Synthesis and mechanical behavior of nanoporous nanotwinned copper

Ran Liu; Shijian Zheng; Jon Kevin Baldwin; Mary Kuthuru; Nathan Mara; Antonia Antoniou

doi:10.1063/1.4841455

Synthesis and mechanical behavior of nanoporous nanotwinned copper

Ran Liu, Shijian Zheng, Jon Kevin Baldwin, Mary Kuthuru, Nathan Mara, Antonia Antoniou

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We synthesize nanoporous copper (NP Cu) through electrochemical dealloying of amorphous Cu_0.41Si_0.59 under compressive residual stress. Transmission Electron Microscopy reveals that struts are nanocrystalline with grain size equal to the strut thickness. Moreover, a significant population of twins with spacing ∼7 nm is present within each imaged grain. The hardness of this nanocrystalline, nanotwinned NP Cu is approximately one order of magnitude greater than reports on NP Cu in the literature. The yield strength of individual struts inferred through dimensional analysis is approximately an order of magnitude greater than bulk copper and compares well with other nanostructured copper systems.

Original language	English (US)
Article number	241907
Journal	Applied Physics Letters
Volume	103
Issue number	24
DOIs	https://doi.org/10.1063/1.4841455
State	Published - Dec 9 2013

Bibliographical note

Funding Information:
We are grateful to NSF for support through Grant Nos. CMMI-1200857 and CMMI-1301268. 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. Contributions from M.K. were supported by NSF through RET Program No. DMR-0851574.

Access

10.1063/1.4841455

OpenUrl availability

Full text

Cite this

@article{f5283ac20515458384fe669ef445d088,

title = "Synthesis and mechanical behavior of nanoporous nanotwinned copper",

abstract = "We synthesize nanoporous copper (NP Cu) through electrochemical dealloying of amorphous Cu0.41Si0.59 under compressive residual stress. Transmission Electron Microscopy reveals that struts are nanocrystalline with grain size equal to the strut thickness. Moreover, a significant population of twins with spacing ∼7 nm is present within each imaged grain. The hardness of this nanocrystalline, nanotwinned NP Cu is approximately one order of magnitude greater than reports on NP Cu in the literature. The yield strength of individual struts inferred through dimensional analysis is approximately an order of magnitude greater than bulk copper and compares well with other nanostructured copper systems.",

author = "Ran Liu and Shijian Zheng and Baldwin, {Jon Kevin} and Mary Kuthuru and Nathan Mara and Antonia Antoniou",

note = "Funding Information: We are grateful to NSF for support through Grant Nos. CMMI-1200857 and CMMI-1301268. 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. Contributions from M.K. were supported by NSF through RET Program No. DMR-0851574.",

year = "2013",

month = dec,

day = "9",

doi = "10.1063/1.4841455",

language = "English (US)",

volume = "103",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "24",

}

TY - JOUR

T1 - Synthesis and mechanical behavior of nanoporous nanotwinned copper

AU - Liu, Ran

AU - Zheng, Shijian

AU - Baldwin, Jon Kevin

AU - Kuthuru, Mary

AU - Mara, Nathan

AU - Antoniou, Antonia

N1 - Funding Information: We are grateful to NSF for support through Grant Nos. CMMI-1200857 and CMMI-1301268. 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. Contributions from M.K. were supported by NSF through RET Program No. DMR-0851574.

PY - 2013/12/9

Y1 - 2013/12/9

N2 - We synthesize nanoporous copper (NP Cu) through electrochemical dealloying of amorphous Cu0.41Si0.59 under compressive residual stress. Transmission Electron Microscopy reveals that struts are nanocrystalline with grain size equal to the strut thickness. Moreover, a significant population of twins with spacing ∼7 nm is present within each imaged grain. The hardness of this nanocrystalline, nanotwinned NP Cu is approximately one order of magnitude greater than reports on NP Cu in the literature. The yield strength of individual struts inferred through dimensional analysis is approximately an order of magnitude greater than bulk copper and compares well with other nanostructured copper systems.

AB - We synthesize nanoporous copper (NP Cu) through electrochemical dealloying of amorphous Cu0.41Si0.59 under compressive residual stress. Transmission Electron Microscopy reveals that struts are nanocrystalline with grain size equal to the strut thickness. Moreover, a significant population of twins with spacing ∼7 nm is present within each imaged grain. The hardness of this nanocrystalline, nanotwinned NP Cu is approximately one order of magnitude greater than reports on NP Cu in the literature. The yield strength of individual struts inferred through dimensional analysis is approximately an order of magnitude greater than bulk copper and compares well with other nanostructured copper systems.

UR - http://www.scopus.com/inward/record.url?scp=84890486024&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890486024&partnerID=8YFLogxK

U2 - 10.1063/1.4841455

DO - 10.1063/1.4841455

M3 - Article

AN - SCOPUS:84890486024

SN - 0003-6951

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 241907

ER -

Synthesis and mechanical behavior of nanoporous nanotwinned copper

Abstract

Bibliographical note

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this