Title

Deformation and damage mechanisms of multiwalled carbon nanotubes under high-velocity impact

Authors

Authors

S. R. Bakshi; V. Singh; D. G. McCartney; S. Seal;A. Agarwala

Comments

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Abbreviated Journal Title

Scr. Mater.

Keywords

cold spraying; MWNT; deformation; necking; rippling; POLYMER COMPOSITES; YOUNGS MODULUS; TRANSFORMATION; STRENGTH; BREAKING; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

Abstract

Deformation behavior and damage mechanisms of multiwalled carbon nanotubes have been studied under the high strain rate impact during cold spraying. Rippling is suggested as the mechanism for breakdown of nanotubes into smaller nanotubes and possible formation of carbon onions. Necking and cup-and-cone fracture with 70% reduction in area are observed that are comparable to mild steel fracture. Peeling off of outer walls of multiwalled carbon nanotubes is also seen due to shearing action between particles. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Journal Title

Scripta Materialia

Volume

59

Issue/Number

5

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

499

Last Page

502

WOS Identifier

WOS:000258165100006

ISSN

1359-6462

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