Institute of Physics of Materials AS CR, v. v. i. > People > Kroupa Aleš

RNDr. Aleš Kroupa, CSc.

Room415, 409, 118
Phone number+420 532 290 467, +420 532 290 474, +420 532 290 482
E-mail[javascript protected email address]
Researcher IDA-1162-2014
ORCID0000-0001-6339-2089
Positionresearcher - Structure of Phases and Thermodynamics Group

Scientific interest
  • Experimental and theoretical study of phase diagrams and thermodynamic properties
  • PD modeling using the CALPHAD method in combination with ab initio calculations

Education

• 1985-1989: Doctoral degree - Institute of Physical Metallurgy ASCR, Physical Metallurgy and Limiting States of Materials • 1978-1983: Master’s degree - Masaryk University, Faculty of Sciences, Solid State Physics

Work experiences

• From 08/2025: Researcher - Structure of Phases and Thermodynamics Group, Institute of Physics of Materials, CAS • 2012-2025: Head of research group - Structure of Phases and Thermodynamics Group, Institute of Physics of Materials, CAS • 1993-2011: Researcher - Structure of Phases and Thermodynamics Group, Institute of Physics of Materials, CAS • 1991-1993: Postdoc - Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada • 1989-1991: Researcher - Structure of Phases and Thermodynamics Group, Institute of Physics of Materials, CA

Awards

• 1996: Vanadium Award - Awarded by the „The Institute of Materials“ society for the paper "Precipitation behavior in a medium carbon, Ti-V-N microalloyed steel", published in the Metall. and Mater. Transaction • 2024: Elected the vice-chair of the Alloy Phase Diagram International Committee (www.apdic.info). • 2024: Ales Kroupa, Ondrej Zobac, Adela Zemanova – Editor’s Choice Award for 2024 from the Journal of Phase Equilibria and Diffusion for the paper “A. Kroupa, O. Zobac, A. Zemanova. K.W. Richter; “CALPHAD-type Reassessment of Cu-Si and Full Assessment of the Al-Cu-Si Systems”, J. Phase Equil. Diff., 45(6), 1206-1243 (2024), doi: 10.1007/s11669-024-01160-5

2026

Zobač O., Žižka R., Richter K., Smetana B., Zlá S., Kawuloková M., Kroupa A.: Experimental study of the phase diagram of the La-Ni-Sn system at 300 and 600 C. Metals and Materials International 32 (2026) 2653-2666


2025

Mikšík D., Zobač O., Pavlů J., Kroupa A.: Experimental phase diagram of the Co-Se-Sn system at 400, 600 and 1000 °C. J. Alloys Comp. 1044 (2025) 184561

Zobač O., Novák D., Pavlů J., Friák M., Kroupa A.: Thermodynamic study of binary phase diagram iron-selenium. CALPHAD 88 (2025) 102774


2024

Kroupa A., Zobač O., Zemanová A., Richter K.: CALPHAD-type reassessment of Cu-Si and full assessment of the Al-Cu-Si systems. J. Phase Equil. Diffus. 45 (2024) 1206 -1243

Friák M., Zobač O., Chlup Z., Fikar O., Papež P., Zelený M., Kroupa A.: Materials properties of defect-stabilized off-stoichiometric tau-phase Al2Ge2Mg. Intermetallics 169 (2024) 108294

Zobač O., Kroupa A., Dinsdale A.: Use of third generation data for the pure elements to model the thermodynamics of binary alloy systems: Part 3 - The theoretical prediction of the Al-Si-Zn system. CALPHAD 87 (2024) 102742


2023

Zobač O., Karpíšková L., Kroupa A.: Experimental study of the ternary phase diagram Al-Ge-Mg. J. Phase Equil. Diffus. 44 (2023) 127-136

Zobač O., Žižka R., Roupcová P., Kroupa A.: Experimental study of the Ni-Se-Sn phase diagram isothermal sections at 800 K, 1000 K and 1100 K. J. Phase Equil. Diffus. 44 (2023) 594-605

Zobač O., Kroupa A.: CALPHAD-Based thermodynamic description of the binary phase diagram Ge-Ti. J. Phase Equil. Diffus. 44 (2023) 115-126


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

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

Svoboda J., Drdlíková K., Drdlík D., Kroupa A., Michalička J., Maca K.: Doping of alumina ceramics by manganese Thermodynamical and experimental approach. Process. Appl. Ceram. 16 (2022) 13-21

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


2021

Kroupa A., Record M., Chen H., Zobač O.: Bi-Sb-Sn (Bismuth-Antimony-Tin). Ternary Alloys - A Comprehensive Compendium of Evaluated Constitutional Data and Phase Diagram 20 (2021) 240-253

