The structure of Fe‐Ni alloy in Earth's inner core

DOI DOI HANDLE Web Site Web Site ほか2件をすべて表示 一部だけ表示 被引用文献40件 参考文献76件

書誌事項

公開日
2012-06-26
資源種別
journal article
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2012gl052103
  • 10.1016/j.epsl.2015.02.008
公開者
American Geophysical Union (AGU)

この論文をさがす

説明

<jats:p>The crystal structure of Fe‐10%Ni was investigated up to 340 GPa and 4700 K, corresponding to the Earth's inner core conditions by synchrotron X‐ray diffraction measurements<jats:italic>in</jats:italic>‐<jats:italic>situ</jats:italic>at ultrahigh pressure and temperature in a laser‐heated diamond‐anvil cell. The results show that hexagonal closed‐packed (hcp) structure is stable throughout the experimental conditions investigated with no evidence for a phase transition to body‐centered cubic (bcc) or face‐centered cubic (fcc) phases. The axial<jats:italic>c</jats:italic>/<jats:italic>a</jats:italic> ratio of the hcp crystal obtained around 330 GPa has a small temperature dependence similar to the axial ratio of pure Fe. Iron alloy with less than 10% Ni crystallizes to an hcp structure with <jats:italic>c</jats:italic>/<jats:italic>a</jats:italic> ratio of ∼1.61 at inner core conditions, although the effect of small amount of light elements remains to be examined by experiments.</jats:p>

収録刊行物

被引用文献 (40)*注記

もっと見る

参考文献 (76)*注記

もっと見る

関連プロジェクト

もっと見る

問題の指摘

ページトップへ