In situ studies on radiation tolerance of nanotwinned Cu

Y. Chen; J. Li; K. Y. Yu; H. Wang; M. A. Kirk; M. Li; X. Zhang

doi:10.1016/j.actamat.2016.03.039

In situ studies on radiation tolerance of nanotwinned Cu

Y. Chen, J. Li, K. Y. Yu, H. Wang, M. A. Kirk, M. Li, X. Zhang

Chemical Engineering and Materials Science

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

61 Scopus citations

Abstract

We investigate the radiation response of nanotwinned Cu by using in situ Kr ion irradiation technique inside a transmission electron microscope. In comparison with coarse grained Cu, nanotwinned Cu exhibits smaller defect size and lower defect density. In situ studies also show that twin boundaries effectively remove a large number of defect clusters. The life time of defect clusters in nanotwinned Cu is very different from that in its coarse grained counterpart. This study provides further evidence on twin-boundary enabled radiation tolerance in nanotwinned metals.

Original language	English (US)
Pages (from-to)	148-156
Number of pages	9
Journal	Acta Materialia
Volume	111
DOIs	https://doi.org/10.1016/j.actamat.2016.03.039
State	Published - Jun 1 2016

Bibliographical note

Funding Information:
We acknowledge financial support by NSF-DMR-Metallic Materials and Nanostructures Program under grant no. 1304101 . Y Chen is supported financially by NSF-CMMI 1161978 . KY Yu and the work on fabrication of nanotwinned metal were supported by DOE-OBES under grant no. DE-SC0010482 . KY Yu also acknowledges financial support from China University of Petroleum-Beijing under grant no. 2462015YQ0602 . XZ and HW also acknowledge the seed grants from Texas A&M University on studying of materials in extreme environments via in situ techniques. We also thank Peter M. Baldo and Edward A. Ryan at Argonne National Laboratory for their help during in situ irradiation experiments. The electron microscopy coupled with in situ ion irradiation was accomplished at Argonne National Laboratory at the IVEM-Tandem Facility, a U.S. Department of Energy Facility funded by the DOE Office of Nuclear Energy , operated under Contract No. DE-AC02-06CH11357 by U Chicago, Argonne, LLC . Accesses to the DOE - Center for Integrated Nanotechnologies (CINT) at Los Alamos and Sandia National Laboratories and Microscopy and Imaging Center at Texas A&M University are also acknowledged.

Publisher Copyright:
© 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Keywords

Defect kinetics
In situ
Nanotwins
Radiation damage

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10.1016/j.actamat.2016.03.039

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title = "In situ studies on radiation tolerance of nanotwinned Cu",

abstract = "We investigate the radiation response of nanotwinned Cu by using in situ Kr ion irradiation technique inside a transmission electron microscope. In comparison with coarse grained Cu, nanotwinned Cu exhibits smaller defect size and lower defect density. In situ studies also show that twin boundaries effectively remove a large number of defect clusters. The life time of defect clusters in nanotwinned Cu is very different from that in its coarse grained counterpart. This study provides further evidence on twin-boundary enabled radiation tolerance in nanotwinned metals.",

keywords = "Defect kinetics, In situ, Nanotwins, Radiation damage",

author = "Y. Chen and J. Li and Yu, {K. Y.} and H. Wang and Kirk, {M. A.} and M. Li and X. Zhang",

note = "Funding Information: We acknowledge financial support by NSF-DMR-Metallic Materials and Nanostructures Program under grant no. 1304101 . Y Chen is supported financially by NSF-CMMI 1161978 . KY Yu and the work on fabrication of nanotwinned metal were supported by DOE-OBES under grant no. DE-SC0010482 . KY Yu also acknowledges financial support from China University of Petroleum-Beijing under grant no. 2462015YQ0602 . XZ and HW also acknowledge the seed grants from Texas A&M University on studying of materials in extreme environments via in situ techniques. We also thank Peter M. Baldo and Edward A. Ryan at Argonne National Laboratory for their help during in situ irradiation experiments. The electron microscopy coupled with in situ ion irradiation was accomplished at Argonne National Laboratory at the IVEM-Tandem Facility, a U.S. Department of Energy Facility funded by the DOE Office of Nuclear Energy , operated under Contract No. DE-AC02-06CH11357 by U Chicago, Argonne, LLC . Accesses to the DOE - Center for Integrated Nanotechnologies (CINT) at Los Alamos and Sandia National Laboratories and Microscopy and Imaging Center at Texas A&M University are also acknowledged. Publisher Copyright: {\textcopyright} 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.",

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AU - Li, J.

AU - Yu, K. Y.

AU - Wang, H.

AU - Kirk, M. A.

AU - Li, M.

AU - Zhang, X.

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PY - 2016/6/1

Y1 - 2016/6/1

N2 - We investigate the radiation response of nanotwinned Cu by using in situ Kr ion irradiation technique inside a transmission electron microscope. In comparison with coarse grained Cu, nanotwinned Cu exhibits smaller defect size and lower defect density. In situ studies also show that twin boundaries effectively remove a large number of defect clusters. The life time of defect clusters in nanotwinned Cu is very different from that in its coarse grained counterpart. This study provides further evidence on twin-boundary enabled radiation tolerance in nanotwinned metals.

AB - We investigate the radiation response of nanotwinned Cu by using in situ Kr ion irradiation technique inside a transmission electron microscope. In comparison with coarse grained Cu, nanotwinned Cu exhibits smaller defect size and lower defect density. In situ studies also show that twin boundaries effectively remove a large number of defect clusters. The life time of defect clusters in nanotwinned Cu is very different from that in its coarse grained counterpart. This study provides further evidence on twin-boundary enabled radiation tolerance in nanotwinned metals.

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KW - In situ

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KW - Radiation damage

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In situ studies on radiation tolerance of nanotwinned Cu

Abstract

Bibliographical note

Keywords

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