Experimental investigation and thermodynamic assessment of phase equilibria in the Ag-Au-Sn system

F. Gao, C. P. Wang, Y. Y. Li, X. J. Liu, Y. Takaku, I. Ohnuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The phase equilibria of the Ag-Au-Sn ternary system at 300°C, 400°C, and 500°C were experimentally investigated. The equilibrium compositions of the equilibrated alloys and diffusion couples between Ag x Au 1-x (x = 0.25, 0.75) alloys and liquid Sn were determined by electron probe microanalysis (EPMA). The phase transformations were investigated by means of differential scanning calorimetry (DSC). Based on the experimental data of phase equilibria and thermodynamic properties, the thermodynamic assessment of the Ag-Au-Sn system was carried out based on the calculation of phase diagrams (CALPHAD) method. The thermodynamic parameters for describing the Gibbs free energies of the phases were optimized, and reasonable agreement between the calculations and experimental data was obtained.

Original languageEnglish
Pages (from-to)2096-2105
Number of pages10
JournalJournal of Electronic Materials
Volume38
Issue number10
DOIs
Publication statusPublished - 2009 Oct

Keywords

  • CALPHAD method
  • Pb-free solders
  • Sn-Ag-Au system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Experimental investigation and thermodynamic assessment of phase equilibria in the Ag-Au-Sn system'. Together they form a unique fingerprint.

Cite this