Deformation of a ceramic/metal interface at the nanoscale. Academic Article

abstract

• 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.

authors

• Lavernia Borrego, Enrique
• Schoenung, Julie

published proceedings

• Nanoscale

author list (cited authors)

• Jiang, L., Hu, T., Yang, H., Zhang, D., Topping, T., Lavernia, E. J., & Schoenung, J. M.

complete list of authors

• Jiang, Lin||Hu, Tao||Yang, Hanry||Zhang, Dalong||Topping, Troy||Lavernia, Enrique J||Schoenung, Julie M

publication date

• May 2016

publisher

• Royal Society of Chemistry (RSC)  Publisher

published in

• Nanoscale  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering
• 51 Physical Sciences

Digital Object Identifier (DOI)

• 10.1039/c6nr02011a

start page

• 10541

end page

• 10547

volume

• 8

issue

• 20

URL

• http://dx.doi.org/10.1039/c6nr02011a