Volume 15 Issue 3
May. 2015
Turn off MathJax
Article Contents
LI Xi-Jun, GONG Zi-Zheng, LIU Fu-Sheng, CAI Ling-Cang, JING Fu-Qian. 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 . doi: 10.11858/gywlxb.2001.03.009
Citation: LI Xi-Jun, GONG Zi-Zheng, LIU Fu-Sheng, CAI Ling-Cang, JING Fu-Qian. 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 . doi: 10.11858/gywlxb.2001.03.009

A Problem in Measurements of High Pressure Melting Curve of Iron: Influence of Melting Mechanism on the Melting Temperature

doi: 10.11858/gywlxb.2001.03.009
More Information
  • Corresponding author: LI Xi-Jun
  • Received Date: 04 Dec 2000
  • Rev Recd Date: 22 Feb 2001
  • Publish Date: 05 Sep 2001
  • High pressure melting curve of iron is crucial in modeling the earth's core. But a system deviation exists between the experimental data of static high-pressure experiments and those of the shock wave experiments. With the help of detailed analysis of possible melting mechanism in the two kinds of experiments, we correct the melting data directly from the experimental results and get a self-consistent high pressure melting curve of iron. This melting curve indicates the melting temperature of iron at the core/mantle boundary is about 3 850 K, and 6 000 K at the inner/out core boundary. This result is also consistent with the recommended value by Anderson.

     

  • loading
  • Jephcaot A P, Ohson P. Is the Inner Core of the Earth Pure Iron? [J]. Nature, 1987, 325: 332.
    Jacobs J A. The Earth's Core (2nd ed) [M]. New York: Academic Press, 1987.
    Williams Q, Jeanloz R. The Melting Curve of Iron to 250 GPa: A Constraint on the Temperature at Earth's Center [J]. Science, 1987, 236: 181.
    Anderson O L, Duba A. Experimental Melting Curve of Iron Revisited [J]. J Geophys Res, 1997, 102: 22695.
    Jephcoat A P, Besedin S P. Temperature Measurement and Melting Determination [J]. Phil Trans R Soc Lond A, 1996, 354: 1336.
    经福谦. 实验物态方程导引(第二版) [M]. 北京: 科学出版社, 1999.
    Tan H, Ahrens T J. Shock Temperature Measurements for Metals [J]. High Press Res, 1990, 2: 149.
    谭华. 金属冲击温度测量(H) [J]. 髙压物理学报, 1996, 10(3): 161.
    Lowen H. Melting, Freezing and Colloidal Suspension [J]. Phys Rep, 1994, 237: 249.
    Lu K, Li Y. Homogeneous Nucleation Catastrophe as a Kinetic Stability Limit for Superheated Crystals [J]. Phys Rev Lett, 1998, 80: 4470.
    Jin Z H, Sheng H W, Lu K. Melting of Pb Cluster without Free Surfaces [J]. Phys Rev B, 1999, 60: 141.
    Brown J M, McQueen R G. Phase Transition, Gruneisen Parameter, and Elasticity for Shocked Iron between 77 GPa and 400 GPa [J]. J Geophys Res, 1986, 91: 7485.
    Ahrens T J, Tan Hua, Bass J D. Analysis of Shock Temperature Data for Iron [J]. High Press Res, 1990, 2: 160.
    古成钢. 冲击波后物质界面的热弛豫及铁的冲击温度、熔化温度与熔化规律的研究 [D]. 成都: 成都科技大学, 1991.
    汤文辉. 金属冲击温度测量 [D]. 长沙: 国防科技大学, 1995.
    Chen G Q, Ahrens T J. High-Pressure Melting of Iron: New Experiments and Calculations [J]. Phil Trans R Soc Lond A, 1996, 354: 1251.
    Anderson O L. The Gruneisen Parameter for Iron at the Outer Core Conditions and the Resulting Conductive Heat and Power in the Core [J]. Phys Earth Planet Interiors, 1998, 109: 179.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(7770) PDF downloads(805) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return