Volume 23 Issue 3
Apr 2015
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JIN Ke, WU Qiang, LI Xin-Zhu, CAI Ling-Cang, JING Fu-Qian. Isothermal Equations of State of Au and Pt at Room Temperature: Implication for Pressure Scales[J]. Chinese Journal of High Pressure Physics, 2009, 23(3): 181-188 . doi: 10.11858/gywlxb.2009.03.004
Citation: JIN Ke, WU Qiang, LI Xin-Zhu, CAI Ling-Cang, JING Fu-Qian. Isothermal Equations of State of Au and Pt at Room Temperature: Implication for Pressure Scales[J]. Chinese Journal of High Pressure Physics, 2009, 23(3): 181-188 . doi: 10.11858/gywlxb.2009.03.004

Isothermal Equations of State of Au and Pt at Room Temperature: Implication for Pressure Scales

doi: 10.11858/gywlxb.2009.03.004
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  • Corresponding author: JIN Ke
  • Received Date: 02 Jul 2008
  • Rev Recd Date: 21 Oct 2008
  • Publish Date: 15 Jun 2009
  • Isothermal equations of state at room temperature of Au, Pt were investigated to the relative volume change of 0.5~0.6. The isothermal bulk modulus B0 K, its first pressure derivative B0 K, and the specific volume v0 K at zero pressure and temperature were derived directly from the experimental shock wave data with a simple method, independent of any assumption on the behavior of Grneisen parameter at high pressures and temperatures. Based on the derived parameters, the isothermal equations of state for the four pressure standard materials were calculated, which show excellent agreements with the available quasi hydrostatic measurements in diamond-anvil-cell experiment. Comparison of the calculated results with the previous theoretical investigations was also performed. The crosscheck on independent data and the excellent agreements with experimental data confirm that the present isothermal equations of state for Au and Pt can be used as high-pressure scales for future static DAC experiments.

     

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