純銅,銅/酸素,銅/硫黄系合金の過冷凝固現象

書誌事項

タイトル別名
  • Solidification of Undercooled Cu, Cu-O and Cu-S Alloys
  • ジュン ドウ ドウ サンソ ドウ イオウケイ ゴウキン ノ カレイ ギョウコ

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説明

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.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 60 (11), 1095-1100, 1996

    公益社団法人 日本金属学会

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