Production and characterization of TRISO fuel particles with multilayered SiC

Seibert, Rachel; Jolly, Brian; Balooch, M.; Schappel, Danny; Terrani, Kurt A.

doi:10.1016/j.jnucmat.2018.12.024

Cited by 42 publications

(13 citation statements)

References 34 publications

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“…The precursor could directly enter the reaction zone to be decomposed owing to the unique structural design of the FB system. The composite products could quickly pass through the reaction zone by using high flow rate of the fluidizing gas 22 . Moreover, FB is a common chemical equipment, which is suitable for continuous production on a large scale.…”

Section: Resultsmentioning

confidence: 99%

Controllable synthesis of SiC@Graphene core‐shell nanoparticles via fluidized bed chemical vapor deposition

et al. 2020

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SiC@Graphene (SiC@G) core‐shell nanoparticles were successfully prepared by a facile fluidized bed (FB) chemical vapor deposition (CVD) method. SiC@G core‐shell nanoparticles with an average size of 10 nm and graphene from 1 to 5 layers with a controllable thickness were obtained by finely adjusting the experimental temperatures. The formation of SiC nanoparticles and graphene layers was confirmed by the results of X‐ray diffraction (XRD) and Raman Spectroscopy. The graphene content in SiC@G core‐shell nanoparticles prepared at different temperatures was measured from thermogravimetric analysis (TG), which varied from 5.89% to 11.88 mass%. From X‐ray photoelectron spectroscopy (XPS) results, no absorption assigned to Si‐O band was detected, indicating the effective protection of the SiC nanoparticles against oxidation by the graphene shell to resist oxidation of SiC nanoparticles. This novel method of preparation of SiC@G core‐shell nanoparticles could be applied to large‐scale production and find diverse applications in related fields.

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Section: Resultsmentioning

confidence: 99%

Controllable synthesis of SiC@Graphene core‐shell nanoparticles via fluidized bed chemical vapor deposition

et al. 2020

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“…SiC materials constitute an alternative due to their excellent thermomechanical properties, accident tolerance and resistance to irradiation [149]. Moreover, the development of TRISO particles, as alternative fuel material is of great interest [150]. Therefore, information and comprehension about the behavior of SiC materials in high temperature and high pressure water is necessary.…”

Section: The Use Of Silicon Carbide In the Nuclear Fieldmentioning

confidence: 99%

Behavior of Silicon Carbide Materials under Dry to Hydrothermal Conditions

et al. 2021

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Silicon carbide materials are excellent candidates for high-performance applications due to their outstanding thermomechanical properties and their strong corrosion resistance. SiC materials can be processed in various forms, from nanomaterials to continuous fibers. Common applications of SiC materials include the aerospace and nuclear fields, where the material is used in severely oxidative environments. Therefore, it is important to understand the kinetics of SiC oxidation and the parameters influencing them. The first part of this review focuses on the oxidation of SiC in dry air according to the Deal and Grove model showing that the oxidation behavior of SiC depends on the temperature and the time of oxidation. The oxidation rate can also be accelerated with the presence of H2O in the system due to its diffusion through the oxide scales. Therefore, wet oxidation is studied in the second part. The third part details the effect of hydrothermal media on the SiC materials that has been explained by different models, namely Yoshimura (1986), Hirayama (1989) and Allongue (1992). The last part of this review focuses on the hydrothermal corrosion of SiC materials from an application point of view and determine whether it is beneficial (manufacturing of materials) or detrimental (use of SiC in latest nuclear reactors).

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“…Research of kernel have been conducted to prepare kernel based on uranium dioxide (UO2) [1,2,3,6,7] and other materials beside UO2 such as uranium carbide (UC) [8], UCO [1,2,3,9,10], and uranium nitride (UN) [1,6]. The solution gelation technology is commonly applied for kernel fabrication [6] and consists of external gelation [11], internal gelation [11,12], and total gelation [13]. In the production of UO2 kernel based on the external gelation method, the sequence of process is established consists of uranyl nitrate preparation, broth preparation, casting, aging, washing, drying, calcining, reducing and sintering process [13].…”

Section: Highmentioning

confidence: 99%

The Conceptual Design for Liquid Effluent Treatment of Uo2 Kernel Fabrication

Yusnitha

Kadarjono²,

Sartono³

et al. 2020

urania

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THE CONCEPTUAL DESIGN FOR LIQUID EFFLUENT TREATMENT OF UO2 KERNEL FABRICATION. The pebble fuel for HTGR is prepared through fabrication of UO2 kernel, coated particle and spherical element fuel. In the fabrication of UO2 kernel by external gelation method, a multicomponent of liquid effluent is generated. Therefore, the liquid effluent is required to be treated for safety reason before disposed to waste storage. In this paper, the conceptual design for the liquid effluent treatment of UO2 kernel fabrication is performed with the simulation process using CHEMCAD software. CHEMCAD is a software that can be utilized for chemical process design. The results showed that the proposed conceptual design is able to separate valuable components: isopropyl alcohol (IPA) and tetrahydrofurfuryl alcohol (THFA). The flowrate of IPA product is 5.28 kg/h with purity of 0.99 in mass fraction and the flowrate of THFA product is 1.01 kg/h with purity of 0.99 in mass fraction.Keywords: liquid effluent, UO2 kernel, CHEMCAD, HTGR.

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Production and characterization of TRISO fuel particles with multilayered SiC

Cited by 42 publications

References 34 publications

Controllable synthesis of SiC@Graphene core‐shell nanoparticles via fluidized bed chemical vapor deposition

Controllable synthesis of SiC@Graphene core‐shell nanoparticles via fluidized bed chemical vapor deposition

Behavior of Silicon Carbide Materials under Dry to Hydrothermal Conditions

The Conceptual Design for Liquid Effluent Treatment of Uo2 Kernel Fabrication

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