TCUHTM2 Elements, Systems, and Phases
This section summarizes the available elements, assessed systems, and total number of phases in the TCS Ultra-high Temperature Materials Database (TCUHTM).
Included Elements
There are 8 elements included in the database.
| Included Elements | |||
|---|---|---|---|
| B | C | Hf | N |
| O | Si | Ta | Zr |
Assessed Systems and Phases
A hybrid approach of experiments, first-principles calculations and CALPHAD modeling have been used to obtain thermodynamic descriptions of the constituent binary and ternary systems over the whole composition and temperature ranges.
All the stable solution phases and intermetallic compounds that exist in each assessed system are included.
In most cases phases having the same crystal structure had been merged as the same phase.
The database contains:
- 28 assessed binary systems
- 41 assessed ternary systems (31 critically assessed and 10 tentatively assessed)
- 47 phases
In Console Mode, you can list phases and constituents in the Database (TDB) module and the Gibbs (GES) module. For some phases, supplementary information is included in the definitions. To show the information, it is recommended in the Database (TDB) module to use the command List_System with the option Constituents.