Materials Science. Non-Equilibrium Phase Transformations.
Vol. 5 (2019), Issue 4, pg(s) 135-137

The obtaining of Sn–Ag powder alloy by contact displacement in aqueous solutions

  • 1 Belarusian State University
  • 2 Research Institute for Physical Chemical Problems of the Belarusian State University, Belarus

Abstract

Sn-Ag powder alloy of eutectic composition is demanded in the production of powders for soldering pastes used in electronics. Non-eutectic alloy has found its application in catalysis for CO2 reduction, in 3D printing, as the promising material for lithium ion batteries. In this work the way of synthesis of Sn–Ag nanostructured powder alloy with near-eutectic composition based of cementation reaction in the system Sn0/Ag+ in aqueous solutions was proposed. The peculiarities of alloy powder synthesis in acid and slightly acid solutions were studied. Factors influencing on powder microstructure, phase and elemental composition were identified. Electrochemical behavior of tin in aqueous solutions for silver deposition was studied by potentiometric method.

Keywords

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