Thermodynamic Properties of Eutectic Silumins Doped by Transition Metals

The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x ≤ 0.035 and 0 < x ≤ 0.027 a...

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Published inZeitschrift für Naturforschung. A, A journal of physical sciences Vol. 59; no. 4; pp. 288 - 290
Main Authors Kanibolotsky, D. S., Stukalo, V. A., Lisnyak, V. V.
Format Journal Article
LanguageEnglish
Published Verlag der Zeitschrift für Naturforschung 01.05.2004
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Abstract The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x ≤ 0.035 and 0 < x ≤ 0.027 are characterized by positive deviations from ideality for aluminium. However, the deviations become negative at increasing of the Tr concentration. However, molten silumins doped by Ti and Cu show negative deviations from Raoult’s law for aluminium at the studied concentrations. Thermodynamic activity of Al in the silumins decreases in the sequence of Fe→Ni→Cu→Ti for the dopants.
AbstractList The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x ≤ 0.035 and 0 < x ≤ 0.027 are characterized by positive deviations from ideality for aluminium. However, the deviations become negative at increasing of the Tr concentration. However, molten silumins doped by Ti and Cu show negative deviations from Raoult’s law for aluminium at the studied concentrations. Thermodynamic activity of Al in the silumins decreases in the sequence of Fe→Ni→Cu→Ti for the dopants.
The thermodynamic properties of the liquid silumins (Al 0.879 Si 0.121 ) 1−x Tr x , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x Fe ≤ 0.035 and 0 < x Ni ≤ 0.027 are characterized by positive deviations from ideality for aluminium. However, the deviations become negative at increasing of the Tr concentration. However, molten silumins doped by Ti and Cu show negative deviations from Raoult’s law for aluminium at the studied concentrations. Thermodynamic activity of Al in the silumins decreases in the sequence of Fe→Ni→Cu→Ti for the dopants.
Author Lisnyak, V. V.
Stukalo, V. A.
Kanibolotsky, D. S.
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Snippet The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040...
The thermodynamic properties of the liquid silumins (Al 0.879 Si 0.121 ) 1−x Tr x , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive...
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StartPage 288
SubjectTerms Al-Si-(Cu
Electromotive Force Method
Gibbs Energy
Liquid Alloys
Silumins
Thermodynamic Activity
Ti
Title Thermodynamic Properties of Eutectic Silumins Doped by Transition Metals
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