AuCu-Sn pseudobinary phase diagram

Christian Noel C. Luciano, Koh ichi Udoh, Masaharu Nakagawa, Shigeki Matsuya, Michio Ohta

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A pseudobinary phase diagram was determined from powder X-ray diffraction (XRD) data derived from the addition of varying amounts of Sn to the AuCu alloy system. Prior to XRD studies, the alloy samples were initially solution-treated and quenched. They were then subjected to annealing at lower temperatures ranging from 200 to 450 °C for a duration of 20 000 min and then subsequently quenched in ice brine. The resulting phase diagram presented two significant results. First, it showed the existence of a AuCu III phase which was previously reported only in the Au-Cu-Ga ternary system. And second, it shows the existence of a AuCu III′ phase which Karlsen and co-workers designated as the 'B' phase in his early work concerning the Au-Cu-Sn alloy system.

Original languageEnglish
Pages (from-to)289-295
Number of pages7
JournalJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - May 2 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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