Thermodynamic calculations in the Cu-In-Sn system

Abstract

Abstract

Changes in electrical conductivity of the Ag-In-Sn-Cu alloys as influence of different temperature regimes

“…Twenty tin rich alloys with compositions along cross section with molar ratio In:Ag:Cu=7:2:1 have been experimentally investigated. Ten compositions were chosen from wide concentration area in Ag-In-Sn-Cu system, due to the previous investigations [1][2][3][4][5][6][7][8][9][10][11][12].…”

“…All measured electrical conductivity values for A and B series showed many deviations. Rapidly changes which are observed are influenced by various intermetallic compounds in microstructure [12], so there could not be precisely defined increasing or decreasing curve as it was in the Ag-In-Sn or Cu-In-Sn alloys [7].…”

“…All alloys were not exposed to the same temperature regime. In contribution to this, there were differences in the structure and micro-hardness too [12]. In order to decrease the number of future experiments in the field of the best substitute for common Pb-Sn solder alloy, the regression model was applied.…”

“…In that purpose, various physical, chemical and mechanical properties of the candidate alloy, as well as the economic aspect have been considered. A significant part of work is to find a substitute for common Pb-Sn solder alloy, which has become complex and widely discussed [1][2][3][4][5][6][7][8][9][10][11][12]. The proper alloy must have the certain characteristics to satisfy:…”

10.5937/mmeb1402117k = Lead-free alloys for ecological solders manufacturing

“…High content of indium make higher price of solder. According to the above mention, the best results are reaching by the used solders with the follow content: 50-90% Sn, 10-30% In, till 10% Ag and till 2,5% Cu [6].…”