| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications XI
|
| Presentation Title |
Phase Diagrams of the Ag-Cu-Se-Te Quaternary System |
| Author(s) |
Yohanes Hutabalian, Sinn-wen Chen |
| On-Site Speaker (Planned) |
Yohanes Hutabalian |
| Abstract Scope |
The Ag-Cu-Te-Se quaternary system has many well-known thermoelectric compounds and is an important material system. Phase diagrams of the Ag-Cu-Se-Te quaternary system are determined in this study. Phase diagrams of its six binary constituent systems are adopted from assessed literatures. Determinations of the isothermal sections and liquidus projections of its four constituent ternary systems, Ag-Cu-Se, Ag-Se-Te, and Ag-Cu-Te, Cu-Se-Te, are carried out. Ternary compounds, AgCuSe and AgCuTe, are found at 400 and 600℃ in the Ag-Cu-Se and Ag-Cu-Te systems, respectively. The compositional regimes of the miscibility gaps in the Ag-Cu-Se and Ag-Cu-Te ternary systems are quite significant at 400 and 600℃. There is no ternary compound in the Ag-Se-Te system, and there are two ternary compounds in the Cu-Se-Te system. A Calphad-type thermodynamic modeling is carried out. A good agreement has been obtained between the experimental and the calculated phase diagrams. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Solidification, |