This work aimed to mathematically model the glass transition temperature
(Tg), one of the most important parameters regarding the behavior of slag,
responsible for the sudden change in thermomechanical properties of
non-crystalline materials, by the chemical composition of the SiO2-Na2O-CaO
system, widely applicable in the production of glasses and constituent of iron,
magnesium and aluminum metallurgy slags. The SciGlass database was used to
provide data for mathematical modeling through the Python programming language,
using the method of least squares. A new equation was established, called P
Model, and it presented a lower mean absolute error and lower standard
deviation of absolute errors in relation to 3 equations in the literature. The
raised equation provides significant results in the mathematical modeling of Tg
by the chemical system SiO2-Na2O-CaO, valid for the limits of the data used in
the mathematical modeling.Comment: 5 pages, 3 figures, 2 table