Free energy of mixing and vapour pressure of liquid Ga-As, In-As, Ga-P and In-P alloys

Katsunori Yamaguchi, Kimio Itagaki, Adolf Mikula

Research output: Contribution to journalArticle

Abstract

The change of the Gibbs energy of the reaction between group IIIA and VA elements to form a liquid III-V alloy was derived for the Ga-As, In-As, Ga-P and In-P systems by combining the heat content of the alloy with the heat and entropy of formation of the equiatomic compound at a reference temperature. The obtained data were analysed by using a Redlich-Kister polynomial equation and the optimized parameters were derived for a temperature range between 873 and 1523 K and a composition range between xv = 0 and 0.5 (for the Ga-P system between xp = 0 and 0.1). The partial pressures of these liquid alloys were expressed as a function of alloy composition and temperature. Partial pressure and total pressure-composition-temperature diagrams were constructed.

Original languageEnglish
Pages (from-to)279-285
Number of pages7
JournalZeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume89
Issue number4
Publication statusPublished - 1998 Apr
Externally publishedYes

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Vapor pressure
vapor pressure
Free energy
free energy
Liquids
liquids
Partial pressure
partial pressure
Chemical analysis
Temperature
liquid alloys
temperature
Gibbs free energy
Enthalpy
polynomials
Entropy
enthalpy
diagrams
Polynomials
entropy

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Free energy of mixing and vapour pressure of liquid Ga-As, In-As, Ga-P and In-P alloys. / Yamaguchi, Katsunori; Itagaki, Kimio; Mikula, Adolf.

In: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, Vol. 89, No. 4, 04.1998, p. 279-285.

Research output: Contribution to journalArticle

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