Bi Phase Transitions below 80°K to 150 Kbars in an Ar Pressure Medium

  • Clarke G. Homan
  • Julius Frankel
  • David P. Kendall


Resistometric measurements on thin film Bi specimens embedded in a solid Ar pressure medium were made to 150 kbars in the temperature range of 40° to S0°K. The ratio of longitudinal to transverse acoustic velocity was simultaneously measured on the Ar medium and the EOS of Ar deduced. Correlation is made between the changes in the resistance due to polymorphic phase transitions in Bi and the pressure deduced from the Ar EOS, The present data will be compared with earlier results on Bi embedded in a pyrophyllite medium which suggests large non-hydrostatic medium effects in pyrophyllite at low temperatures. Experimental details will be discussed.


Velocity Ratio Acoustic Velocity Pressure Scale Polymorphic Phase Transition High Pressure Measurement 
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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Clarke G. Homan
    • 1
  • Julius Frankel
    • 1
  • David P. Kendall
    • 1
  1. 1.Watervliet ArsenalWatervlietUSA

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