Thermodynamic modeling of the In-Pt-Sb system

Cuiping Guo, Changrong Li, Shunli Shang, Zhenmin Du

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The In-Pt-Sb system is modeled using the CALPHAD technique. The solution phases (liquid, fcc(Pt), rhom(Sb) and tetra(In)) are described as substitutional solution. The enthalpies of formation of the intermetallic compounds, Pt 7Sb, Pt3Sb, Pt3Sb3, PtSb, PtSb 2 are calculated using firstprinciples calculations. In the In-Pt-Sb system, the compounds In3Pt2, In2Pt, In 7Pt3 in the In-Pt binary system and the compounds PtSb2 and PtSb in the Pt-Sb binary system are treated as line compounds (In,Sb)mPtn according to experimental solid solubility of the third component. The compound In5Pt6 is treated as (In,Pt,Sb)5 (In,Pt)6 based on its thermodynamic model in the In-Pt system and experimental solid solubility of Sb in the In-Pt-Sb system. The thermodynamic model of compound InPt3 keeps the order- disorder transition model with fcc(Pt) solid solution which was used in the In-Pt binary system, and is treated as (In,Pt,Sb)0.25 (In,Pt,Sb)0.75 Other compounds InPt, In9Pt13, aIn2Pt3, bIn2Pt3, InPt2 and InSb in the In-Pt-Sb system keepthe same thermodynamic models as those in binary systems. Based on the published experimental isothermal sections, vertical sections and the liquidus surface projection, the In-Pt-Sb system is modeled, and a set of self-consistent thermodynamic parameters is obtained.

Original languageEnglish (US)
Pages (from-to)525-536
Number of pages12
JournalInternational Journal of Materials Research
Volume105
Issue number6
DOIs
StatePublished - Jan 1 2014

Fingerprint

Thermodynamics
thermodynamics
solubility
Solubility
Order disorder transitions
liquidus
Intermetallics
intermetallics
Enthalpy
Solid solutions
liquid phases
solid solutions
enthalpy
projection
disorders
Liquids

All Science Journal Classification (ASJC) codes

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

Cite this

Guo, Cuiping ; Li, Changrong ; Shang, Shunli ; Du, Zhenmin. / Thermodynamic modeling of the In-Pt-Sb system. In: International Journal of Materials Research. 2014 ; Vol. 105, No. 6. pp. 525-536.
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Thermodynamic modeling of the In-Pt-Sb system. / Guo, Cuiping; Li, Changrong; Shang, Shunli; Du, Zhenmin.

In: International Journal of Materials Research, Vol. 105, No. 6, 01.01.2014, p. 525-536.

Research output: Contribution to journalArticle

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