In-situ observation of crystallization of amorphous ice by x-ray and neutron diffraction

• Project/Area Number: 25870182
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science; Petrology/Mineralogy/Economic geology
• Research Institution: The University of Tokyo
• Principal Investigator: Komatsu Kazuki 東京大学, 理学(系)研究科(研究院), 准教授 (50541942)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: アモルファス氷 / 高圧 / 結晶化 / 氷 / 多形 / アモルファス / 高圧力 / 中性子 / X線

Outline of Final Research Achievements

Salt is generally not incorporated into normal ice. Recent researches revealed, however, that high pressure form of ice can incorporate significant amount of salt into its structure. This salt-incorporated high pressure ice is derived from a specific method - crystallized from an amorphous ice. I conducted fundamental study for this crystallization from the amorphous ice; for instance, crystallization temperature and pressure for different salt composition, and structure determination for a newly found high pressure form of salt hydrate.

Research Products

• [Int'l Joint Research] P&M Curie Univ.(フランス)
• [Int'l Joint Research] ANSTO(オーストラリア)
• [Int'l Joint Research]
• [Journal Article] Zr-based bulk metallic glass as a cylinder material for high pressure apparatuses (2015)
  • Author(s): Komatsu, K., Munakata, K., Matsubayashi, K., Uwatoko, Y., Yokoyama, Y., Sugiyama, K. and Matsuda, M.
  • Journal Title: High Press. Res. Volume: 35 Issue: 3 Pages: 254-262
  • DOI: 10.1080/08957959.2015.1041939
  • Peer Reviewed
• [Journal Article] Crystal structure of magnesium dichloride decahydrate determined by X-ray and neutron diffraction under high pressure (2015)
  • Author(s): Komatsu, K., Shinozaki, A., Machida, S., Matsubayashi, T., Watanabe, M., Kagi, H., Sano-Furukawa, A. and Hattori, T.
  • Journal Title: Acta Crystallogr. B Volume: 71 Issue: 1 Pages: 74-80
  • DOI: 10.1107/s205252061500027x
  • Peer Reviewed
• [Journal Article] Design and Performance of High-Pressure PLANET Beamline at Pulsed Neutron Source at J-PARC (2015)
  • Author(s): Hattori, T., A. Sano-Furukawa, H. Arima, K. Komatsu, A. Yamada, Y. Inamura, T. Nakatani, Y. Seto, T. Nagai, W. Utsumi, T. Iitaka, H. Kagi, Y. Katayama, T. Inoue, T. Otomo, K. Suzuya, T. Kamiyama, M. Arai T. Yagi
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A Volume: 780 Pages: 55-67
  • DOI: 10.1016/j.nima.2015.01.059
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Performance of ceramic anvils for high pressure neutron scattering. (2014)
  • Author(s): K. Komatsu, S. Klotz, A. Shinozaki, R. Iizuka, L.E. Bove, and H. Kagi
  • Journal Title: High Pressure Research (Proceeding of EHPRG) Volume: 34 Issue: 4 Pages: 494-499
  • DOI: 10.1080/08957959.2014.986476
  • Peer Reviewed / Open Access
• [Journal Article] An improved method for calibrating time-of-flight Laue single-crystal neutron diffractometers. (2014)
  • Author(s): Bull CL, Johnson MW, Hamidov H, Komatsu K, Guthrie M, Gutmann MJ, Loveday JS, Nelmes RJ
  • Journal Title: Journal of Applied Crystallography Volume: 47 Issue: 3 Pages: 974-983
  • DOI: 10.1107/s1600576714006657
  • Peer Reviewed
• [Journal Article] Near-infrared spectra of H2O under high pressure and high temperature: Implications for a transition from proton tunneling to hopping states. (2014)
  • Author(s): Noguchi N, Komatsu K, Shinozaki A, Shinoda K, Kagi H.
