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1. Winter, Thomas Christopher. Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂.

Degree: MS, Mechanical Engineering, 2016, Georgia Tech

Theoretical models are used in support of the I2S-LWR (Integral Inherently Safe LWR) project for a direct comparison of fuel swelling and fission gas bubble formation between U₃Si₂ and UO₂ fuels. Uranium silicide is evaluated using a model developed by Dr. J. Rest with the fuel in a amorphous state. The uranium dioxide is examined with two separate models developed using a number of papers. One model calculates the swelling behavior with a fixed grain radius while the second incorporates grain growth into the model. Uranium silicide rapidly becomes amorphous under irradiation. The different mechanisms controlling the swelling of the fuels are introduced including the knee point caused by the amorphous state for the U₃Si₂. The outputs of each model are used to compare the fuels. Advisors/Committee Members: Deo, Chaitanya (advisor), Petrovic, Bojan (committee member), Singh, Preet (committee member).

Subjects/Keywords: Fission gas swelling; Fuel swelling; Uranium silicide; Nuclear fuel swelling; Fission gas evolution; Swelling model; Nuclear fuel

…coarsened. The rate equations to describe the time evolution of the fission gas in an amorphous… …U3 Si2 Fission Gas Evolution Over time the bubbles in the amorphous U3 Si2 grow and have a… …3.2 3.2.1 UO2 Fixed Grain UO2 Fission Gas Evolution Figure 12 shows the fractional… …of fuel swelling and fission gas bubble formation between U3 Si2 and UO2 fuels. Uranium… …allow for a direct comparison between fuels. More specifically, fuel swelling and fission gas… 

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Winter, T. C. (2016). Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/54991

Chicago Manual of Style (16th Edition):

Winter, Thomas Christopher. “Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂.” 2016. Masters Thesis, Georgia Tech. Accessed April 22, 2019. http://hdl.handle.net/1853/54991.

MLA Handbook (7th Edition):

Winter, Thomas Christopher. “Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂.” 2016. Web. 22 Apr 2019.

Vancouver:

Winter TC. Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂. [Internet] [Masters thesis]. Georgia Tech; 2016. [cited 2019 Apr 22]. Available from: http://hdl.handle.net/1853/54991.

Council of Science Editors:

Winter TC. Comparison of fission gas swelling models for amorphous u₃si₂ and crystalline uo₂. [Masters Thesis]. Georgia Tech; 2016. Available from: http://hdl.handle.net/1853/54991

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