Size evolution of solid state area on the Ag-Cu phase diagram

Effect of size on the mutual solubility of components in Ag-Cu films have been studied in a wide temperature range by means of in situ electron-microscopy technique. It was shown that there is the eutectic temperature shift to lower temperatures and a significant increase in the components mutual solubility (especially silver solubility in copper) with a decrease in the system characteristic size. It was shown that the system characteristic size reduction leads to the solid state solubility area shrinking on the phase diagram.