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
    Publication statusPublished - 1996

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    Keywords

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

    ASJC Scopus subject areas

    • Metals and Alloys

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