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Issue 20, 2016
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Deformation of a ceramic/metal interface at the nanoscale

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The mechanical response of heterophase interfaces has attracted substantial attention in recent years. Here, we utilized an in situ transmission electron microscopy (TEM) technique to isolate an individual nanoscale ceramic/metal interface and characterize its nanomechanical response. The interface, at which there was a Mg-rich segregation nanolayer between the single crystal ceramic (B4C) and the polycrystalline metal (Al alloy, AA5083), was determined to have a bond strength greater than 1.5 GPa. Bimodal failure and metallic grain rotation occurred in the metallic region, allowing the interface to accommodate a deformation strain of 5.4%. The roles of elemental segregation and nanoscale dimensions on interfacial debonding mechanisms are discussed.

Graphical abstract: Deformation of a ceramic/metal interface at the nanoscale

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The article was received on 09 Mar 2016, accepted on 27 Apr 2016 and first published on 27 Apr 2016

Article type: Communication
DOI: 10.1039/C6NR02011A
Nanoscale, 2016,8, 10541-10547

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    Deformation of a ceramic/metal interface at the nanoscale

    L. Jiang, T. Hu, H. Yang, D. Zhang, T. Topping, E. J. Lavernia and J. M. Schoenung, Nanoscale, 2016, 8, 10541
    DOI: 10.1039/C6NR02011A

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