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Title: Structural hierarchy of nanocarbon in copper covetics

Abstract

Here, we prepared 0.4 wt.% carbon infused copper (i.e., copper covetic, CuCv) by electronbeam melting and deposited ≈18 nm-thick films of the CuCv on a substrate by electron-beam evaporation. Helium ion microscopy (HIM) and scanning transmission electron microscopy (STEM) were used to study the characteristics of the carbon nanostructure in the CuCv bulk and thin films. HIM observation of the fracture and ion-polished surface of bulk CuCv revealed ripple structures that are associated with carbon nanoribbons formed in the copper matrix. STEM high angle annular dark field (HAADF) imaging and energy dispersive X-ray spectroscopy (EDX) mapping indicated that carbon nanoparticles and carbon-rich pathways are interconnected to form a carbon-rich network in the CuCv films. High-resolution transmission electron microscopy and STEM electron energy loss spectroscopy (EELS) suggest that the carbon nanoparticles are composed of highly distorted graphenic carbon sheets, bond to copper matrix, and likely provide means for superior electrical and thermal conduction. In this letter, we report structural hierarchy and representations of carbon nanostructure in copper covetics at different scales.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
OSTI Identifier:
1479286
Alternate Identifier(s):
OSTI ID: 1478548
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 17; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; copper covetics; carbon nanostructure; electron-beam evaporation; helium ion microscopy (HIM); scanning transmission electron microscopy (STEM)

Citation Formats

Ma, Beihai, Balachandran, Uthamalingam, Wang, Jie, Wen, Jianguo, Lee, Tae H., Dorris, Stephen E., and Rondinone, Adam J. Structural hierarchy of nanocarbon in copper covetics. United States: N. p., 2018. Web. doi:10.1063/1.5052622.
Ma, Beihai, Balachandran, Uthamalingam, Wang, Jie, Wen, Jianguo, Lee, Tae H., Dorris, Stephen E., & Rondinone, Adam J. Structural hierarchy of nanocarbon in copper covetics. United States. doi:10.1063/1.5052622.
Ma, Beihai, Balachandran, Uthamalingam, Wang, Jie, Wen, Jianguo, Lee, Tae H., Dorris, Stephen E., and Rondinone, Adam J. Mon . "Structural hierarchy of nanocarbon in copper covetics". United States. doi:10.1063/1.5052622. https://www.osti.gov/servlets/purl/1479286.
@article{osti_1479286,
title = {Structural hierarchy of nanocarbon in copper covetics},
author = {Ma, Beihai and Balachandran, Uthamalingam and Wang, Jie and Wen, Jianguo and Lee, Tae H. and Dorris, Stephen E. and Rondinone, Adam J.},
abstractNote = {Here, we prepared 0.4 wt.% carbon infused copper (i.e., copper covetic, CuCv) by electronbeam melting and deposited ≈18 nm-thick films of the CuCv on a substrate by electron-beam evaporation. Helium ion microscopy (HIM) and scanning transmission electron microscopy (STEM) were used to study the characteristics of the carbon nanostructure in the CuCv bulk and thin films. HIM observation of the fracture and ion-polished surface of bulk CuCv revealed ripple structures that are associated with carbon nanoribbons formed in the copper matrix. STEM high angle annular dark field (HAADF) imaging and energy dispersive X-ray spectroscopy (EDX) mapping indicated that carbon nanoparticles and carbon-rich pathways are interconnected to form a carbon-rich network in the CuCv films. High-resolution transmission electron microscopy and STEM electron energy loss spectroscopy (EELS) suggest that the carbon nanoparticles are composed of highly distorted graphenic carbon sheets, bond to copper matrix, and likely provide means for superior electrical and thermal conduction. In this letter, we report structural hierarchy and representations of carbon nanostructure in copper covetics at different scales.},
doi = {10.1063/1.5052622},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 17,
volume = 113,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 1 work
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Figures / Tables:

Fig. 1 Fig. 1: HIM micrographs of electron-beam melted CuCv showing (a) graphenic carbon flakes on fracture surface, (b) nanoparticles on fracture surface, (c) ripple structure on fracture surface, and (d) ripple structure on ion-polished surface.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.