Thermodynamic properties of B2O3 in the (Al2O3 + B2O3) binary system were investigated by vapor pressure measurement of B2O3 in equilibrium with (Al2O3 + B2O3) compounds or melts using double Knudsen cell mass spectrometry. The Gibbs free energy change of formation of Al18B4O33 (9Al2O3 2B2O3) was estimated from the vapor pressure in equilibrium with a mixture of Al18B4O33 and Al2O3 at 1573 K to 1673 K. And activities of B2O3 in the two-phase region Al18B4O33 and B2O3-rich liquid, and (Al2O3 + B2O3) melts were obtained at 1373 K to 1423 K by vapor pressure measurements.
Compounds
#
Formula
Name
1
Al2O3
aluminum oxide (Al2O3)
2
B2O3
boron oxide (B2O3)
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.