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Effective Viscosity of Liquid Helium Isotope Mixtures

  • D. S. Betts
  • D. F. Brewer
  • R. Lucking

Abstract

Recently results were reported’ from this laboratory on the effective viscosity of dilute mixtures (X3 < 10%) between 20 m°K and 1°K. In the present work we have extended the ranges of concentration up to X3 = 100% and of temperature up to 2°K so that all accessible areas of the phase diagram have now been investigated. Only in the region of the tricritical point (X 3 = 67%; T = 0.87°K) have serious difficulties been encountered, and further work there will be necessary to improve the technique.

Keywords

Effective Viscosity Tricritical Point Accessible Area Logarithmic Decrement Filling Capillary 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • D. S. Betts
    • 1
  • D. F. Brewer
    • 1
  • R. Lucking
    • 1
  1. 1.School of Mathematical and Physical SciencesUniversity of SussexBrightonUK

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