journal article·2016-08

Fabrication and microstructural analysis of UN-U3Si2 composites for accident tolerant fuel applications

Kyle D. Johnson, Alicia M. Raftery, Denise Adorno Lopes, Janne Wallenius

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Abstract

In this study, U 3Si 2 was synthesized via the use of arc-melting and mixed with UN powders, which together were sintered using the SPS method. The study revealed a number of interesting conclusions regarding the stability of the system – namely the formation of a probable but as yet unidentified ternary phase coupled with the reduction of the stoichiometry in the nitride phase – as well as some insights into the mechanics of the sintering process itself. By milling the silicide powders and reducing its particle size ratio compared to UN, it was possible to form a high density UN-U 3Si 2 composite, with desirable microstructural characteristics for accident tolerant fuel applications.
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Research context

OpenAlex topics: Nuclear Materials and Properties · Nuclear reactor physics and engineering · Radioactive element chemistry and processing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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