Kinking nonlinear elastic solids, nanoindentations, and geology

被引：107

作者：

Barsoum, MW ^{[1
]}

Murugaiah, A ^{[1
]}

Kalidindi, SR ^{[1
]}

Zhen, T ^{[1
]}

机构：

[1] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.255508

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The physical mechanism responsible for nonlinear elastic, hysteretic, and discrete memory response of nonlinear mesoscopic elastic solids has to date not been identified. We show, by nanoindenting mica single crystals, that this response is most likely due to the formation of dissipative and fully reversible, dislocation-based kink bands. We further claim that solids with high c/a ratios, which per force are plastically anisotropic, should deform by kinking, provided they do not twin. These kinking nonlinear elastic solids include layered ternary carbides, nitrides, oxides, and semiconductors, graphite, and the layered phases, such as mica, present in nonlinear mesoscopic elastic solids.

引用

页码：255508 / 1

页数：4

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