New Polymorph of SiO_2 Formed under Quasi-Hydrostatic Compression of Cristobalite

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High pressure in situ x-ray observations of silica (cristobalite) clarified very large effect of non-hydrostaticity on the crystal structure of high pressure polymorph and the apparent compressibility. Under quasi-hydrostatic compression, cristobalite transformed to a new polymorph, which gives very similar diffraction profile to that of stishovite, while under strongly non-hydrostatic compression, a completely different phase named "X-I" was formed. Very different compression curves of cristobalite were observed, depending on the hydrostaticity of applied pressure, which is well explained using the elastic theory.

収録刊行物

  • 高圧力の科学と技術 = The Review of high pressure science and technology  

    高圧力の科学と技術 = The Review of high pressure science and technology 7, 107-109, 1998 

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002688963
  • NII書誌ID(NCID)
    AN10452913
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    0917639X
  • NDL 記事登録ID
    4493849
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z17-1589
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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