Interface structure and radiation damage resistance in Cu-Nb multilayer nanocomposites

被引：514

作者：

Demkowicz, M. J. ^{[1
]}

Hoagland, R. G. ^{[1
]}

Hirth, J. P. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.100.136102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use atomistic simulations to show that upon removal or insertion of atoms, misfit dislocations in Cu-Nb interfaces shift between two adjacent planes, forming pairs of extended jogs. Different jog combinations give rise to interface structures with unlike densities but nearly degenerate energies, making Cu-Nb interfaces virtually inexhaustible sinks for radiation-induced point defects and catalysts for efficient Frenkel pair recombination.

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页数：4

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