Thermodynamic Consideration of Melting of Copper Based Alloys with Rare-Earth: I. The Cu-La System.

• HORIGUCHI Motohiro

  Graduate Student of Kansai University, Yamate–cho, Suita–shi 564–8680

• ICHII Kazuo

  Faculty of Engineering, Kansai University

• OISHI Toshio

  Faculty of Engineering, Kansai University

Bibliographic Information

Other Title

• 銅‐希土類合金の溶製に関する熱力学的研究　Ｉ．　Ｃｕ‐Ｌａ系
• 銅-希土類合金の溶製に関する熱力学的研究(1)Cu-La系
• ドウ キドルイ ゴウキン ノ ヨウセイ ニ カンスル ネツリキガクテキ ケンキ

Abstract

Thermodynamic consideration of melting of copper based alloys with lanthanum in graphite crucible was carried out at 1,623 ∼ 1,873 K. Solubilities of lanthanum and carbon in liquid copper in the presence of C-LaC2 were determined： Lanthanum solubility in liquid copper under C-LaC2 equilibrium log(CLa/mass %) = 0.476 + 2.17 × 10-4 T (1,623 ∼ 1,873 K) Carbon solubility in liquid copper under C-LaC2 equilibrium log(CC/mass ppm) = 5.14 - 5.80 × 103/T (1,623 ∼ 1,823 K) Based on the result of lanthanum solubility, activity coefficient of lanthanum in liquid copper was calculated： logγLa = -0.306 - 2.25 × 10-4 T - 3.10 × 103/T (1,623 ∼ 1,873 K)

Journal

• Shigen-to-Sozai

  Shigen-to-Sozai 114 (4), 258-262, 1998

  The Mining and Materials Processing Institute of Japan

Keywords

• Cu-La Alloy
• Solubility
• Activity Coefficient
• Lanthanum
• Carbon
• C-LaC2 Equilibrium

Details

• CRID: 1390001206015079552
• NII Article ID: 10002467478
• NII Article ID: 30021597681
• NII Book ID: AN10062646
• DOI: 10.2473/shigentosozai.114.258
• COI: 1:CAS:528:DyaK1cXjtlGrtbo%3D
• ISSN: 18806244
• ISSN: 09161740
• NDL BIB ID: 4470696
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4470696
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed