Solidification of undercooled Cu, Cu-O and Cu-S alloys

Makoto Yoshida, Toshinori Muramatsu, Jia Fu Hong, Hideo Nakae

Research output: Contribution to journalArticle

Abstract

Undercooling and solidification phenomena of Cu and Cu-O and Cu-S alloys were investigated. The "one-way nucleation" of Cu/Cu2S eutectic was also examined. The undercooling of Cu-O and Cu-S alloys increased with increasing oxygen or sulfur content. This may be caused by oxidation or sulfurizing of effective nucleants in molten copper, or by the surfactant roll of oxygen and sulfur. Regarding the "one-way nucleation", the Cu phase nucleates the Cu2S phase at small undercooling, but the Cu2S phase does not nucleate Cu.

Original languageEnglish
Pages (from-to)1095-1100
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume60
Issue number11
DOIs
Publication statusPublished - 1996 Jan 1

Keywords

  • Copper
  • Copper-oxygen alloy
  • Copper-sulfur alloy
  • Nucleation
  • Solidification
  • Supercooling
  • Undercooling

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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