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	Bimodal size distributed silver nanoparticles on copper substrate: in situ heat treating under air and protective atmospheres Sopoušek, J. ; Buršík, Jiří ; Zálešák, J. ; Pešina, Z. Silver bimodal nano-suspension was prepared by a wet synthetic route. Organic cover protected the particles. Interaction with copper substrate was monitored. The phenomena starting with temperature activation of the free surface of metallic nanoparticles and finishing with the formation of a bulk layer of Ag in between two Cu substrate were monitored by different in situ methods of thermal analyse, microscopy and conductivity measurement. This monitoring was carried out under different outer gas conditions. An important outcome is the estimation of heat effect, which is produced during low temperature sintering and aggregation of the Ag nanoparticles. Detailed record
	Electron Microscopy of Nanoparticles for Lead-free Soldering Prepared by Wet Chemical Synthesis Buršík, Jiří ; Škoda, D. ; Vykoukal, V. ; Sopoušek, J. In this work, Ag- and Sn-based nanopowders were prepared as potential low-toxic constituents of novel solders by a chemical wet synthesis from chemicals of high purity. Various ways of preparation and further storage of the product were examined. Resulting nanoparticles (their size distribution, morphology and tendency for clustering) were characterized by means of scanning and transmission electron microscopy with energy dispersive X-ray analysis techniques. Detailed record
	Electron microscopy of nanoparticles for lead-free soldering prepared by wet chemical synthesis Buršík, Jiří ; Škoda, D. ; Vykoukal, V. ; Sopoušek, J. The nanoparticles of pure metals and alloys exhibit the depression of the melting point compared to bulk material, hence they are able to aggregate and to from firm interlayer joints at low temperatures. Exploiting this effect in soldering industry can save energy, work and materials. Using emulsions with nanopowders might be the solution of demanding task of replacing classical Sn-Pb solders by their lead-free substitutes. In this work, Ag- and Sn-based nanopowders were prepared as potential low-toxic constituents of novel solders by a chemical wet synthesis from chemicals of high purity. Various ways of preparation and further storage of the product were examined. Resulting nanoparticles (their size distribution, morphology and tendency for clustering) were characterization by means of scanning and transmission electron microscopy. Detailed record
	Measurement of mechanical properties of joints prepared by low temperature sintering of silver nanoparticles Pešina, Z. ; Sopoušek, J. ; Buršík, Jiří ; Škoda, D. Ag nanoparticles were synthetized by a one-pot thermolysis approach in acetonitrile using silver nitrate and dodecylamine as precursors. The resulting joints containing silver nanoparticles were tested for shear under variable pressure. Characterization of resulting layers were performed by means of nanoindentation experiments. Detailed record
	Microstructure and local mechanical properties of model joints with Pb-free nanopowders Buršík, Jiří ; Sopoušek, J. ; Buršíková, V. ; Zálešák, J. In this work, we studied the effect of lowering melting point of silver powder, as a potential low toxic constituent of novel solders. Detailed record

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