Low-energy disclination structures at grain boundaries in polycrystalline and nanocrystalline solids

被引：10

作者：

Gutkin, MY

Mikaelyan, KN

Ovid'ko, IA

机构：

[1] Inst. of Machine Science Problems, Russian Academy of Sciences, 199 178 St. Petersburg

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 1996年 / 153卷 / 02期

关键词：

D O I：

10.1002/pssa.2211530207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Peculiarities of the splitting of grain boundary disclinations in polycrystalline and nanocrystalline solids are examined theoretically. The three basic variants of such a splitting (planar splitting, threefold star splitting, circle splitting) are considered with special attention to calculations of the energetic characteristics of these splitting processes. It is shown that the planar splitting decreases the probability of microcrack generation at grain boundaries.

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页码：337 / 346

页数：10

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