Individual multiwalled carbon nanotubes grown by chemical vapor deposition (CVD) were tensile tested within the chamber of an electron microscope using an atomic force microscope-based technique. Weibull-Poisson statistics could accurately model the nanotube tensile strength data. Weibull shape and scale parameters of 1.7 and 109 GPa were obtained. The former reflects a wide variability in strength similar to that observed for high-modulus graphite fibers, while the latter indicates that the irregular CVD-grown tube wall structure requires, in some cases, higher breaking forces than more regular tube wall structures. This apparent strengthening mechanism is most likely caused by an enhanced interaction between the walls of the nanotube.
|Number of pages||3|
|Journal||Applied Physics Letters|
|State||Published - Nov 14 2005|
Bibliographical noteFunding Information:
This project was supported by the (CNT) Thematic European network on “Carbon Nanotubes for Future Industrial Composites” (EU), the NOESIS European project on “Aerospace Nanotube Hybrid Composite Structures with Sensing and Actuating Capabilities,” the Minerva Foundation, the G. M. J. Schmidt Minerva Centre of Supramolecular Architectures, and the Israeli Academy of Science.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)