内部抵抗加熱式ダイヤモンドアンビルセルを用いた鉄融点の決定  [in Japanese] Melting Temperature of Iron Determined in an Internal-Resistance-Heated Diamond-Anvil Cell  [in Japanese]

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Author(s)

    • 新名 良介 SINMYO Ryosuke
    • 東京工業大学 地球生命研究所|東京大学理学系研究科 地球惑星科学専攻|[現所属] 明治大学理工学部 物理学科 Earth-Life Science Institute, Tokyo Institute of Technology|Department of Earth and Planetary Science, The University of Tokyo|Department of Physics, Meiji University
    • 廣瀬 敬 HIROSE Kei
    • 東京工業大学 地球生命研究所|東京大学理学系研究科 地球惑星科学専攻 Earth-Life Science Institute, Tokyo Institute of Technology|Department of Earth and Planetary Science, The University of Tokyo

Abstract

<p>The Earth's core is mainly composed of iron. Since liquid outer core coexists with solid at the inner core boundary (ICB), the melting temperature of iron provides a key constraint on the temperature of the core. In this article, we will introduce our recent progress on the experimental approach to determine the melting temperature of iron at high-pressure by using internal-resistance-heated diamond-anvil cell. We determined the melting temperature of pure iron up to 290 GPa, for the first time above 200 GPa by static compression experiments. A small extrapolation of the present experimental results yields a melting point of 5,500±220 K at the ICB.</p>

Journal

  • The Review of High Pressure Science and Technology

    The Review of High Pressure Science and Technology 29(2), 113-120, 2019

    The Japan Society of High Pressure Science and Technology

Codes

  • NII Article ID (NAID)
    130007680178
  • NII NACSIS-CAT ID (NCID)
    AN10452913
  • Text Lang
    JPN
  • ISSN
    0917-639X
  • NDL Article ID
    029912756
  • NDL Call No.
    Z17-1589
  • Data Source
    NDL  J-STAGE 
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