Quasiperiodic grain boundaries and intergranular slip in crystalline and quasinanocrystalline solids

被引：0
作者：
I. A. Ovid’ko
机构：
[1] Russian Academy of Sciences,Institute of Problems in Machine Construction
来源：
Physics of the Solid State | 1997年 / 39卷
关键词：
Spectroscopy; State Physics; Relative Displacement; Nanostructured Material; Theoretical Description;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The interrelationship between the geometrical and plastic characteristics of quasiperiodic grain boundaries in crystals is investigated. The method of density waves is used to obtain a theoretical description of the translational and phason (associated with relative displacements of adjacent crystal grains) degrees of freedom of a quasiperiodic boundary. The role of quasiperiodic grain boundaries in intergranular slip processes is analyzed. Quasinanocrystalline solids (nanostructured polycrystals with quasiperiodic grain boundaries) are defined as a new type of nanostructured materials with deformation characteristics attributable to the plastic properties of the quasiperiodic grain boundaries.
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页码：268 / 273
页数：5
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