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Chinese Journal of High Pressure Physics  > 2003  >  17(1): 16-21 .
ZHANG Dai-Yu, LIU Fu-Sheng, LI Xi-Jun, JING Fu-Qian. Shock Temperatures of Porous Iron from MD Simulations[J]. Chinese Journal of High Pressure Physics, 2003, 17(1): 16-21 . doi: 10.11858/gywlxb.2003.01.003
Citation: ZHANG Dai-Yu, LIU Fu-Sheng, LI Xi-Jun, JING Fu-Qian. Shock Temperatures of Porous Iron from MD Simulations[J]. Chinese Journal of High Pressure Physics, 2003, 17(1): 16-21 . doi: 10.11858/gywlxb.2003.01.003
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Shock Temperatures of Porous Iron from MD Simulations

doi: 10.11858/gywlxb.2003.01.003
  • 1.

    Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China;

  • 2.

    Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China

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  • Corresponding author: ZHANG Dai-Yu1
  • Received Date: 05 Aug 2002
  • Rev Recd Date: 17 Oct 2002
  • Publish Date: 05 Mar 2003
    Abstract
  • According to the assumption that porous iron sample has transformed to homogeneous medium under a given shock pressure, a Morse-type potential is used to simulate Hugoniot curve and shock temperatures of porous iron by MD method. The Morse potential has three adjustable parameters, which are determined from experimental data of iron's thermo-elastic properties by Matsui and Anderson. The simulation results are in good agreement with thermodynamic data for porous iron with a porosity of 12.1%, which implies that porous sample of a given porosity has a thermodynamic equilibrium temperature under a given shock pressure. However, whether the conclusion could be applicable to porous samples with larger porosities needs to be further verified by experiments.

     

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    • References(19)
  • Wang Y, Ahuja R, Johansson B. Melting of Iron and Other Metals at Earth's Core Conditions: A Simplified Computational Approach [J]. Phys Rev B, 2002, 65: 014104.
    Jing F Q. Introduction to Experimental Equation of State(2nd) [M]. Beijing: Science Press, 1999. (in Chinese)
    经福谦. 实验物态方程导引(第二版) [M]. 北京: 科学出版社, 1999.
    Anderson O L, Dubrovinsky L, Saxena S K, et al. Correction to Experimental Vibrational Grneisen Ratio Values for -Iron up to 330 GPa at 300 K [J]. Phys Res Lett, 2001, 28(12): 2359.
    Marsh S P. LASL Hugoniot Data [M]. Berkeley: University of California Press, 1980.
    Li X J, Zhou X M , Wang F H, et al. Restudy of Grneisen Parameter of Iron in the Pressure Range of 90~160 GPa [J]. Chin Phys Lett, 2001, 18(1): 85-87.
    Li X J. Study on Iron's High Pressure Melting [D]. Mianyang: China Academy of Engineering Physics, 2000. (in Chinese) 李西军. 铁高压熔化线研究 [D]. 四川绵阳: 中国工程物理研究院, 2000.
    Wu Q, Jing F Q. Thermodynamic Equation of State and Application to Hugoniot Predictions for Porous Materials [J]. J Appl Phys, 1996, 80(8): 4343-4349.
    Matsui M, Anderson O L. The Case for a Body-Centered Cubic Phase for Iron at Inner Core Conditions [J]. Phys Earth Planet Inter, 1997, 103: 55-62.
    Belonoshko A B, Ahuja R. Embedded-Atom Molecular Dynamic Study of Iron Melting [J]. Phys Earth Planet Inter, 1997, 102: 171-184.
    Durran D R. The Third-Order Adams-Bashforth Method: An Attractive Alternative to Leapfrog Time Differencing [J]. Mon Wea Rev, 1991, 119: 702-720.
    Shuichi Nos. A Unified Formulation of the Constant Temperature Molecular Dynamics Methods [J]. J Chem Phys, 1984, 81(1): 511-519.
    Williams Q, Jeanloz R, Bass J, et al. Science, 1987, 236: 181.
    Yoo C S, Holmes N C, Ross M. Shock Temperatures and Melting of Iron at Earth Core Conditions [J]. Phys Rev Lett, 1993, 70(25): 3931-3934.
    Brown J M, McQueen R G. Phase Transitions, Grneisen Parameter, and Elasticity for Shocked Iron between 77 GPa and 400 GPa [J]. J Geophys Res, 1986, 91(B7): 7485.
    Li X J, Zhou X M, Wang F H, et al. Shock Compression of a Kind of Porous Iron [J]. Chinese Journal of High Pressure Physics, 2000, 14(3): 224-228. (in Chinese)
    李西军, 周显明, 王藩侯, 等. 一种多孔铁的冲击压缩性 [J]. 高压物理学报, 2000, 14(3): 224-228.
    Li X J, Gong Z Z, Liu F S, et al. A Problem in Measurements of High Pressure Melting Curve of Iron: Influence of Melting Mechanism on the Melting Temperature [J]. Chinese Journal of High Pressure Physics, 2001, 15(3): 221-225. (in Chinese)
    李西军, 龚自正, 刘福生, 等. 铁高压熔化线的测量--熔化机理的影响 [J]. 高压物理学报, 2001, 15(3): 221-225.
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