Phase behavior of the system He-N2 at high pressures

W. L. Vos*, L. C. van den Bergh, J. A. Schouten

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
27 Downloads (Pure)

Abstract

Recent investigation at our institute revealed that the solid-fluid-fluid three-phase line of the system helium-nitrogen shows two quadruple points in the pressure range up to 10 GPa. Since each quadruple point is connected with four three-phase lines, the phase diagram is very complicated. We have detected the phase transitions representing solid-solid-fluid equilibria. Moreover, two lines of constant composition have been determined as a function of temperature and pressure. These results are discussed together with the implications for the phase diagram of both He-N2 and pure nitrogen.

Original languageEnglish
Pages (from-to)15-25
Number of pages11
JournalInternational Journal of Thermophysics
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Jan 1989
Externally publishedYes

Keywords

  • binary mixtures
  • diamond anvil cell
  • helium
  • high pressure
  • nitrogen
  • phase equilibria

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