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Chinese Journal of High Pressure Physics  > 2010  >  24(3): 187-191 .
WANG Qing-Song, WANG Xiang, DAI Cheng-Da, BO Jin-Song, TAN Hua, HU Jian-Bo. Research on EOS at Extremely High Pressure Using a Three-stage Gas Gun Hypervelocity Launcher Techniques[J]. Chinese Journal of High Pressure Physics, 2010, 24(3): 187-191 . doi: 10.11858/gywlxb.2010.03.005
Citation: WANG Qing-Song, WANG Xiang, DAI Cheng-Da, BO Jin-Song, TAN Hua, HU Jian-Bo. Research on EOS at Extremely High Pressure Using a Three-stage Gas Gun Hypervelocity Launcher Techniques[J]. Chinese Journal of High Pressure Physics, 2010, 24(3): 187-191 . doi: 10.11858/gywlxb.2010.03.005
shu

Research on EOS at Extremely High Pressure Using a Three-stage Gas Gun Hypervelocity Launcher Techniques

doi: 10.11858/gywlxb.2010.03.005

  • National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China

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  • Corresponding author: WANG Qing-Song
  • Received Date: 16 Nov 2009
  • Rev Recd Date: 19 Jan 2010
  • Publish Date: 15 Jun 2010
    Abstract
  • A new material system for fabricating graded-density impactors was designed based on the standard design principle of graded wave-impedance materials and numerical simulation method for hypervelocity launching. The secondary Ta flyer-plate was accelerated over 9 km/s by a three-stage gun and used to study equation of state (EOS) of Ta at extremely high pressure. The particle velocity and shock velocity were measured simutaneously in EOS experiments. The obtained Hugoniot data were well consistent with the corresponding experimental data published previously. It shows that the three-stage gas gun hypervelocity launcher technique is suitable to research on EOS at extremely high pressure.

     

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