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Journal of Low Temperature Physics

, Volume 11, Issue 1–2, pp 33–52 | Cite as

Pressure-volume-temperature relations in liquid and solid4He

  • E. R. Grilly
Article

Abstract

PVT relations in liquid and solid4He near the melting curve were measured over 0.3–2.0 K with a cell that used diaphragms for pressure and volume variation. The results were largely self-consistent and were essentially in agreement with the most careful previous work. The high values and strong temperature dependence of thermal expansion in the bcc solid resembled that of a liquid, but there was no evidence to substantiate some previous indications of premelting anomalous heat-capacity behavior. The phase diagram was examined carefully, and under equilibrium conditions the measurements led to good correlations. However, it seems improbable thatPVT relations can be connected with heat-capacity data through a simple Grüneisen parameter γ.

Keywords

Phase Diagram Thermal Expansion Equilibrium Condition Magnetic Material Melting Curve 
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Copyright information

© Plenum Publishing Corporation 1973

Authors and Affiliations

  • E. R. Grilly
    • 1
  1. 1.Los Alamos Scientific LaboratoryUniversity of CaliforniaLos Alamos

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