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Information × Registration Number 0224U001522, 0122U001521 , R & D reports Title Optimization of physical properties of nanocomposites based on metal eutectics for lead-free solders popup.stage_title Head Plevachuk Yurii O., Доктор фізико-математичних наук Registration Date 25-01-2024 Organization Ivan Franko National University of Lviv popup.description2 The object of research is the interrelationship of phase formation processes, thermodynamic and kinetic conditions of phase stability in metal multicomponent systems, their connection with the mechanism of electronic and atomic structure formation, and their influence on the general characteristics of these systems. The subject of the research project was the effect of metallic and non-metallic micro- and nano-sized impurity elements on the structure and structure-sensitive properties of rapidly hardened metal alloys, taking into account the kinetic and thermodynamic conditions of their production. The purpose of the work is to choose the composition and optimal modes of connection of materials, taking into account the temperature dependence of the elemental and phase composition of the structure and the physical properties of molten and rapidly hardened crystalline and amorphous phases. Research methods – study and analysis of the structure, microstructure, phase transitions, thermophysical and structure-sensitive properties of composite materials (electrical conductivity, specific electrical resistance, thermopower, viscosity). Strengthening of composite solders based on Sn–Ag–Cu alloys by adding nano-sized impurities that reduce brittleness and increase thermal stability of soldered joints was studied. Experimental samples of nanodisperse materials for lead-free solders were created; improved technological conditions for the production of solders for possible use in electronic components of military equipment and microelectronics. All physical quantities are given in the SI system. Product Description popup.authors Mudry Stepan I. Yulia S. Nykyruy Poverzhuk Viktor Olehovych Sklyarchuk Vasyl M. Tkach Olha R Shtablavyi Ihor I. popup.nrat_date 2024-01-25 Close