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氷の塑性異方性と転位 : 立方晶Ic 構造がもたらす六方晶Ih の特異な物性

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Title: 氷の塑性異方性と転位 : 立方晶Ic 構造がもたらす六方晶Ih の特異な物性
Other Titles: Anisotropy of ice plasticity and dislocations in ice : anomalous properties of hexagonal ice Ih associated with cubic structure Ic
Authors: 本堂, 武夫1 Browse this author
Authors(alt): Hondoh, Takeo1
Issue Date: 22-Mar-2006
Publisher: 北海道大学低温科学研究所
Journal Title: 低温科学
Journal Title(alt): Low temperature science
Volume: 64
Start Page: 141
End Page: 156
Abstract: The plasticity of ice, which demonstrates the strongest anisotropy among the various properties of ice, is reviewed in terms of the characteristic nature of dislocations in ice. Ice is deformed as if all possible sliding systems except for basal sliding are forbidden; like a deck of cards in which the surface is parallel to a basal plane. This peculiar nature of ice plasticity is explained by the characteristic structures of dislocations in ice, or by the fact that it originates with cubic structure Ic embedded in hexagonal ice Ih. The dislocation in ice extends over the basal plane because there is a very small energy difference between Ih and Ic that restricts its movement on the basal plane. Even though only the basal system is active in ice plasticity, it is apparent in the text that non-basal systems are also important in the deformation mechanism.
Description: 2章 水系物質の物性研究フロンティア
Type: bulletin (article)
Appears in Collections:低温科学 = Low Temperature Science > 第64巻

Submitter: 本堂 武夫

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