TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation

Hang Zang; Di Yun; Kun Mo; Kunpeng Wang; Walid Mohamed; Marquis A. Kirk; Daniel Velázquez; Rachel Seibert; Kevin Logan; Jeffrey Terry; Peter Baldo; Abdellatif M. Yacout; Wenbo Liu; Bo Zhang; Yedong Gao; Yang Du; Jing Liu

doi:10.1016/j.jnucmat.2017.07.033

TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation

Hang Zang, Di Yun, Kun Mo, Kunpeng Wang, Walid Mohamed, Marquis A. Kirk, Daniel Velázquez, Rachel Seibert, Kevin Logan, Jeffrey Terry, Peter Baldo, Abdellatif M. Yacout, Wenbo Liu, Bo Zhang, Yedong Gao, Yang Du, Jing Liu

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3 Scopus citations

Abstract

In this study, smaller-grained (hundred nano-meter size grain) and larger-grained (micro-meter size grain) U-10Mo specimens have been irradiated (implanted) with 250 keV Xe⁺ beam and were in situ characterized by TEM. Xe bubbles were not seen in the specimen after an implantation fluence of 2 × 10²⁰ ions/m² at room temperature. Nucleation of Xe bubbles happened during heating of the specimen to a final temperature of 300 °C. By comparing measured Xe bubble statistics, the nucleation and growth behaviors of Xe bubbles were investigated in smaller-grained and larger-grained U-10Mo specimens. A multi-atom kind of nucleation mechanism has been observed in both specimens. X-ray Absorption spectroscopy showed the edge position in the bubbles to be the same as that of Xe gas. The size of Xe bubbles has been shown to be bigger in larger-grained specimens than in smaller-grained specimens at the same implantation conditions.

Original language	English
Pages (from-to)	165-171
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	494
DOIs	https://doi.org/10.1016/j.jnucmat.2017.07.033
State	Published - Oct 2017
Externally published	Yes

Funding

Part of this work was supported by the U.S. Department of Energy under Contract No. DE-AC-02-06CH11357 between UChicago Argonne, LLC and the Department of Energy, and by the U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-051D14517 as part of a Nuclear Science User Facilities experiment. MRCAT operations are supported by the member institutions. This research used resources of the Advanced Photon Source, a U.S. Department of Energy Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory.

Funders	Funder number
DOE Office of Science
U.S. Department of Energy Office of Science
U.S. Department of Energy	DE-AC07-051D14517, DE-AC-02-06CH11357
Office of Nuclear Energy
Argonne National Laboratory

Keywords

Fission gas behaviors
Ion irradiation
Metallic alloy fuels
U-Mo alloy
XAS
Xe bubble

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10.1016/j.jnucmat.2017.07.033

Cite this

Zang, H., Yun, D., Mo, K., Wang, K., Mohamed, W., Kirk, M. A., Velázquez, D., Seibert, R., Logan, K., Terry, J., Baldo, P., Yacout, A. M., Liu, W., Zhang, B., Gao, Y., Du, Y., & Liu, J. (2017). TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation. Journal of Nuclear Materials, 494, 165-171. https://doi.org/10.1016/j.jnucmat.2017.07.033

@article{9198e6b95042485aa0c7cb9c401a1170,

title = "TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation",

abstract = "In this study, smaller-grained (hundred nano-meter size grain) and larger-grained (micro-meter size grain) U-10Mo specimens have been irradiated (implanted) with 250 keV Xe+ beam and were in situ characterized by TEM. Xe bubbles were not seen in the specimen after an implantation fluence of 2 × 1020 ions/m2 at room temperature. Nucleation of Xe bubbles happened during heating of the specimen to a final temperature of 300 °C. By comparing measured Xe bubble statistics, the nucleation and growth behaviors of Xe bubbles were investigated in smaller-grained and larger-grained U-10Mo specimens. A multi-atom kind of nucleation mechanism has been observed in both specimens. X-ray Absorption spectroscopy showed the edge position in the bubbles to be the same as that of Xe gas. The size of Xe bubbles has been shown to be bigger in larger-grained specimens than in smaller-grained specimens at the same implantation conditions.",

