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Cryogenic nanoindentation size effect in [0 0 1]-oriented face-centered cubic and body centered cubic single crystals

Lee, Seok-Woo and Meza, Lucas and Greer, Julia R. (2013) Cryogenic nanoindentation size effect in [0 0 1]-oriented face-centered cubic and body centered cubic single crystals. Applied Physics Letters, 103 (10). Art. No. 101906. ISSN 0003-6951. doi:10.1063/1.4820585.

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Cryogenic nanoindentation experiments performed on [0 0 1]-oriented single crystalline Nb, W, Al, and Au in an in situ nanomechanical instrument with customized cryogenic testing capability revealed temperature dependence on nanoindentation size effect. The Nix-Gao model, commonly used to capture indentation size effect at room temperature, does not take into account thermal effects and hence is not able to explain these experimental results where both hardness at infinite indentation depth and characteristic material length scale were found to be strong functions of temperature. Physical attributes are critically examined in the framework of intrinsic lattice resistance and dislocation cross-slip probability.

Item Type:Article
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URLURL TypeDescription DOIArticle
Lee, Seok-Woo0000-0001-6752-5694
Meza, Lucas0000-0003-0250-2621
Greer, Julia R.0000-0002-9675-1508
Additional Information:© 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. Received 11 April 2013; accepted 20 August 2013; published online 6 September 2013. The authors gratefully acknowledge the financial support of the Kavli Nanoscience Institute (KNI) through SWL’s prized post-doctoral fellowship and of the W. M. Keck Institute for Space Studies at Caltech. R. Maaß and R. Zmuidzinas are acknowledged for significant contributions in the initial instrumental design and preliminary data acquisition. W D. Nix is thanked for useful discussions.
Group:Keck Institute for Space Studies, Kavli Nanoscience Institute
Funding AgencyGrant Number
Kavli Nanoscience InstituteUNSPECIFIED
Keck Institute for Space Studies (KISS)UNSPECIFIED
Issue or Number:10
Record Number:CaltechAUTHORS:20131202-083351205
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Official Citation:Cryogenic nanoindentation size effect in [0 0 1]-oriented face-centered cubic and body-centered cubic single crystals Seok-Woo Lee , Lucas Meza and Julia R. Greer Appl. Phys. Lett. 103, 101906 (2013);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42761
Deposited By: Ruth Sustaita
Deposited On:02 Dec 2013 17:07
Last Modified:10 Nov 2021 16:27

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