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Dive into the research topics where Rita E. Hoggan is active.

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Featured researches published by Rita E. Hoggan.


Environmental Degradation of Materials in Nuclear Power Systems | 2017

Interdiffusion Behavior of FeCrAl with U 3 Si 2

Rita E. Hoggan; Lingfeng He; Jason M. Harp

Advanced steels, including FeCrAl are being considered as an alternative to the standard light water fuel (LWR) cladding, Zircalloy. FeCrAl has superior mechanical and thermal properties and oxidation resistance relative to the Zircalloy standard . Uranium Silicide (U3Si2) is a candidate to replace uranium oxide (UO2) as LWR fuel because of its higher thermal conductivity and higher fissile density relative to the current standard, UO2. The interdiffusion behavior between FeCrAl and U3Si2 is investigated in this study. Commercially available FeCrAl, along with pellets fabricated at the Idaho National Laboratory were placed in diffusion couples. Individual tests have been run at temperatures ranging from 500 ℃ to 1000 ℃ for 30 h and 100 h. The interdiffusion is analyzed with an optical microscope and scanning electron microscope (SEM). Uniform and planar diffusion regions along the material interface are illustrated with backscatter electron micrographs and energy-dispersive X-ray spectroscopy (EDS).


Journal of Nuclear Materials | 2015

Uranium silicide pellet fabrication by powder metallurgy for accident tolerant fuel evaluation and irradiation

Jason M. Harp; Paul A. Lessing; Rita E. Hoggan


Journal of Nuclear Materials | 2017

Microstructure studies of interdiffusion behavior of U3Si2/Zircaloy-4 at 800 and 1000 °C

Lingfeng He; Jason M. Harp; Rita E. Hoggan; Adrian R. Wagner


JOM | 2018

Effect of High Si Content on U3Si2 Fuel Microstructure

Jhonathan Rosales; Isabella J. van Rooyen; Subhashish Meher; Rita E. Hoggan; C.J. Parga; Jason M. Harp


Journal of Nuclear Materials | 2017

TEMPORARY REMOVAL: Interdiffusion behavior of U 3 Si 2 with FeCrAl via diffusion couple studies

Rita E. Hoggan; Lingfeng He; Jason M. Harp


Journal of Nuclear Materials | 2016

Processing of surrogate nuclear fuel pellets for better dimensional control with dry bag isostatic pressing

Rita E. Hoggan; Larry D. Zuck; W. Roger Cannon; Paul A. Lessing


Archive | 2018

Grain Size and Phase Purity Characterization of U 3 Si 2 Pellet Fuel

Rita E. Hoggan; Kevin R. Tolman; Fabiola Cappia; Adrian R. Wagner; Jason M. Harp


Journal of the American Ceramic Society | 2018

Hydrothermal synthesis of silicon oxide clad uranium oxide nanowires

Lingfeng He; Jason M. Harp; Adrian R. Wagner; Rita E. Hoggan; Kevin R. Tolman


Journal of Nuclear Materials | 2018

Grain size and phase purity characterization of U3Si2 fuel pellets

Rita E. Hoggan; Kevin R. Tolman; Fabiola Cappia; Adrian R. Wagner; Jason M. Harp


Journal of Nuclear Materials | 2018

Erratum to Interdiffusion Behavior of U 3 Si 2 with FeCrAl via Diffusion Couple Studies J. Nucl. Mater. 502 (2018) 356–369

Rita E. Hoggan; Lingfeng He; Jason M. Harp

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Jason M. Harp

Idaho National Laboratory

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Lingfeng He

Idaho National Laboratory

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Kevin R. Tolman

Idaho National Laboratory

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Paul A. Lessing

Idaho National Laboratory

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W. Roger Cannon

Idaho National Laboratory

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C.J. Parga

Idaho National Laboratory

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