Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets

McHugh, K. M.; Garnier, John E.; Griffith, George W.

doi:10.1115/smr2011-6584

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…Silica itself can be a precursor to synthesize silicon carbide (SiC). Due to its high melting point and excellent mechanical and thermal properties, SiC can be applied in energy, aerospace, and nuclear industries [7]. SiC is a candidate material for the coating of TRISO nuclear fuel and for the Accident Tolerant Fuel Cladding (ATFC) in Pressurized Water-cooled Reactor (PWR) to enhance the inherent safety system so that the nuclear accident such as Fukushima Daiichi accident in 2011 will not be happened anymore in the future [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of silica particles through conventional sol-gel and sonochemistry methods and the effect of catalyst, water concentration and sample environment to the particle size

Kamila

Ridwan

Akhir

et al. 2022

J. Phys.: Conf. Ser.

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Various methods have been carried out in an effort to obtain SiO2 (Silica) particles with relatively the same grain size distribution and a uniform shape. This fine Silica particle size will be useful in the formation of SiC in the next stage. In this works, Silica particles has been synthesized through two different methods: conventional sol-gel and sonochemistry (using ultrasonic probe). Silica was synthesized by mixing TEOS, ethanol, ammonia, and D.I water with the molar ratio of 1 : 75.9 : x : y respectively. In sol-gel method, x was varied with 2.85, 5.7, and 8.54 M while y was fixed at 61.6 M. In sonochemistry method, y was varied with 6.69, 12.3, and 75.9M while x was fixed at 2.85 M Additional variation of sample environment including with and without ice has also been done in sonochemistry method. Amorphous phase was found in all samples from the XRD profiles. FT-IR results showed that the IR spectral peaks of all samples match the FT-IR spectrum of SiO2 with symmetric and asymmetric stretching mode of Si-O functional groups at 802 – 810 cm−1 and 1093 – 1103 cm−1 wavenumber. SEM images indicated that the average of SiO2 particle size tends to increase with the higher amount of ammonia concentration used and lesser concentration of water used results in smaller particle size. The influence of sample environment in sonochemistry method showed an interesting phenomenon where a lot of small particles sticked with bigger particles.

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Section: Introductionmentioning

confidence: 99%

“…The properties and applications of SiC depend on the crystal structure, density, and purity [7]. For application as TRISO-coated particles in fully ceramic microencapsulated fuel, it is important to have a uniform particle size distribution in order to obtain good thermal conductivity properties [9].…”

Section: Introductionmentioning

confidence: 99%