Acoustic Velocity Ratios in Solid Argon at 75 K up to Static Pressures of 150 Kbar

  • C. G. Homan
  • J. Frankel
  • D. P. Kendall
  • J. A. Barrett
  • T. E. Davidson


In the last decade, a considerable body of accurate high pressure thermodynamic data has been reported for solid argon [1].* Careful measurement of the equation of State (EOS) by piston displacement techniques to 20 kbar, first made by Stewart [2] and recently by Anderson and Swenson [3], agree within 3%. The latter data [3] has an estimated accuracy of ± 0.1% in the T = 0 equilibrium molar volume V, and the agreement with the lower pressure isochoric data of Lewis et al. [4] is within their combined experimental uncertainties. This high degree of agreement has led Anderson and Swenson to propose a Lennard-Jones type EOS for the temperature range up to the melting point. Their results suggest that argon obeys a reduced EOS at both T = 0 and near the triple point, which is similar to the EOS of the other rare gas solids, krypton and xenon.


Velocity Ratio Room Pressure Solid Argon Adiabatic Bulk Modulus Hydrostatic Deformation 
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Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • C. G. Homan
    • 1
  • J. Frankel
    • 1
  • D. P. Kendall
    • 1
  • J. A. Barrett
    • 1
  • T. E. Davidson
    • 1
  1. 1.US Army Benet Weapons LaboratoryWatervlietUSA

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