Hemijska Industrija (Jan 2008)

Phase equilibria investigation and alloys characterization in Sn-In-Ag system

  • Milosavljević Aleksandra R.,
  • Živković Dragana T.,
  • Manasijević Dragan,
  • Talijan Nadežda,
  • Grujić Aleksandar,
  • Ćosović Vladimir

DOI
https://doi.org/10.2298/HEMIND0803148M
Journal volume & issue
Vol. 62, no. 3
pp. 148 – 152

Abstract

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Lead-free soldering has become very popular in the world recently, especially in electronics, because of high ecological demands in industry. Some of lead-free solder alloys are already used in electronic industry, but despite that investigations are still going in order to find suitable replacement for Pb-Sn standard solder. In this paper phase equilibria and characterization of Sn-In-Ag alloys in section In:Ag = 7:3 are investigated. The results of phase diagram calculation are obtained by ThermoCalc software, and characteristic temperatures by DSC method. The results of XRD analysis, optical microscopy, microhardness and electrical conductivity are also presented. These results are given in order to contribute the knowledge about lead-free solders, especially Sn-In-Ag solder alloys, which are potential candidates for replacement standard lead solders.

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