Interface phenomena in the Y2O3/(Al-Cu) system

S. Barzilai, M. Aizenshtein, N. Froumin, N. Frage

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Wetting behavior and the interface reaction in the Y2 O3/(Cu - Al) system were investigated at 1423 K. A contact angle of about 130° was measured in the Y2O3/ Cu system. Aluminum addition to copper improves wetting and the transition from non-wetting to wetting (θ ≤ 90°) was observed for the alloy with 50 at.% Al. The microstructure examination of the interface indicates that Al reacts with yttria, yttrium dissolves in the melt and a crater of AlYO3 is formed at the substrate. The interface interaction in the Y2O3/(Cu-Al) system is in a good agreement with the results of a thermodynamic analysis in the Y-Al-Cu-O system. The crater depth and the macroscopic final contact angles are correlated with the Y and Al activities in the melt.

Original languageEnglish
Pages (from-to)291-295
Number of pages5
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume420
Issue number1-2
DOIs
StatePublished - 25 Mar 2006

Keywords

  • Aluminum
  • Copper
  • Thermodynamic
  • Wetting
  • Yttrium oxide

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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