Ultrahigh Strength and Stiffness in Cross-Linked Hierarchical Carbon Nanotube Bundles

被引：154

作者：

Filleter, T. ^{[1
]}

Bernal, R. ^{[1
]}

Li, S. ^{[2
]}

Espinosa, H. D. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA

[2] Northwestern Univ, NUANCE Ctr, Evanston, IL 60208 USA

来源：

ADVANCED MATERIALS | 2011年 / 23卷 / 25期

关键词：

MATERIAL-TESTING-SYSTEM; IN-SITU ELECTRON; REINFORCEMENT; MICROSCOPY; MECHANISM;

D O I：

10.1002/adma.201100547

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electron irradiation induced covalent cross-linking at multiple length scales within double-walled nanotube bundles is demonstrated to lead to ultra-high effective strength and stiffness. In situ transmission electron microscopy tensile testing reveals order of magnitude enhancements in the mechanical properties as well as distinct failure mechanisms of cross-linked versus un-crosslinked bundles.

引用

页码：2855 / +

页数：7

共 34 条

[1]

Ajayan PM, 2000, ADV MATER, V12, P750, DOI 10.1002/(SICI)1521-4095(200005)12:10<750::AID-ADMA750>3.0.CO

[2]

2-6

[3] Strong bundles [J].

Ajayan, PM ;

Banhart, F .

NATURE MATERIALS, 2004, 3 (03) :135-136

[4]

Astrom JA, 2004, PHYS REV LETT, V93, P4

[5] On the effect of X-ray irradiation on the deformation and fracture behavior of human cortical bone [J].

Barth, Holly D. ;

Launey, Maximilien E. ;

MacDowell, Alastair A. ;

Ager, Joel W., III ;

Ritchie, Robert O. .

BONE, 2010, 46 (06) :1475-1485

[6] Multiscale carbon nanotube-carbon fiber reinforcement for advanced epoxy composites [J].

Bekyarova, E. ;

Thostenson, E. T. ;

Yu, A. ;

Kim, H. ;

Gao, J. ;

Tang, J. ;

Hahn, H. T. ;

Chou, T. -W. ;

Itkis, M. E. ;

Haddon, R. C. .

LANGMUIR, 2007, 23 (07) :3970-3974

[7] Functionalized single-walled carbon nanotubes for carbon fiber-epoxy composites [J].

Bekyarova, Elena ;

Thostenson, Erik T. ;

Yu, Aiping ;

Itkis, Mikhail E. ;

Fakhrutdinov, Danylo ;

Chou, Tsu-Wei ;

Haddon, Robert C. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (48) :17865-17871

[8] Nature designs tough collagen: Explaining the nanostructure of collagen fibrils [J].

Buehler, Markus J. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (33) :12285-12290

[9] Deformation and failure of protein materials in physiologically extreme conditions and disease [J].

Buehler, Markus J. ;

Yung, Yu Ching .

NATURE MATERIALS, 2009, 8 (03) :175-188

[10] Multiwall Nanotubes Can Be Stronger than Single Wall Nanotubes and Implications for Nanocomposite Design [J].

Byrne, E. M. ;

McCarthy, M. A. ;

Xia, Z. ;

Curtin, W. A. .

PHYSICAL REVIEW LETTERS, 2009, 103 (04)

← 1 2 3 4 →