/1
N2 - Data on the high temperature behavior of components of borosilicate glasses and melts are of great importance for the preparation and utilization of glasses in the electrovacuum industry, for obtaining gradient optical fibers, for incorporation of nuclear waste etc. Using high temperature mass spectrometry (Knudsen effusion method) the compositions and partial pressures of vapor over glasses and melts at 1273-1973 K have been studied in the B2O3-SiO2 system and in the multicomponent borosilicate systems containing Na2O, K2O, Li2O, CaO, MgO, Al2O3 and MoSi2. It has been shown that the evaporation of various components forms different vapor compositions. However, B2O3, SiO and alkali metaborates and their dimers are found in the vapor over the systems studied. Activities of the components have been determined. This makes it possible to calculate Gibbs free energies in multicomponent systems by the semiempirical Kohler method using the data on equilibria in binary systems.
AB - Data on the high temperature behavior of components of borosilicate glasses and melts are of great importance for the preparation and utilization of glasses in the electrovacuum industry, for obtaining gradient optical fibers, for incorporation of nuclear waste etc. Using high temperature mass spectrometry (Knudsen effusion method) the compositions and partial pressures of vapor over glasses and melts at 1273-1973 K have been studied in the B2O3-SiO2 system and in the multicomponent borosilicate systems containing Na2O, K2O, Li2O, CaO, MgO, Al2O3 and MoSi2. It has been shown that the evaporation of various components forms different vapor compositions. However, B2O3, SiO and alkali metaborates and their dimers are found in the vapor over the systems studied. Activities of the components have been determined. This makes it possible to calculate Gibbs free energies in multicomponent systems by the semiempirical Kohler method using the data on equilibria in binary systems.
UR - http://www.scopus.com/inward/record.url?scp=0024163931&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024163931
VL - 28
SP - 79
EP - 86
JO - High temperature science
JF - High temperature science
SN - 0018-1536
ER -
ID: 40729105