An assessment of the Ca-Fe-O-Si system
Abstract
The thermodynamic properties of the Ca-Fe-O-Si system have been studied with particular emphasis on the slag system CaO-FeO-Fe2O3-SiO2. One of the subsystems, Fe-O-Si, was evaluated simultaneously to be able to take into account the higher order information from the present system. The assessment was succeeded by a study of different modifications of the ionic two-sublattice model that was used to describe the liquid phase. This model allows description of the slag and the liquid metal with one set of parameters. A model has been chosen which is optimal with regard to the fit of experimental data, compatibility with related systems, and number of parameters needed. The assessment is based on recent evaluations of the subsystems. All the solid-solution phases have been described using the compound-energy model.
- Publication:
-
Metallurgical and Materials Transactions B
- Pub Date:
- August 1997
- DOI:
- 10.1007/s11663-997-0030-6
- Bibcode:
- 1997MMTB...28..577S