Atomistic dynamics of deformation, fracture, and joining of individual single-walled carbon nanotubes

Koji Asaka; Tokushi Kizuka

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Atomistic dynamics of deformation, fracture, and joining of individual single-walled carbon nanotubes

机译：单个单壁碳纳米管的变形，断裂和结合的原子动力学

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The tensile deformation process of individual single-walled carbon nanotubes (SWCNTs) was in situ observed with measurements of the mechanical properties by transmission electron microscopy combined with the functions of scanning probe microscopy. The values of Young's modulus, tensile stress and strain at the fracture of SWCNTs are 950± 130 GPa, 25± 1 GPa, and 0.30±0.03, respectively. It was shown that two tips of fractured SWCNTs can be recovered to produce a single tubular structure by contact under compressive force and bias voltage. The in situ observations also demonstrated the formation of carbon monatomic wires during the fracture process of SWCNTs.

机译：用透射电子显微镜结合扫描探针显微镜的功能测量机械性能，就地观察了单个单壁碳纳米管（SWCNT）的拉伸变形过程。 SWCNT断裂时的杨氏模量，拉伸应力和应变的值分别为950±130GPa，25±1GPa和0.30±0.03。结果表明，通过在压缩力和偏置电压下接触，可以回收断裂的SWCNT的两个尖端，以产生单个管状结构。原位观察还证明了在SWCNT断裂过程中碳单原子丝的形成。

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《Physical review. B, Condensed Matter And Materials Physics》 |2005年第11期|p.115431.1-115431.5|共5页
作者
Koji Asaka; Tokushi Kizuka;
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作者单位

Special Research Project on Nanoscience, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571, Japan;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
nanotubes; mechanical properties of solids; nanoscale materials: clusters; nanoparticles; nanotubes; and nanocrystals; nanoscale materials and structures: fabrication and characterization;

机译：纳米管;固体的机械性能;纳米级材料：团簇;纳米粒子纳米管和纳米晶体;纳米级材料和结构：制造和表征;

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6. Selective Deposition and Alignment of Single-Walled Carbon Nanotubes Assisted by Dielectrophoresis: From Thin Films to Individual Nanotubes [O] . Pengfei Li, Wei Xue 2010

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机译：单个单壁碳纳米管的变形，断裂和结合的原子动力学

Atomistic dynamics of deformation, fracture, and joining of individual single-walled carbon nanotubes

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