The use of gadolinium as a burnable poison within U3Si2 fuel pellets

Joel Turner; James Buckley; G Philips; Timothy Abram

doi:10.1016/j.jnucmat.2018.06.044

The use of gadolinium as a burnable poison within U₃Si₂ fuel pellets

Joel Turner, James Buckley, G Philips, Timothy Abram

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Abstract

Gadolinium was mixed with uranium silicide in order to investigate the potential for its use as a burnable poison with a future Accident Tolerant Fuel (ATF) system. Three methods of manufacture were investigated, including two arc melting methods and powder blending. All methods failed to produce structurally robust pellets and were seen to produce inhomogeneous material consisting of multiple silicide phases. Of particular concern was the observation of uranium metal and (U,Gd)O2 phases within the final material.

Original language	English
Pages (from-to)	204-211
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	509
Early online date	2 Jul 2018
DOIs	https://doi.org/10.1016/j.jnucmat.2018.06.044
Publication status	Published - Oct 2018

Keywords

Nuclear
Accident Tolerant Fuel
Burnable Poison

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10.1016/j.jnucmat.2018.06.044

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Cite this

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title = "The use of gadolinium as a burnable poison within U3Si2 fuel pellets",

abstract = "Gadolinium was mixed with uranium silicide in order to investigate the potential for its use as a burnable poison with a future Accident Tolerant Fuel (ATF) system. Three methods of manufacture were investigated, including two arc melting methods and powder blending. All methods failed to produce structurally robust pellets and were seen to produce inhomogeneous material consisting of multiple silicide phases. Of particular concern was the observation of uranium metal and (U,Gd)O2 phases within the final material.",

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KW - Burnable Poison

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