雪結晶の成長機構および晶癖変化(<特集>結晶のモルフォロジー)  [in Japanese] Growth Mechanism of Ice from Vapour Phase and its Growth Forms(<Special Issue>Morphology of Crystals)  [in Japanese]

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Author(s)

Abstract

The new interpretation on habits ofice growing from vapour is proposed. The primary habits of ice alternate three times (plates→ - 4℃→ columns → -10℃ → plates→from -20℃ to -35℃ → columns) with decreasing temperature. The theory is based on a viewpoint that the surface of ice just below 0℃ is covered with a quasi liquid layer, whose depth or coverage 〓 decreases with falling temperature, and therefore the growth mechanism of a surface changes also as followings : i) Vapour-Quasi Liquid-Solid-Mechanism (〓>1) , ii) Adhesive Growth on a surface strongly adsorbed by water molecules (0.01<〓<1) and iii) Two Dimensional Nucleation Growth on a singular surface (〓<0.01) . As the change in surface structure as well as growth mechanism depend on surface orientation, the complicated habits change is caused mainly by the combination of growth mechanism of each surface, i.e. {0001} and {101^^-0 }. The first and second transition temperature are expected to be independent on absolute supersaturation Δp as same as experiments. On the other hand the third one is the temperature where the two dimensional nucleation growth of {0001} surface reaches the one of { 101^^-0}, so that it falls with decreasing Δp. The observed marked columnar crystals can be explained only by {0001} account of spherical volume diffusion field near taking surfaces and cylindrical one near {1010} surfaces. For plate like crystals between - 10℃ and -20℃ to -35℃ the surface diffusion from {0001} to {101^^-0} and volume diffusion with cylindrical symmetry near {101^^-0} surfaces are very important.

Journal

  • Journal of the Japanese Association for Crystal Growth

    Journal of the Japanese Association for Crystal Growth 6(3-4), 51-64, 1979

    The Japanese Association for Crystal Growth

Codes

  • NII Article ID (NAID)
    110002771506
  • NII NACSIS-CAT ID (NCID)
    AN00188386
  • Text Lang
    JPN
  • ISSN
    0385-6275
  • NDL Article ID
    2163964
  • NDL Source Classification
    ME25(気象--大気現象)
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-339
  • Data Source
    NDL  NII-ELS  J-STAGE 
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