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Title: Crystal structure of high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr and rare-earth elements

Abstract

Researchers commonly observe high-Zr inclusions in actinide-Zr alloys. As there is very little published data on the crystal structures of these inclusions, it has generally been assumed that the inclusions were impurity-stabilized a-Zr. However, new electron-diffraction data from two high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr, and rare-earth elements show that these inclusions are not a-Zr (which has a hexagonal structure) but instead have a face-centered cubic structure. This data is unique in that it combines single-crystal diffraction patterns and microchemical analyses from individual inclusions. More data on other high-Zr inclusions is clearly required. However, the present results suggest that caution is needed in assuming that all high-Zr inclusions in actinide-Zr alloys are a-Zr.

Authors:
; ; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
DOE - NE
OSTI Identifier:
1126736
Report Number(s):
INL/JOU-13-30425
Journal ID: ISSN 0022-3115
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 448; Journal Issue: 1 - 3; Journal ID: ISSN 0022-3115
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; actinides; Transmission electron microscopy; zirconium

Citation Formats

Janney, Dawn E., Madden, James W., Kennedy, J. Rory, and O'Holleran, Thomas P. Crystal structure of high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr and rare-earth elements. United States: N. p., 2014. Web. doi:10.1016/j.jnucmat.2014.01.044.
Janney, Dawn E., Madden, James W., Kennedy, J. Rory, & O'Holleran, Thomas P. Crystal structure of high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr and rare-earth elements. United States. https://doi.org/10.1016/j.jnucmat.2014.01.044
Janney, Dawn E., Madden, James W., Kennedy, J. Rory, and O'Holleran, Thomas P. 2014. "Crystal structure of high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr and rare-earth elements". United States. https://doi.org/10.1016/j.jnucmat.2014.01.044.
@article{osti_1126736,
title = {Crystal structure of high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr and rare-earth elements},
author = {Janney, Dawn E. and Madden, James W. and Kennedy, J. Rory and O'Holleran, Thomas P.},
abstractNote = {Researchers commonly observe high-Zr inclusions in actinide-Zr alloys. As there is very little published data on the crystal structures of these inclusions, it has generally been assumed that the inclusions were impurity-stabilized a-Zr. However, new electron-diffraction data from two high-Zr inclusions in an alloy containing U, Pu, Np, Am, Zr, and rare-earth elements show that these inclusions are not a-Zr (which has a hexagonal structure) but instead have a face-centered cubic structure. This data is unique in that it combines single-crystal diffraction patterns and microchemical analyses from individual inclusions. More data on other high-Zr inclusions is clearly required. However, the present results suggest that caution is needed in assuming that all high-Zr inclusions in actinide-Zr alloys are a-Zr.},
doi = {10.1016/j.jnucmat.2014.01.044},
url = {https://www.osti.gov/biblio/1126736}, journal = {Journal of Nuclear Materials},
issn = {0022-3115},
number = 1 - 3,
volume = 448,
place = {United States},
year = {Thu May 01 00:00:00 EDT 2014},
month = {Thu May 01 00:00:00 EDT 2014}
}