Size Effects in the Mechanical Properties of Bulk Bicontinuous Ta/Cu Nanocomposites Made by Liquid Metal Dealloying

Extremely strong and ductile Cu/Ta bulk nanocomposites are fabricated by liquid metal dealloying. These materials exhibit a complex two‐phase microstructure with a tunable length scale that allows for a significant increase in strength with decreasing feature size. Their yield behavior is consistent...

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Bibliographic Details
Published inAdvanced engineering materials Vol. 18; no. 1; pp. 46 - 50
Main Authors McCue, Ian, Ryan, Stephen, Hemker, Kevin, Xu, Xiandong, Li, Nan, Chen, Mingwei, Erlebacher, Jonah
Format Journal Article
LanguageEnglish
Published Blackwell Publishing Ltd 01.01.2016
Subjects
ALLOYING
COMPOSITES
Copper
Dealloying
Liquid metals
MECHANICAL PROPERTIES
Microstructure
MICROSTRUCTURES
Nanocomposites
Nanostructure
PROPERTIES
SIZE EFFECT
Tantalum
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Summary:Extremely strong and ductile Cu/Ta bulk nanocomposites are fabricated by liquid metal dealloying. These materials exhibit a complex two‐phase microstructure with a tunable length scale that allows for a significant increase in strength with decreasing feature size. Their yield behavior is consistent with a bulk manifestation of size effects previously associated only with nanofabricated materials.
Bibliography:istex:E9586F247A3060C7FA0896CF8FAE08CD83ED72AA
ArticleID:ADEM201500219
I.M. and J.E. are grateful for funding from the National Science Foundation under Grant DMR-1003901. KJH's participation was supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Grant DE-FG0207-ER46437. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. ((Supporting Information is available online from Wiley Online Library or from the author)).
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ISSN:1438-1656
1527-2648
DOI:10.1002/adem.201500219