keywords = "Fission gas behaviors, Ion irradiation, Metallic alloy fuels, U-Mo alloy, XAS, Xe bubble",

author = "Hang Zang and Di Yun and Kun Mo and Kunpeng Wang and Walid Mohamed and Kirk, {Marquis A.} and Daniel Vel{\'a}zquez and Rachel Seibert and Kevin Logan and Jeffrey Terry and Peter Baldo and Yacout, {Abdellatif M.} and Wenbo Liu and Bo Zhang and Yedong Gao and Yang Du and Jing Liu",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = oct,

doi = "10.1016/j.jnucmat.2017.07.033",

language = "English",

volume = "494",

pages = "165--171",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

}

Zang, H, Yun, D, Mo, K, Wang, K, Mohamed, W, Kirk, MA, Velázquez, D, Seibert, R, Logan, K, Terry, J, Baldo, P, Yacout, AM, Liu, W, Zhang, B, Gao, Y, Du, Y & Liu, J 2017, 'TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation', Journal of Nuclear Materials, vol. 494, pp. 165-171. https://doi.org/10.1016/j.jnucmat.2017.07.033

TY - JOUR

T1 - TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation

AU - Zang, Hang

AU - Yun, Di

AU - Mo, Kun

AU - Wang, Kunpeng

AU - Mohamed, Walid

AU - Kirk, Marquis A.

AU - Velázquez, Daniel

AU - Seibert, Rachel

AU - Logan, Kevin

AU - Terry, Jeffrey

AU - Baldo, Peter

AU - Yacout, Abdellatif M.

AU - Liu, Wenbo

AU - Zhang, Bo

AU - Gao, Yedong

AU - Du, Yang

AU - Liu, Jing

PY - 2017/10

Y1 - 2017/10

N2 - In this study, smaller-grained (hundred nano-meter size grain) and larger-grained (micro-meter size grain) U-10Mo specimens have been irradiated (implanted) with 250 keV Xe+ beam and were in situ characterized by TEM. Xe bubbles were not seen in the specimen after an implantation fluence of 2 × 1020 ions/m2 at room temperature. Nucleation of Xe bubbles happened during heating of the specimen to a final temperature of 300 °C. By comparing measured Xe bubble statistics, the nucleation and growth behaviors of Xe bubbles were investigated in smaller-grained and larger-grained U-10Mo specimens. A multi-atom kind of nucleation mechanism has been observed in both specimens. X-ray Absorption spectroscopy showed the edge position in the bubbles to be the same as that of Xe gas. The size of Xe bubbles has been shown to be bigger in larger-grained specimens than in smaller-grained specimens at the same implantation conditions.

AB - In this study, smaller-grained (hundred nano-meter size grain) and larger-grained (micro-meter size grain) U-10Mo specimens have been irradiated (implanted) with 250 keV Xe+ beam and were in situ characterized by TEM. Xe bubbles were not seen in the specimen after an implantation fluence of 2 × 1020 ions/m2 at room temperature. Nucleation of Xe bubbles happened during heating of the specimen to a final temperature of 300 °C. By comparing measured Xe bubble statistics, the nucleation and growth behaviors of Xe bubbles were investigated in smaller-grained and larger-grained U-10Mo specimens. A multi-atom kind of nucleation mechanism has been observed in both specimens. X-ray Absorption spectroscopy showed the edge position in the bubbles to be the same as that of Xe gas. The size of Xe bubbles has been shown to be bigger in larger-grained specimens than in smaller-grained specimens at the same implantation conditions.

KW - Fission gas behaviors

KW - Ion irradiation

KW - Metallic alloy fuels

KW - U-Mo alloy

KW - XAS

KW - Xe bubble

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DO - 10.1016/j.jnucmat.2017.07.033

M3 - Article

AN - SCOPUS:85024905775

SN - 0022-3115

VL - 494

SP - 165

EP - 171

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

TEM and XAS investigation of fission gas behaviors in U-Mo alloy fuels through ion beam irradiation

Abstract

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Keywords

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