Vanadium activity measurement in fcc phase Pt-V alloy

Dong Hwi Park, Ji Seok Jeong, Sang Chul Shim, Joonho Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The temperature dependence of the thermodynamic properties of V, in Pt-V alloy, was investigated in this study. A Pt strip was equilibrated with V2O3 powder, under controlled oxygen partial pressure and temperature. The mole fraction of V in the sample was measured with an electron probe micro-analyzer, and the activity coefficient of V was determined as a function of temperature and composition. With increasing temperature, the activity coefficient of V (γV) increased. The activity coefficient at infinite dilution (γVo) increased and the interaction parameter (εVV) decreased with rising temperature. The excess Gibbs energy value for the fcc phase Pt-V alloy was strongly negative.

Original languageEnglish
Pages (from-to)967-971
Number of pages5
JournalJournal of Alloys and Compounds
Publication statusPublished - 2019 Jun 5

Bibliographical note

Funding Information:
This work was supported by the Technology Innovation Program (Grant No. 10063488 ), and by a Korea Institute for Advancement of Technology grant, funded by the Korea Government ( MOTIE ) ( P0002019 ), as part of the Competency Development Program for Industry Specialists.

Publisher Copyright:
© 2019 Elsevier B.V.


  • Activity coefficient
  • Excess Gibbs energy
  • Pt-V alloy
  • Thermodynamics

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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