Thermodynamic assessment of the Sb-Te system

Gautam Ghosh*, Hans Leo Lukas, Luc Delaey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

An optimized set of thermodynamic functions for the Sb-Te system has been obtained, partly by the computer operated least squares method and partly by trial and error. The liquid Sb-Te alloys have been analyzed in terms of the two-sublattice model for partially ionized liquids after M. Hillert using five adjustable parameters. The intermediate phase Sb2Te3 is described by the Wagner-Schottky model, assuming antistructure atoms on both sublattices. Two other intermediate phases, γ and δ, which have extended ranges of homogeneity, are modelled with two sublattices after the formula Sb2(Te, Sb)3. The Sb solid solution is treated as regular solution, whereas Te is treated as a stoichiometric phase. The calculated phase diagram as well as the calculated enthalpy of mixing of the liquid agree well with experimental values from the literature.

Original languageEnglish (US)
Pages (from-to)731-736
Number of pages6
JournalZeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume80
Issue number10
StatePublished - Oct 1 1989

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Thermodynamic assessment of the Sb-Te system'. Together they form a unique fingerprint.

Cite this