Atomic dynamics in the solidification process from the undercooled liquid state

• Project/Area Number: 19360346
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Metal making engineering
• Research Institution: Shibaura Institute of Technology
• Principal Investigator: MASAKI Tadahiko Shibaura Institute of Technology, 工学部, 准教授 (00360719)
• Co-Investigator(Kenkyū-buntansha): 石川 毅彦 宇宙航空研究開発機構, 宇宙科学研究本部, 准教授 (00371138)
• Co-Investigator(Renkei-kenkyūsha): ISHIKAWA Takehiko 宇宙航空研究開発機構, 宇宙科学研究所, 教授 (00371138) ; OKADA Jyunpei 宇宙航空研究開発機構, 宇宙科学研究所, 助教 (90373282)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000); Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2008: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2007: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
• Keywords: レビテーション / 原子ダイナミクス / 液体構造 / 高温融体 / 微小重力

Research Abstract

Undercooled liquid state of metals and semiconductors can be observed from those molten states. The novel materials, for example amorphous materials, can be processed from the undercooled liquid state. In this study, we observed undercooled liquid metals from the microscopic points of views by using the electrostatic levitator and high energy x-ray diffraction in the synchrotron radiation facility.

Research Products

• [Journal Article] Static and dynamics structure factor and the atomic dynamics of liquid Ge from first-principle molecular dynamics (2008)
  • Author(s): S. Munejiri, T. Masaki, T. Itami, F. Shimojo, K. Hoshino
  • Journal Title: Phys. Rev B77
  • Peer Reviewed
• [Journal Article] Structure and thermophysical properties of molten BaGe by using electrostatic levitation technique (2008)
  • Author(s): A. Ishikura, A. Mizuno, M. Watanabe, T. Masaki, T. Ishikawa, S. Yoda
  • Journal Title: Int. J. Thermophys 29 Pages: 2015-2024
  • Peer Reviewed
• [Journal Article] Static and dynamic structure and the atomic dynamics of liquid Ge from first-principles molecular-dynamics simulations (2008)
  • Author(s): S. Munejiri, T. Masaki, et. al.
  • Journal Title: Physical Review B 77
  • Peer Reviewed
• [Journal Article] Measurement of diffusion coefficient of Au in liquid Ag with the shear cell technique (2007)
  • Author(s): T. Masaki, T. Fukazawa, Y. Watanabe, M. Kaneko, S. Yoda, T. Itami
  • Journal Title: J. Non-Crystalline Solid 353 Pages: 3290-3294
  • Peer Reviewed
• [Journal Article] Thermophysical properties of the melts of AlPdMn icosahedral quasicrystal (2007)
  • Author(s): R. Ishikawa, T. Ishikawa, J. Okada, T. Masaki, Y. Watanabe, S. Nanao
  • Journal Title: Phil. Mag 87 Pages: 2965-2971
  • Peer Reviewed
• [Presentation] 静電浮遊法を用いたSi-Ge融体の物性計測 (2009)
  • Author(s): 石北泰之, 正木匡彦, 石川毅彦
  • Organizer: 日本マイクログラビティ応用学会
  • Place of Presentation: 那覇市産業支援センター
  • Year and Date: 2009-10-19
• [Presentation] 静電浮遊法を用いたGe-Si融体の熱物性計測 (2009)
  • Author(s): 石北泰之, 正木匡彦, 岡田純平, 石川毅彦
  • Organizer: 日本マイクログラビティ応用学会
• [Presentation] 過冷却液体シリコンの動的構造因子(その2) (2009)
  • Author(s): 正木匡彦, 岡田純平, 石川毅彦
  • Organizer: 日本物理学会秋季大会
• [Presentation] 過冷却液体シリコンの動的構造 (2008)
  • Author(s): 正木匡彦
  • Organizer: 日本物理学会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-23
• [Presentation] 静電浮遊法を用いた液体シリコンの構造解析 (2008)
  • Author(s): 畠中北斗, 正木匡彦, 岡田純平, 石川毅彦
  • Organizer: 日本マイクログラビティ応用学会
• [Book] High-temperature measurement of materials (2009)
  • Author(s): T. Masaki, A. Mizuno, M. Watanabe
  • Publisher: Springer
• [Book] High-Temperature Measurements of Materials (2008)
  • Author(s): T. Masaki
  • Publisher: Springer