Thermodynamic Assessment of Ag-Cu-In

Christopher Muzzillo, Tim Anderson

Research output: Contribution to journalArticlepeer-review

9 Scopus Citations


The Ag–Cu–In thermodynamic material system is of interest for brazing alloys and chalcopyrite thin-film photovoltaics. To advance these applications, Ag–Cu–In was assessed and a Calphad model was developed. Binary Ag–Cu and Cu–In parameters were taken from previous assessments, while Ag–In was re-assessed. Structure-based models were employed for β-bcc(A2)-Ag3In, γ-Ag9In4, and AgIn2 to obtain good fit to enthalpy, phase boundary, and invariant reaction data for Ag–In. Ternary Ag–Cu–In parameters were optimized to achieve excellent fit to activity, enthalpy, and extensive phase equilibrium data. Relative to the previous Ag–Cu–In assessment, fit was improved while fewer parameters were used.

Original languageAmerican English
Pages (from-to)6893-6910
Number of pages18
JournalJournal of Materials Science
Issue number9
StatePublished - 1 May 2018

Bibliographical note

Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature (outside the USA).

NREL Publication Number

  • NREL/JA-5K00-70806


  • Ag-Cu-In
  • braze
  • chalcopyrite
  • Cu(In,Ga)Se2
  • photovoltaic
  • thermodynamic assessment


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