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Compressive properties of interface-containing Cu–Fe nano-pillars

Guo, Qiang and Greer, Julia R. (2012) Compressive properties of interface-containing Cu–Fe nano-pillars. Scripta Materialia, 66 (5). pp. 272-275. ISSN 1359-6462. doi:10.1016/j.scriptamat.2011.11.008.

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We report a focused-ion-beam-less fabrication route for producing 100 nm-diameter bi-material nano-pillars comprising single crystalline ~<110>-oriented Fe and ~<111>-oriented Cu. Uniaxial compression tests revealed that these pillars exhibit strengths around 1 GPa, without failure at the Cu–Fe interface. The pillars represent a prototyped metal–matrix nano-composite with highly controllable microstructure, high strengths, and strong metal–metal interfaces. The isolation and engineering of a single interface in a single pillar allow for fundamental insights gained into their deformation mechanisms.

Item Type:Article
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Greer, Julia R.0000-0002-9675-1508
Additional Information:© 2011 Acta Materialia Inc. Published by Elsevier Ltd. Received 1 November 2011; revised 9 November 2011; accepted 9 November 2011. Available online 15 November 2011. The authors gratefully acknowledge the financial support of the US Department of Energy, Office of Basic Energy Sciences through JRG’s Early Career grant. The authors also gratefully acknowledge the critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. Q. Guo would like to thank Dongchan Jang and Peri Landau for useful discussions and TEM analysis, and Andrew T. Jennings for providing the data for monolithic Cu and Fe pillars and help on mechanical data analysis.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:Interfaces; Compression test; Mechanical properties; Nanostructure
Issue or Number:5
Record Number:CaltechAUTHORS:20120302-094512909
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Official Citation:Qiang Guo, Julia R. Greer, Compressive properties of interface-containing Cu–Fe nano-pillars, Scripta Materialia, Volume 66, Issue 5, March 2012, Pages 272-275, ISSN 1359-6462, 10.1016/j.scriptamat.2011.11.008.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29556
Deposited On:02 Mar 2012 18:13
Last Modified:09 Nov 2021 17:08

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