The Use of Carbon to Improve the Pressureless Sintering of Uranium Diboride

J. Turner; M.j.j. Schmidt; T.j. Abram

doi:10.1016/j.jnucmat.2022.153581

The Use of Carbon to Improve the Pressureless Sintering of Uranium Diboride

J. Turner, M.j.j. Schmidt, T.j. Abram

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Abstract

Samples of uranium diboride were sintered in inert, reducing and vacuum conditions with and without the addition of powdered carbon to green pellets. Carbon has been shown to improve the sintering of diboride materials via the formation of gaseous phases at lower temperatures than those at which grain coarsening occurs. The addition of 0.5 wt% carbon was seen to improve sample density in both vacuum and reducing conditions, while an increase in carbon content to 1 wt% carbon decreased the density achieved in reducing atmosphere and had a negligible effect in vacuum.

Keywords: Nuclear, Fuel, Uranium, High Density Fuels

Original language	English
Pages (from-to)	153581
Journal	Journal of Nuclear Materials
Early online date	18 Feb 2022
DOIs	https://doi.org/10.1016/j.jnucmat.2022.153581
Publication status	Published - 18 Feb 2022

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10.1016/j.jnucmat.2022.153581

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https://linkinghub.elsevier.com/retrieve/pii/S0022311522000770

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abstract = "Samples of uranium diboride were sintered in inert, reducing and vacuum conditions with and without the addition of powdered carbon to green pellets. Carbon has been shown to improve the sintering of diboride materials via the formation of gaseous phases at lower temperatures than those at which grain coarsening occurs. The addition of 0.5 wt% carbon was seen to improve sample density in both vacuum and reducing conditions, while an increase in carbon content to 1 wt% carbon decreased the density achieved in reducing atmosphere and had a negligible effect in vacuum.Keywords: Nuclear, Fuel, Uranium, High Density Fuels",

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N2 - Samples of uranium diboride were sintered in inert, reducing and vacuum conditions with and without the addition of powdered carbon to green pellets. Carbon has been shown to improve the sintering of diboride materials via the formation of gaseous phases at lower temperatures than those at which grain coarsening occurs. The addition of 0.5 wt% carbon was seen to improve sample density in both vacuum and reducing conditions, while an increase in carbon content to 1 wt% carbon decreased the density achieved in reducing atmosphere and had a negligible effect in vacuum.Keywords: Nuclear, Fuel, Uranium, High Density Fuels

AB - Samples of uranium diboride were sintered in inert, reducing and vacuum conditions with and without the addition of powdered carbon to green pellets. Carbon has been shown to improve the sintering of diboride materials via the formation of gaseous phases at lower temperatures than those at which grain coarsening occurs. The addition of 0.5 wt% carbon was seen to improve sample density in both vacuum and reducing conditions, while an increase in carbon content to 1 wt% carbon decreased the density achieved in reducing atmosphere and had a negligible effect in vacuum.Keywords: Nuclear, Fuel, Uranium, High Density Fuels

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The Use of Carbon to Improve the Pressureless Sintering of Uranium Diboride

Abstract

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