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Fabrication and microstructural analysis of UN-U3Si2 composites for accident tolerant fuel applications
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
2016 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 477, 18-23 p.Article in journal (Refereed) PublishedText
Abstract [en]

In this study, U3Si2 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-U3Si2 composite, with desirable microstructural characteristics for accident tolerant fuel applications.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 477, 18-23 p.
Keyword [en]
Nuclear fuel, Accident tolerant fuel, Uranium nitride, Uranium silicide, SPS, U-N-Si system
National Category
Mineral and Mine Engineering
Identifiers
URN: urn:nbn:se:kth:diva-189348DOI: 10.1016/j.jnucmat.2016.05.004ISI: 000377327000002ScopusID: 2-s2.0-84966271209OAI: oai:DiVA.org:kth-189348DiVA: diva2:947256
Note

QC 20160707

Available from: 2016-07-07 Created: 2016-07-04 Last updated: 2016-07-07Bibliographically approved

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Johnson, Kyle D.Raftery, Alicia M.Lopes, Denise AdornoWallenius, Janne
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