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1990 Fiscal Year Final Research Report Summary

Study of the melting transition at the interface of ice crystal using an ellipsometry

Research Project

Project/Area Number 01580050
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 結晶学
Research InstitutionHokkaido University

Principal Investigator

FURUKAWA Yoshinori  Institute of Low Temperature Science, Hokkaido University, Associate Professor, 低温科学研究所, 助教授 (20113623)

Co-Investigator(Kenkyū-buntansha) YAMAMOAT Masaki  Research Institute for Scientific Mesurements, Tohoku university, Associate Prof, 科学計測研究所, 助教授 (00137887)
KURODA Toshio  Institute of Low Temperature Science, Hokkaido University, Professor, 低温科学研究所, 教授 (70080447)
Project Period (FY) 1989 – 1990
KeywordsQuasi-liquid layr / Surface melting / Grain boundary melting / Ellipsometry / Ice crystal / Grain boundary
Research Abstract

It is known that the crystal surface coverd with the quasi-liquid layr is more stable than the naked surface at temperatures just below the melting point. This phenomenon is a kind of first-order phase transition and specially called the surface me13EA\ : lting. On the other hand, the similar phenomena may occur at the interface between crystal and substrate or at the grain boundary of crystals. Though these phenomena have been studied theoretically and simulated by the morecular dynamics method and so on, any direct evidence by the experimental methods has not been reported. The purpose of this scientific research is to detect the melting transition at both the interface between ice crystal and glass substrate and at the grain boundary of ice13EA\ : crystals by the method of ellipsometry, and discuss the physical properties of the melting transition.
The results are summarized as follows,
1) The experimental method used in this research is an ellipsometry which is an optical method to m … More easure both the thickness and the optical constant of the thin layr at the interface. A new ellipsometer was constructed to measure the thickness and13EA\ : the refractive index of the transition layr at the ice-glass interface between. Total accuracy of the measurement is in 10A for the thickness and about 0.01 for the refractive index of transition layr.
2) A transition layr was detected at the ice-glass interface in the temperature reagion above-1゚C.The thickness of the transition layr steeply increased with increasing temperature and the refractive index of the layr was vely close to the refra13EA\ : ctive index of bulk water. This result means that the transition layr at the ice-glass interface should be quasi-liquid layr and the melting transition can occur at the this interface.
3) A new method of ellipsometry was developed to measure the thickness and the optical constant of the transition layr at the grain boundary of ice crystals. Used samples of ice crystals was prepared by a special method such as the ice by crystals was grown from the supercooled water using an artificial seed crystal.
4) Using the new ellipsometer, we were able to observe the transition layr at the grain boundary.
5) We discussed the physical properties of the melting transition of at the ice-glass interface and the grain boundary of ice crystals. This result will be published in the Journal of Crystal Growth in 1991. Less

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 石川郁男・古川義純: "偏光解析法による氷-ガラス界面の擬似液体層の研究" 日本結晶成長学会誌. 17. 72- (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 石川郁男・古川義純: "偏光解析法による氷・ガラス界面での融解転移の研究" 日本物理学会1990年秋の分科会講演予稿集. 2. 2- (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Furukawa,M.Yamamoto and T.Kuroda: "Ellipsometric study of the Quasi-Liquid Layer at the surface of ice crystal" in,Morphology and Growth Unit of Crystals ed.I.Sunagawa,Terra Sci.Pub.647-650 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Ishikawa and Y.Furukawa: "Ellipsometric study of the transition layer at the interface between ice and glass" International Symposium on Physics and Chemistry of Ice. to be presented. (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 古川義純: "氷の表面融解" 東大物性研短期研究会「表面融解とその物性」. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Furukawa,A.Kouchi,M.Yamamoto and T.Kuroda: "Experimental study of the surface melting on an ice crystal" 第9回結晶成長国際会議(仙台). 706- (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 古川義純: "氷の表面融解-偏光解析による検出-" 数理科学. 319. 34-39 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 後藤明・南桂一・本堂武夫・前晋爾・古川義純・香内晃・黒田登志雄・原田仁平: "複結晶X線回折法による氷の表面融解に関する研究" 日本物理学会1990年秋の分科会講演予稿集. 541- (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 後藤明・南桂一・本堂武夫・前晋爾・古川義純・香内晃・黒田登志雄・原田仁平: "複結晶X線回折法による氷の表面融解に関する研究 II" 日本物理学会1991年春の分科会講演予稿集. 552- (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 後藤明・南桂一・本堂武夫・前晋爾・古川義純・香内晃・黒田登志雄・原田仁平: "氷単結晶X線回折法による氷の表面融解に関する研究" 北海道大学強力X線装置研究報告集. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Furukawa and I.Ishikawa: "Ellipsometric study of the transition layer at the interface between ice and glass" J.Crystal Growth. to be published.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ishikawa, Ikuo: "Study of the Quasi-liquid layr at ice-glass interface by the ellipsometry" Journal of Japanese Association of Crystal Growth. Vol.17. 72 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ishikawa, Ikuo: "Study of metling transition at the ice-glass interface" Abstracts of the conference of Japan Physical Society. Vol.2. 2 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Furukawa, Yoshinori: "Ellipsometric study of the Quasi-Liquid Layr at the surface of ice crystal" in. Morphology and Growth Unit of Crystals ed. I.Sunagawa, Terra Sci.Pub.647-650 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ishikawa, Ikuo: "Ellipsometric study of the transition layr at the interface between ice and glass" International Symposium on Physics and Chemistry of Ice. to be presented. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Furukawa, Yoshinori: "Experimental study of the surface melting on an ice crystal" Abstracts of International Conference on Crystal Growth. 706. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Furukawa, Yoshinori: "Surface melting of ice crystal" Mathematical Sciences. Vol.319. 34-39 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Furukawa, Yoshinori: "Ellipsometric study of the transition layr at the interface between ice and glass" Journal of Crystal Growth. to be published.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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