Vřešťál J., Kroupa A., Zobač O.: Ni-Sb-Sn (Nickel-Antimony-Tin). Ternary Alloys - A Comprehensive Compendium of Evaluated Constitutional Data and Phase Diagram 20 (2021) 534-554

Zobač O., Buchlovská K., Pavlů J., Kroupa A.: Thermodynamic Description of Binary System Nickel-Selenium. J. Phase Equil. Diffus. 42 (2021) 468-478

Gröbner J., Kroupa A., Zobač O.: Bi-Sn-Zn (Bismuth-Tin-Zinc). Ternary Alloys - A Comprehensive Compendium of Evaluated Constitutional Data and Phase Diagram 20 (2021) 254-271

Homolová V., Kroupa A.: Thermodynamic modeling of the Al-Co-Pd ternary system, aluminum rich corner. Metals 11 (2021) 1803

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

Friák M., Mazalová M., Turek I., Zemanová A., Kastil J., Kamarád J., Míšek M., Arnold Z., Schneeweiss O., Všianská M., Zelený M., Kroupa A., Pavlů J., Šob M.: An Ab Initio Study of Pressure-Induced Changes of Magnetism in Austenitic Stoichiometric Ni2MnSn. Materials 14 (2021) 523

Gröbner J., Kroupa A., Zobač O.: Cr-Ni-Si (Chromium-Nickel-Silicon). Ternary Alloys - A Comprehensive Compendium of Evaluated Constitutional Data and Phase Diagram 20 (2021) 294-313

Zobač O., Kroupa A.: Ag-Bi-Sn (Gold-Bismuth-Tin). Ternary Alloys - A Comprehensive Compendium of Evaluated Constitutional Data and Phase Diagram 20 (2021) 165-176

Kroupa A., Zobač O., Richter K.: The thermodynamic reassessment of the binary Al-Cu system. J. Mater. Sci. 56 (2021) 3430-3443

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

Vykoukal V., Zelenka F., Buršík J., Káňa T., Kroupa A., Pinkas J.: Thermal properties of Ag@Ni core-shell nanoparticles. CALPHAD 69 (2020) 101741

Zobač O., Kroupa A.: The Thermodynamic Assessment of the Binary System Bi-Rh. J. Phase Equil. Diffus. 41 (2020) 900-906

Zobač O., Kroupa A., Richter K.: Experimental isothermal sections of the ternary phase diagram Al-Cu-Si at 600 °C and 800 °C. J. Mater. Sci. 55 (2020) 15322-15333

Brož P., Zelenka F., Vřešťál J., Zemanová A., Kroupa A., Buršík J., Svoboda M., Šimoníková L., Pokorný T.: Experimental study and thermodynamic re-assessment of the Co-Sb system. CALPHAD 68 (2020) 101694

Zobač O., Kroupa A., Richter K.: Experimental study of the Al-Cu-Zn ternary phase diagram. Mater. Sci. 55 (2020) 10796-10810

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

Chen S., Huang ., Hsu Y., Kroupa A.: Phase Diagram of the Pb-Se-Sn System. J. Electronic Mater. 49 (2020) 4714-4729

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


2019

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

Kroupa A., Watson A.: In Celebration of Prof. Jan Vřešťál's 80th Birthday. J. Phase Equil. Diffus. 40 (2019) 1-2

Kroupa A., Vykoukal V., Káňa T., Zemanová A., Pinkas J., Šob M.: The theoretical and experimental study of the Sb-Sn nano-alloys. CALPHAD 64 (2019) 90-96

Zobač O., Kroupa A., Zemanová A., Richter K.: Experimental Description of the Al-Cu Binary Phase Diagram. Metall. Mater. Trans. A 50 (2019) 3805-3815

Kroupa A., Pavlů J., Šob M.: Professor Jan Vřešťál and His Contributions Towards the Implementing of Ab Initio Data into the CALPHAD Method and Extension of the Phase Diagram Calculations Down to 0 K. J. Phase Equil. Diffus. 40 (2019) 3-9


2017

Falat L., Ciripová L., Homolová V., Kroupa A.: The influence of isothermal ageing and subsequent hydrogen charging at room temperature on local mechanical properties and fracture characteristics of Martensitic- Bainitic weldments for power engineering. J. Mining Metall. B 53B (2017) 373-382

Kroupa A., Mazalová M., Richter K.: The reassessment of the Al-V system and new assessment of the Al-Si-V system. CALPHAD 59 (2017) 47-60


