Institute of Physics of Materials AS CR, v. v. i. > Projects > Phase equilibria in Zn-Sn-X metallic systems for high-temperature lead-free solders

Phase equilibria in Zn-Sn-X metallic systems for high-temperature lead-free solders

InvestigatorRNDr. Aleš Kroupa, CSc.
Number of ProjectOC08053
AgencyMinisterstvo školství, mládeže a tělovýchovy
Duration2007-12-31 - 2011-06-29

The aim of this project is to study the multicomponent systems, which are possible candidate materials for the high temperature lead-free soldering, mainly from the point of view of the thermodynamic properties and phase equilibrium diagram assessments (WG 1). These results will serve as a background for evaluation of other physical and mechanical properties of prospective high-temperature solders. The study will cover materials convenient for soldering in the temperature range 230-350 °C, and are very important for the applications in the aerospace and automotive industry or for soldering in combination with multilayered metallisations, etc. The basic systems can be characterised as Sn-Zn-X (X = Al, Mg, Ni, Pd, Sb).


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

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


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

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