Fission gas swelling of refractory nuclear fuels

Chubb, W.; Hilbert, R.F.; Storhok, V.W.; Keller, D.L.

doi:10.1016/0025-5416(72)90045-6

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…For use as IMF, ZrN materials must possess exceptional anti-irradiation properties; consequently, highly dense ZrN materials are of essential interest [ 17 ]. ZrN has been examined as a nuclear fuel in nitride fuels, such as (Pu, Zr)N and (U, Zr)N. Research has shown that mixed nitride fuels containing ZrN, exhibit a better swelling attitude and reduce the interaction between nitride fuel and cladding [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Combustion Synthesis of High Density ZrN/ZrSi2 Composite: Influence of ZrO2 Addition on the Microstructure and Mechanical Properties

et al. 2022

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In this study, a high-density ZrN/ZrSi2 composite reinforced with ZrO2 as an inert phase was synthesized under vacuum starting with a Zr-Si4N3-ZrO2 blend using combustion-synthesis methodology accompanied by compaction. The effects of ZrO2 additions (10–30 wt%) and compression loads (117–327 MPa) on the microstructure, porosity and hardness of the samples were studied. The process was monitored using XRD, SEM, EDS, porosity, density and hardness measurements. Thermodynamic calculations of the effect of ZrO2 addition on the combustion reaction were performed including the calculation of the adiabatic temperatures and the estimation of the fractions of the liquid phase. The addition of up to 20 wt% ZrO2 improved the hardness and reduced the porosity of the samples. Using 20 wt% ZrO2, the sample porosity was reduced to 1.66 vol%, and the sample hardness was improved to 1165 ± 40.5 HV at 234 MPa.

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Section: Introductionmentioning

confidence: 99%

Combustion Synthesis of High Density ZrN/ZrSi2 Composite: Influence of ZrO2 Addition on the Microstructure and Mechanical Properties

et al. 2022

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“…All these events are detrimental to the fuel performance and could result in cladding failures. 6,35,36 Due to local density fluctuations, amorphous materials tend to incorporate more gas atoms than a crystalline material, which reduces gas bubble formation. An early study showed excellent swelling resistance in SiOC implanted with He ions.…”

Section: Introductionmentioning

confidence: 99%

“…When bubbles escape to the plenum region, they exert pressure on the fuel pins. All these events are detrimental to the fuel performance and could result in cladding failures 6,35,36 . Due to local density fluctuations, amorphous materials tend to incorporate more gas atoms than a crystalline material, which reduces gas bubble formation.…”

Section: Introductionmentioning

confidence: 99%

Kr ion irradiation study of polymer‐derived SiFeOC–C–SiC nanocomposite

Singh

Shao

2022

J Am Ceram Soc.

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This study focuses on the pyrolysis and ion irradiation behaviors of polymer‐derived SiFeOC–C–SiC ceramic. The pyrolyzed material is composed of SiO2 and SiOC (amorphous), carbon (amorphous and turbostratic), and Fe3Si and β‐SiC (nanocrystalline). Irradiation was carried out at both room temperature and 600°C using 400 keV Kr ions with fluences of 4 × 1015 and 1 × 1016 ions cm−2, respectively. The Fe3Si and SiC nanocrystals are stable against irradiation up to 3 displacement per atom (dpa) at room temperature and up to 12 dpa at 600°C. The SiOC tetrahedrals show phase separation and minor carbothermal reduction. The high irradiation resistance and the dense, defect‐free amorphous microstructure of SiFeOC–C–SiC after prolonged irradiation demonstrate its great potential for advanced nuclear reactor applications.

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