Review of manufacturing technologies for coated accident tolerant fuel cladding

Ko, Jaehwan; Kim, Jong Woo; Min, Hyeong Woo; Kim, Yonghee; Yoon, Young Soo

doi:10.1016/j.jnucmat.2022.153562

Cited by 40 publications

(5 citation statements)

References 97 publications

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“…The measured bulk density of the pellet samples was 2.73 ± 0.03 g/cm 3 , approximately 12% lower than that of SiC matrix (3.12 g/cm 3 ). The thermal diffusion coefficients of multi-layer samples are shown in Figure . 7 (a).…”

Section: Thermophysical Propertiesmentioning

confidence: 73%

“…After the Fukushima-Daiichi accident in 2011, increasing international efforts have been paid to the accident-tolerant fuel (ATF) with accident tolerance and inherent safety [1][2][3]. The ceramic-based coated particle dispersed fuel (CDF), with TRistructural-ISOtropic (TRISO) fuel particles dispersed in ceramic matrix, has become a candidate ATF for advanced light water reactors (LWRs) due to its excellent fission products containing capability, outstanding corrosion resistance of the matrix and high thermal conductivity [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and properties of SiC-based accident-tolerant fuel with precisely-regulated TRISO particles dispersion

Shao,

Zhao,

Feng

et al. 2024

J. Phys.: Conf. Ser.

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The ceramic-based coated particle dispersed fuel (CDF) has arrested worldwide attention as a kind of promising accident-tolerant fuel since the Fukushima-Daiichi accident in 2011. To improve safety and in-pile performance, regularly-distributed CDF was formulated. A novel fabrication method was developed to accurately target TRistructural-ISOtropic (TRISO) particles to preset positions in the SiC matrix via a self-developed precise TRISO-controlled moulding equipment. After sintering, the samples were observed by SEM and X-μCT, which showed that the TRISO particles were uniformly and regularly arranged in the SiC matrix, and were almost intact with little extrusion and breakage. The density, thermal conductivity, and thermal shock performance of the prepared samples were examined and proved to be consistent with those of the pellets with randomly-distributed TRISO particles, which could satisfy the safety requirements. Small batch manufacturing was realized and production efficiency was enhanced. This new technology offers a promising pathway to produce high-reliability ceramic-based CDF with precisely-located TRISO particles, which promote the development of advanced accident-tolerant fuels.

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Section: Thermophysical Propertiesmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Fabrication and properties of SiC-based accident-tolerant fuel with precisely-regulated TRISO particles dispersion

Shao,

Zhao,

Feng

et al. 2024

J. Phys.: Conf. Ser.

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“…Terrani (2018), Motta et al. (2015) and Ko et al. (2022) summarized previous research including three typical kinds of ATF cladding conceptions.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, a conception called accident tolerant fuel (ATF) cladding has been proposed to substitute conventional Zr-based alloys claddings. Terrani (2018), Motta et al (2015) and Ko et al (2022) summarized previous research including three typical kinds of ATF cladding conceptions.…”

Section: Introductionmentioning

confidence: 99%

Mechanical property of Pyro-Carbon coated SiC fibers fabricated by continuous chemical vapor deposition method

Zhou

et al. 2022

MMMS

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PurposeA continuous chemical vapor deposition (CVD) method has been used to fabricate pyro-carbon (PyC) coating on continuous silicon carbide (SiC) fibers. The paper aims to evaluate these coated fibers by testing filament tensile and using microstructure characterization.Design/methodology/approachThe continuous SiC fiber-reinforced SiC matrix (SiC/SiC) composite is widely studied in aerospace and nuclear applications. The PyC is the probable option in fusion and fast reactor. However, the conventional fabrication method of PyC coating has some drawbacks influencing performance and efficiency.FindingsThe results showed that PyC-coated SiC fibers with continuous CVD method are more straight than conventional ones and residual deformations could not be observed, and these PyC coatings have complete geometry and uniform thickness. In different process conditions, the thickness of PyC coating could control from ∼100 to ∼1,000 nm.Originality/valueThe coated SiC fibers in a lower gas ratio (1:7 to 1:3), lower pressure (500–1,000 Pa) and appropriate winding speed (3 to 5 rpm) have relative high filament tensile strength (∼3.5 to ∼3.9 GPa). And the strength of coated SiC fibers has a negative correlation with the measured thickness of PyC coating. A distinctive growth process was discovered in the continuous CVD method. In a certain range, the quicker growing rate of PyC is obtained in shorter deposition time which means an efficient and quality method could be applied to fabricate coatings.

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“…For example, the French companies mainly adopted high ionization-rate pulsed magnetron sputtering technology (HIPMS) [ 16 , 28 ], the Korean institute chose a 3D laser melting and coating technology (3D-LMC) [ 37 , 38 ], and the Americans applied the cold spraying technology (CS) [ 39 , 40 ]. A detailed description of these coating technologies can be found in the earlier published review papers [ 41 , 42 ]. Meanwhile, the Nuclear Power Institute of China (NPIC) prefers to use the arc ion plating (AIP) technology that also met the coating requirement.…”

Section: Introductionmentioning

confidence: 99%

An Orthogonal Experimental Study on the Preparation of Cr Coatings on Long-Size Zr Alloy Tubes by Arc Ion Plating

Chen

Wang

et al. 2022

Materials

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Cr-coated Zr alloys are widely considered the most promising accident-tolerant fuel (ATF) cladding materials for engineering applications in the near term. In this work, Cr coatings were prepared on the surfaces of 1400 mm long N36 cladding tubes using an industrial multiple arc source system. Orthogonal analyses were conducted to demonstrate the significance level of various process parameters influencing the characteristics of coatings (surface roughness, defects, crystal orientation, grain structure, etc.). The results show that the arc current mainly affects the coating deposition rate and the droplet particles on the surface or inside the coatings; however, the crystal preferred orientation and grain structure are more significantly influenced by the gas pressure and negative bias voltage, respectively. Then, the underlying mechanisms are carefully discussed. At last, a set of systemic methods to control the quality and microstructures of Cr coatings are summarized.

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Review of manufacturing technologies for coated accident tolerant fuel cladding

Cited by 40 publications

References 97 publications

Fabrication and properties of SiC-based accident-tolerant fuel with precisely-regulated TRISO particles dispersion

Fabrication and properties of SiC-based accident-tolerant fuel with precisely-regulated TRISO particles dispersion

Mechanical property of Pyro-Carbon coated SiC fibers fabricated by continuous chemical vapor deposition method

An Orthogonal Experimental Study on the Preparation of Cr Coatings on Long-Size Zr Alloy Tubes by Arc Ion Plating

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