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Title: Microstructure investigations of U 3 Si 2 implanted by high-energy Xe ions at 600 °C

Abstract

The microstructure investigations on a high-energy Xe-implanted U3Si2 pellet were performed. The promising accident tolerant fuel (ATF) candidate, U3Si2, was irradiated by 84 MeV Xe ions at 600 degrees C at Argonne Tandem Linac Accelerator System (ATLAS). The characterizations of the Xe implanted sample were conducted using advanced transmission electron microscopy (TEM) techniques. An oxidation layer was observed on the sample surface after irradiation under the similar to 10(-5) Pa vacuum. The study on the oxidation layer not only unveils the readily oxidation behavior of U3Si2 under high-temperature irradiation conditions, but also develops an understanding of its oxidation mechanism. Intragranular Xe bubbles with bimodal size distribution were observed within the Xe deposition region of the sample induced by 84 MeV Xe ion implantation. At the irradiation temperature of 600 degrees C, the gaseous swelling strain contributed by intragranular bubbles was found to be insignificant, indicating an acceptable fission gas behavior of U3Si2 as a light water reactor (LWR) fuel operating at such a temperature.

Authors:
; ORCiD logo; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy - Nuclear Energy Advanced Modeling and Simulation (NEAMS)
OSTI Identifier:
1460816
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 503; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

Citation Formats

Miao, Yinbin, Harp, Jason, Mo, Kun, Kim, Yeon Soo, Zhu, Shaofei, and Yacout, Abdellatif M. Microstructure investigations of U 3 Si 2 implanted by high-energy Xe ions at 600 °C. United States: N. p., 2018. Web. doi:10.1016/j.jnucmat.2018.02.031.
Miao, Yinbin, Harp, Jason, Mo, Kun, Kim, Yeon Soo, Zhu, Shaofei, & Yacout, Abdellatif M. Microstructure investigations of U 3 Si 2 implanted by high-energy Xe ions at 600 °C. United States. doi:10.1016/j.jnucmat.2018.02.031.
Miao, Yinbin, Harp, Jason, Mo, Kun, Kim, Yeon Soo, Zhu, Shaofei, and Yacout, Abdellatif M. Tue . "Microstructure investigations of U 3 Si 2 implanted by high-energy Xe ions at 600 °C". United States. doi:10.1016/j.jnucmat.2018.02.031.
@article{osti_1460816,
title = {Microstructure investigations of U 3 Si 2 implanted by high-energy Xe ions at 600 °C},
author = {Miao, Yinbin and Harp, Jason and Mo, Kun and Kim, Yeon Soo and Zhu, Shaofei and Yacout, Abdellatif M.},
abstractNote = {The microstructure investigations on a high-energy Xe-implanted U3Si2 pellet were performed. The promising accident tolerant fuel (ATF) candidate, U3Si2, was irradiated by 84 MeV Xe ions at 600 degrees C at Argonne Tandem Linac Accelerator System (ATLAS). The characterizations of the Xe implanted sample were conducted using advanced transmission electron microscopy (TEM) techniques. An oxidation layer was observed on the sample surface after irradiation under the similar to 10(-5) Pa vacuum. The study on the oxidation layer not only unveils the readily oxidation behavior of U3Si2 under high-temperature irradiation conditions, but also develops an understanding of its oxidation mechanism. Intragranular Xe bubbles with bimodal size distribution were observed within the Xe deposition region of the sample induced by 84 MeV Xe ion implantation. At the irradiation temperature of 600 degrees C, the gaseous swelling strain contributed by intragranular bubbles was found to be insignificant, indicating an acceptable fission gas behavior of U3Si2 as a light water reactor (LWR) fuel operating at such a temperature.},
doi = {10.1016/j.jnucmat.2018.02.031},
journal = {Journal of Nuclear Materials},
issn = {0022-3115},
number = C,
volume = 503,
place = {United States},
year = {2018},
month = {5}
}