2016

Repovský P., Homolová V., Ciripová L., Kroupa A., Zemanová A.: Experimental study and thermodynamic modelling of the B-Fe-Mn ternary system. CALPHAD 55 (2016) 252-259


2015

Kroupa A., Káňa T., Buršík J., Zemanová A., Šob M.: Modelling of phase diagrams of nanoalloys with complex metallic phases: Application to Ni-Sn. Phys. Chem. Chem. Phys. 17 (2015) 28200-28210

Zobač O., Sopoušek J., Kroupa A.: Calphad-type assessment of the Sb-Sn-Zn ternary system. CALPHAD 51 (2015) 51-56


2014

Kroupa A., Mishra R., Rajamohan D., Flandorfer H., Watson A., Ipser H.: Phase equilibria in the ternary Ni-Sb-Sn system: Experiments and calculations. CALPHAD 45 (2014) 151-166

Homolová V., Repovský P., Výrostková A., Kroupa A.: Experimental and theoretical determination of phase fraction in the Fe-B-V alloys. J. Phase Equil. Diffus. 35 (2014) 172-177


2013

Kroupa A.: Modelling of phase diagrams and thermodynamic properties using Calphad method - Development of thermodynamic databases. Comp. Mater. Sci. 66 (2013) 3-13

Schmetterer C., Zemanová A., Flandorfer H., Kroupa A., Ipser H.: Phase equilibria in the ternary In-Ni-Sn system at 700 degrees C. Intermetallics 35 (2013) 90-97

Homolová V., Výrostková A., Ciripová L., Kroupa A.: Phase analysis of Fe-B-V system. Kovové materiály 51 (2013) 135-139

Mishra R., Kroupa A., Zemanová A., Ipser H.: Phase Equilibria in the Sn-Rich Corner of the Ni-Sb-Sn System. J. Electronic Mater. 42 (2013) 646-653


2012

Mishra R., Zemanová A., Kroupa A., Flandorfer H., Ipser H.: Synthesis and characterization of Sn-rich Ni-Sb-Sn nanosolders. J. Alloys Comp. 513 (2012) 224-229

Kroupa A., Andersson D., Hoo N., Pearce J., Watson A., Dinsdale A., Mucklejohn S.: Current Problems and Possible Solutions in High-Temperature Lead-Free Soldering. J. Mater. Eng. and Performance 21 (2012) 629-637

Zemanová A., Kroupa A., Dinsdale A.: Theoretical assessment of the Ni-Sn system. Monatshefte für Chemie 143 (2012) 1255-1261

Kroupa A., Dinsdale A., Watson A., Vřešťál J., Zemanová A., Brož P.: The Thermodynamic database COST MP0602 for materials for high-temperature lead-free soldering. J. Mining Metall. B 48 (2012) 339-346

Homolová V., Kroupa A., Výrostková A.: Calculation of Fe-B-V ternary phase diagram. J. Alloys Comp. 520 (2012) 30-35

Mishra R., Kroupa A., Terzieff P., Ipser H.: Thermochemistry of liquid Ni-Sb-Sn alloys. Thermochimica Acta 536 (2012) 68-73

Smetana B., Zlá S., Kroupa A., Žaludová M., Drápala J., Burkovič R., Petlak D.: Phase transition temp. of Sn-Zn-Al system and their comparison with calculated phase diagrams. J. Therm. Anal. Calorim. 110 (2012) 369-378


Number of ProjectName
22-22187S The theoretical and experimental study of the Al-Ge-Mg-Sn systems, application of novel 3rd generation data in CALPHAD-type thermodynamic modelling
18-25660J Complex theoretical and experimental phase diagram determinations of the advanced thermoelectric Ag-Pb-Sn-Te and Pb-Se-Sn-Te systems
17-15405S Advanced experimental and theoretical approaches to size-dependent phase diagrams of nanoalloys
GA14-15576S Complex study of phase diagrams of advanced metallic materials, combining ab initio and semiempirical modelling with experimental methods
LD11024 Theoretical and experimental study of phase diagrams of nanoalloys
P108/10/1908 Thermodynamics of intermetallic phases using combined theoretical and experimental approach
OC08053 Phase equilibria in Zn-Sn-X metallic systems for high-temperature lead-free solders
COST MP0602 HISOLD - Advanced Solder Materials for High Temperature Application
106/07/1078 Theoretical and experimental investigations of thermodynamic properties in transition metal based intermetallic phases
NMP2-CT-2003- 505504 European Lead - Free Soldering Network
COST OC 531.02 Lead Free Solder Materials