Elastic and shear moduli of single-walled carbon nanotube ropes

被引：1266

作者：

Salvetat, JP ^{[1
]}

Briggs, GAD

Bonard, JM

Bacsa, RR

Kulik, AJ

Stöckli, T

Burnham, NA

Forró, L

机构：

[1] Ecole Polytech Fed Lausanne, Dept Phys, CH-1015 Lausanne, Switzerland

[2] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.82.944

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Carbon nanotubes are believed to be the ultimate low-density high-modulus fibers, which makes their characterization at nanometer scale vital for applications. By using an atomic force microscope and a special substrate, the elastic and shear moduli of individual single-walled nanotube (SWNT) ropes were measured to be of the order of 1 TPa and 1 GPa, respectively. In contrast to multiwalled nanotubes, an unexpectedly low intertube shear stiffness dominated the flexural behavior of the SWNT ropes. This suggests that intertube cohesion should be improved for applications of SWNT ropes in high-performance composite materials.

引用

页码：944 / 947

页数：4

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