Transformation from slip to plastic flow deformation mechanism during tensile deformation of zirconium nanocontacts

被引:4
|
作者
Yamada, Kohei [1 ]
Kizuka, Tokushi [1 ]
机构
[1] Univ Tsukuba, Fac Pure & Appl Sci, Div Mat Sci, Tsukuba, Ibaraki 3058573, Japan
来源
SCIENTIFIC REPORTS | 2017年 / 7卷
基金
日本学术振兴会;
关键词
CONDUCTANCE QUANTIZATION; METALLIC NANOWIRES; CONTACTS; TEMPERATURE; BOUNDARIES; SIGNATURE;
D O I
10.1038/srep42901
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Various types of nanometer-sized structures have been applied to advanced functional and structural devices. Inherent structures, thermal stability, and properties of such nanostructures are emphasized when their size is decreased to several nanometers, especially, to several atoms. In this study, we observed the atomistic tensile deformation process of zirconium nanocontacts, which are typical nanostructures used in connection of nanometer-sized wires, transistors, and diodes, memory devices, and sensors, by in situ transmission electron microscopy. It was found that the contact was deformed via a plastic flow mechanism, which differs from the slip on lattice planes frequently observed in metals, and that the crystallinity became disordered. The various irregular relaxed structures formed during the deformation process affected the conductance.
引用
收藏
页数:9
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