Misinterpretation of the Shuttleworth equation

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    Abstract

    It has been argued for 60 years that there exists a relation between surface tension and surface energy on an unstrained solid, as given by the Shuttleworth equation. It is shown here that the Shuttleworth equation reduces to the definition of surface tension derived from mechanics. Therefore, it provides no additional relation to the physics of surfaces. This derivation also reveals precisely how the misinterpretation of the Shuttleworth equation has arisen, and should thus close the discussion on its applicability.
    Original languageEnglish
    Pages (from-to)627-629
    Number of pages3
    JournalScripta Materialia
    Volume66
    Issue number9
    DOIs
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Fracture
    • residual stresses
    • surface energy
    • surface tension
    • thermodynamics

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