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Fe-based nanoparticles and their applications in Nano-Nuclear Technology.

Keywords: Magnetic properties, Reduction, Irradiation, Agglomeration.

Degradation of materials due to constant exposure of radiation and high temperatures has been a constant challenge for the current generation of nuclear reactors. Through Nano-Nuclear Technology, latest engineered-nano-materials are used for improving the nuclear power performances and safety. We investigate the radiation behavior of Fe-based nanoparticles by studying the structural, magnetic and electrical properties before and after irradiation. Fully oxidized Fe nanoparticles like [Fe.sub.3][O.sub.4] and FeO have been found to alter the radiation effects and enhance radiation resistance. These iron oxide particles could be good candidates for studying the dispersion strengthening phenomena in nuclear materials as it promotes grain boundaries and interfacial effects. Moreover, Fe-based core-shell nanoclusters (NCs) with core as Fe and shell as [Fe.sub.3][O.sub.4] and core as Fe and shell as [Fe.sub.3][O.sub.4]/[Fe.sub.3]N have provided some interesting reduction behavior and unique magnetic property changes under irradiation. These core-shell nanomaterials and their unique behaviors could provide promising applications in the future generation nuclear reactors as sensors and monitors.

Jennifer A. Sundararajan (1), Maninder Kaur (1), William Armour (1), Cory Ytsma (1), W. Jiang (2), John S. McCloy (2), and Y. Qiang (1)

(1) Department of Physics, University of Idaho, Moscow, ID 83844. Pacific Northwest National Laboratory, PO. Box 999, Richland, WA 99352.

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Author:Sundararajan, Jennifer A.; Kaur, Maninder; Armour, William; Ytsma, Cory; Jiang, W.; McCloy, John S.;
Publication:Journal of the Idaho Academy of Science
Article Type:Report
Date:Dec 1, 2014
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