  • Journal Title: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. Volume: 133 Pages: 509-513
  • Peer Reviewed
• [Journal Article] Phase transitions and hydrogen bonding in deuterated calcium hydroxide: High-pressure and high-temperature neutron diffraction measurements. (2014)
  • Author(s): R. Iizuka, K. Komatsu, H. Kagi, T. Nagai, A. Sano-Furukawa, T. Hattori, H. Gotou and T. Yagi
  • Journal Title: Journal of Solid State Chemistry Volume: 218 Pages: 95-102
  • DOI: 10.1016/j.jssc.2014.06.010
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] An improved method for calibrating time-of-flight Laue single-crystal neutron diffractometers (2014)
  • Author(s): C.L. Bull, M.W. Johnson, H. Hamidov, K. Komatsu, M. Guthrie, M.J. Gutmann, J.S. Loveday, R.J. Nelmes
  • Journal Title: Journal of Applied Crystallography Volume: in press
  • Peer Reviewed
• [Journal Article] Crystal structure of the high-pressure phase of calcium hydroxide, portlandite : In situ powder and single-crystal X-ray diffraction study (2013)
  • Author(s): R. lizuka T. Yagi, K. Komatsu, H. Gotou, T. Tsuchiya, K. Kusaba, H. Kagi
  • Journal Title: American Mineralogist Volume: 98 Issue: 8-9 Pages: 1421-1428
  • DOI: 10.2138/am.2013.4386
  • Peer Reviewed
• [Journal Article] Development of a new P-T controlling system for neutron scattering experiments (2013)
  • Author(s): K. Komatsu, M. Moriyama, T. Koizumi, K. Nakayama, H. Kagi, J. Abe, S. Harjo
  • Journal Title: High Pressure Research Volume: 33 Pages: 208-213
  • Peer Reviewed
• [Presentation] 氷XV相の構造と安定性の再評価 (2015)
  • Author(s): 小松一生，町田真一，則竹史哉，山根崚，佐野亜沙美，服部高典，鍵 裕之
  • Organizer: 第５６会高圧討論会
  • Place of Presentation: JMSアステールプラザ（広島県・広島市）
  • Year and Date: 2015-11-10
• [Presentation] 氷XV相の結晶構造の再検討 (2015)
  • Author(s): 小松一生，則竹史哉，山根崚，鍵裕之, 町田真一，佐野亜沙美，服部高典
  • Organizer: 日本鉱物科学会2015年年会
  • Place of Presentation: 東京大学（東京都・文京区）
  • Year and Date: 2015-09-25
• [Presentation] In-situ neutron diffraction study for ice XV - a revisit to its stability region (2015)
  • Author(s): Kazuki Komatsu, Shinichi Machida, Takanori Hattori, Asami Sano-Furukawa, Hiroyuki Kagi
  • Organizer: AOCNS 2015
  • Place of Presentation: Novotel Manly Pacific (Sydney, Australia)
  • Year and Date: 2015-07-23
  • Int'l Joint Research / Invited
• [Presentation] アモルファスを介した良質な粉末結晶の合成による結晶構造決定：高圧下で見出された新規塩化マグネシウム水和物の例 (2014)
  • Author(s): 小松一生、篠崎彩子、町田真一、松林拓人、渡辺真央、鍵裕之
  • Organizer: ２０１４年日本鉱物科学会年会
  • Place of Presentation: 熊本大学（熊本県、熊本市）
  • Year and Date: 2014-09-17 – 2014-09-19
• [Presentation] Performance of ceramic anvils for high pressure neutron scattering. (2014)
  • Author(s): Komatsu K, Klotz S, Shinozaki A, Iizuka R, Bove LE, Kagi H.
  • Organizer: 52nd EHPRG Meeting on High Pressure Science and Technology
  • Place of Presentation: リヨン大学（フランス、リヨン）
  • Year and Date: 2014-09-07 – 2014-09-12
• [Presentation] Development of P-T variable system and its application to the neutron diffraction study of ice VI under high pressure and low temperature (2013)
  • Author(s): K. Komatsu, K. Nakayama, T. Koizumi, H. Kagi
  • Organizer: ICNS2013 (International Conference on Neutron Scattering)
  • Place of Presentation: Edinburgh International Conference Centre, Edinburgh, UK
• [Remarks] Neutron @ Pressure wiki
  • URL: https://sites.google.com/site/attcorr4hpn/