TCSALT2 Elements, Systems, and Phases
This section summarizes the available elements, assessed systems, and assessed phases in the TCS Molten Salts Database (TCSALT).
Included Elements
There are 12 elements included in the database.
| Included Elements | |||||
|---|---|---|---|---|---|
| Al | Ca | Cl | F | K | Li |
| Mg | Na | O | Si | Sr | Zn |
Assessed Systems
The most accurate calculations are obtained in or near these sub-systems and composition ranges. The most recent version of the database contains assessments of these systems:
Pseudo-Binary
- 28 Assessed Systems with Chloride (Cl)
- 25 Assessed Systems with Fluoride (F)
- 25 Assessed Systems with Oxygen (O)
Pseudo-Ternary
- 21 Assessed Systems with Chloride (Cl)
- 22 Assessed Systems with Fluoride (F)
- 22 Assessed Systems with Oxygen (O)
Higher Order
- 1 Assessed Chloride (Cl) System
- 1 Assessed Fluoride (F) System
Mixed
-
36 Assessed Mixed Systems
Assessed Phases
The most recent version of the database contains 177 phases in total.
TCSALT2 Models for the Included Phases
When using Console Mode, phases and constituents can be listed in the DATABASE (TDB) module and the Gibbs (GES) module. To show models and constituents for the phases in a chosen system, use the command LIST_SYSTEM with the option CONSTITUENTS in the TDB module.
IONIC_LIQ Phase
The liquid metal and slag (IONIC_LIQ) is described with the ionic two-sublattice liquid model [1985Hil; 1991Sun].
The advantage with the ionic two-sublattice model is that it allows a continuous description of a liquid which changes in character with composition. The model has successfully been used to describe liquid oxides, silicates, sulfides, fluorides as well as liquid short range order, molten salts and ordinary metallic liquids. At low level of oxygen, the model becomes equivalent to a substitutional solution model between metallic atoms.
Different composition sets of IONIC_LIQ designated by #1, #2 etc. (e.g. IONIC_LIQ#1) may be observed, which represent miscibility gaps frequently found in some systems.
The #n suffix (where n is an integer) is generated dynamically by Thermo‑Calc when using global minimization and therefore the identification of the phases should be determined from these compositions.