Phase Transition of TiSi_2 under Interfacial Stresses

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We present phase diagram of materials (Silicon, Carbon, and Titanium disilicide TiSi<SUB>2</SUB>) obtained by the first principles and semi-empirical free-energy calculations. Phase boundary of the two solid phases of TiSi<SUB>2</SUB> was found to sensitively depend on the pressure, which explains the suppressed phase transition in the thin films where the interfacial stress is large. The Clapeyron slope of the graphite-liquid phase boundary was found to rather suddenly decrease at about 1 GPa because of the change in the liquid structure. The structural change is continuous, but becomes first-order like only at lower temperature range where the liquid is metastable.

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, 181-186, 1998

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002689303
  • 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
    4493874
  • 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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