Thermodynamic properties of aluminum, magnesium, and calcium in molten silicon

Takahiro Miki, Kazuki Morita, Nobuo Sano

研究成果: Article査読

53 被引用数 (Scopus)

抄録

The thermodynamic properties of aluminum, magnesium, and calcium in molten silicon were investigated using a chemical equilibration technique at 1723 to 1848 K, 1698 to 1798 K, and 1723 to 1823 K, respectively. The activity coefficient of aluminum in molten silicon was determined by equilibrating molten silicon-aluminum alloys with solid Al2O3 and Al6Si2O13, that of magnesium was determined by equilibrating molten silicon-magnesium alloys and MgO-SiO2-Al2O3 melts doubly saturated with MgSiO3 and SiO2, and that of calcium was determined by equilibrating molten siliconcalcium alloys with SiO2-saturated CaO-SiO2 melts. The activity coefficients at infinite dilution relative to the pure liquid state were determined as follows log γAl(I)in Sio =-1570/T + 0-236 (1723 to 1848 K) log γMg(I)in Sio = - 4900/T + 1.96 (1698 to 1798 K) log γCa(I)in Sio = -7670/T + 1.53 (1723 to 1823 K).

本文言語English
ページ(範囲)1043-1049
ページ数7
ジャーナルMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
29
5
DOI
出版ステータスPublished - 1998
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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