Institute of Physics of Materials AS CR, v. v. i. > Projects > Complex theoretical and experimental phase diagram determinations of the advanced thermoelectric Ag-Pb-Sn-Te and Pb-Se-Sn-Te systems

Complex theoretical and experimental phase diagram determinations of the advanced thermoelectric Ag-Pb-Sn-Te and Pb-Se-Sn-Te systems

InvestigatorRNDr. Aleš Kroupa, CSc.
Number of Project18-25660J
Internal Project Number318220
AgencyGrantová agentura České republiky
Duration2018-01-01 - 2020-12-31

Anotace
The projects deals with Ag-Pb-Sn-Te and Pb-Se-Sn-Te systems, which are important for thermoelectric materials. E.g. PbTe, SnTe, Ag-Pb-Te, are all promising thermoelectric alloys. For further improvement of their properties and understanding of materials microstructural evolution, phase diagrams are very important. This project proposes to investigate the phase diagrams of the Ag-Sn-Te, Pb-Se-Sn, Ag-Pb-Sn and Pb-Se-Te systems by experiments and combination of Calphad-and ab initio calculation. The applicant’s team was among the first to develop and apply this progressive combined theoretical approach to the phase diagram modellings. As the second step, the available thermodynamic models and phase diagrams of all the related subsystems of above mentioned two quaternary systems will be reviewed and assessed. The consistent thermodynamic database for these systems is its main aim. This project is joint-effort of Professor Sinn-wen’s Taiwanese group and Dr. Ales Kroupa’s Czech group. Both groups’ ability on phase diagram studies will be enhanced through this international collaboration.

2022

Zobač O., Richter K., Kroupa A.: Experimental Phase Diagram of the Ag-Se-Sn System at 250, 400 and 550 °C. J. Phase Equil. Diffus. 43 (2022) 32-42

Chen S., Kroupa A., Du J., Zemanová A., Hutabalian Y., Vřešťál J., Chiu K.: Experimental and Theoretical Study of the Ag-Sn-Te Phase Diagram. J. Phase Equil. Diffus. 43 (2022) 139-163

Zobač O., Zemanová A., Chen S., Kroupa A.: CALPHAD-Type Assessment of the Pb-Se-Sn System. J. Phase Equil. Diffus. 43 (2022) 243-255


2021

Chen S., Huang ., Hsu Y., Liu J., Zemanová A., Kroupa A.: Phase diagram of Pb-Se-Te system I: Experimental study. CALPHAD 74 (2021) 102310

Fikar O., Vřešťál J., Kroupa A., Chen S.: The study of the Pb-Se-Te phase diagram: Part 2 - The thermodynamic assessment of the Se-Te and Pb-Se-Te systems. CALPHAD 74 (2021) 102309


2020

Dinsdale A., Zobač O., Kroupa A., Khvan A.: Use of third generation data for the elements to model the thermodynamics of binary alloy systems: Part 1 - The critical assessment of data for the Al-Zn system. CALPHAD 68 (2020) 101723

Du J., Zemanová A., Hutabalian Y., Kroupa A., Chen S.: Phase diagram of Ag-Pb-Sn system. CALPHAD 71 (2020) 101997


2019

Jedličková V., Zemanová A., Kroupa A.: The Thermodynamic Assessment of the Co-Sn System. J. Phase Equil. Diffus. 40 (2019) 21-33