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

    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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