Premium
Fundamental thermodynamic aspects of the CaO–Al 2 O 3 –SiO 2 system
Author(s) -
Koroušić Blaženko
Publication year - 1991
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199101296
Subject(s) - gibbs free energy , calcium oxide , ladle , oxide , aluminium , aluminium oxide , materials science , metallurgy , mineralogy , thermodynamics , chemistry , physics
The most important metallurgical effects of ladle treatment of aluminium‐killed steels with calcium, are associated with the modification of alumina inclusion. For the development of the deoxidation‐control model for inclusions, the thermodynamic slag model, based on the Gibbs energy minimization and modelling approaches postulated from J. Hastie et al., was used to calculate component oxide activities in the system CaO–Al 2 O 3 and part of systems 3CaO · Al 2 O 3 – SiO 2 , 12 CaO · 7Al 2 O 3 – SiO 2 and CaO · Al 2 O 3 – SiO 2 at 1600°C.