Institute of Physics of Materials AS CR, v. v. i. > Projects > HISOLD - Advanced Solder Materials for High Temperature Application

HISOLD - Advanced Solder Materials for High Temperature Application

InvestigatorRNDr. Aleš Kroupa, CSc.
Number of ProjectCOST MP0602
AgencyEuropean Science Foundation
Duration2006-12-31 - 2011-12-30

Investigator RNDr. Aleš Kroupa, CSc. is the Chair of Management Committee of the whole project.
The focus of the COST Action is the investigation of Pb-free replacements for high-Pb solders for high-temperature applications. This comprises a study of the chemical, physical and mechanical properties of alloys containing a large number of permutations of different alloying elements. A multiscale approach is used:
meso-scale: The application of thermodynamics and kinetics to the study of alloying behaviour; the development of materials property databases.
macro-scale: The creation of a phenomenological description of corrosion and deformation processes occurring in a solder joint during fabrication and service,
micro- (nano-) scale: The investigation by experiment and modelling of the initial stage of the formation of intermetallic phases at the solder/substrate interface.
This is efficiently achieved through coordinated international cooperation providing a basis for interdisciplinary research. The action increases the basic understanding of alloys that can be used as Pb-free alternatives to high-temperature solders for practical applications, for example in the aerospace and automotive industries.
More details can be found at


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

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


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

Milcheva N., Brož P., Buršík J., Vassilev G.: Thermochemical and phase diagram studies of the Bi-Ni-Sn system. Thermochimica Acta 534 (2012) 41-50

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


Gandova V., Brož P., Buršík J., Vassilev G.: Thermochemical and phase diagram studies of the Sn-Zn-Ni system. Thermochimica Acta 524 (2011) 47-55