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Title: Pore growth in U-Mo/Al dispersion fuel

Abstract

U-Mo/Al dispersion fuel is currently under development in the DOE’s Material Management and Minimization program to convert HEU-fueled research reactors to LEU-fueled reactors. In some demanding conditions in high-power and high-performance reactors, large pores form in the interaction layers between the U-Mo fuel particles and the Al matrix, which pose a potential to cause fuel failure. In this study, comprehension of the formation and growth of these pores was explored. As a product, a model to predict pore growth and porosity increase was developed. Well-characterized in-pile data from reduced-size plates were used to fit the model parameters. A data set of full-sized plates, independent and distinctively different from those used to fit the model parameters, was used to examine the accuracy of the model.

Authors:
; ORCiD logo; ; ORCiD logo
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1391727
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Nuclear Materials; Journal Volume: 478; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
in-pile data; modeling; pore growth; U-Mo/Al dispersion fuel; porosity

Citation Formats

Kim, Yeon Soo, Jeong, G. Y., Sohn, D. -S., and Jamison, L. M. Pore growth in U-Mo/Al dispersion fuel. United States: N. p., 2016. Web. doi:10.1016/j.jnucmat.2016.06.029.
Kim, Yeon Soo, Jeong, G. Y., Sohn, D. -S., & Jamison, L. M. Pore growth in U-Mo/Al dispersion fuel. United States. doi:10.1016/j.jnucmat.2016.06.029.
Kim, Yeon Soo, Jeong, G. Y., Sohn, D. -S., and Jamison, L. M. 2016. "Pore growth in U-Mo/Al dispersion fuel". United States. doi:10.1016/j.jnucmat.2016.06.029.
@article{osti_1391727,
title = {Pore growth in U-Mo/Al dispersion fuel},
author = {Kim, Yeon Soo and Jeong, G. Y. and Sohn, D. -S. and Jamison, L. M.},
abstractNote = {U-Mo/Al dispersion fuel is currently under development in the DOE’s Material Management and Minimization program to convert HEU-fueled research reactors to LEU-fueled reactors. In some demanding conditions in high-power and high-performance reactors, large pores form in the interaction layers between the U-Mo fuel particles and the Al matrix, which pose a potential to cause fuel failure. In this study, comprehension of the formation and growth of these pores was explored. As a product, a model to predict pore growth and porosity increase was developed. Well-characterized in-pile data from reduced-size plates were used to fit the model parameters. A data set of full-sized plates, independent and distinctively different from those used to fit the model parameters, was used to examine the accuracy of the model.},
doi = {10.1016/j.jnucmat.2016.06.029},
journal = {Journal of Nuclear Materials},
number = C,
volume = 478,
place = {United States},
year = 2016,
month = 9
}