Oxidation behavior of SiC layer of TRISO particles with the presence of NaF
Source abstract
Abstract
In the present work, the oxidation behavior of the SiC layer of TRISO particles in NaF salt at concentrations of 0.2–2 % and at temperatures ranging between 800 and 1400 °C was studied. The results showed that the oxidation rate was accelerated with the increase in temperature and fluoride concentration, while the effect of fluoride concentration on oxidation rate was much greater than that of the temperature. This could be due to the reaction of fluoride with SiC/SiO 2 and the dissolution of silicon oxide by the alkaline silicate formed during the oxidation process, which accelerated the diffusion of oxygen.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Magnesium Oxide Properties and Applications · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Materials for future nuclear energy systems10.1016/j.jnucmat.2019.151837 ↗
2. The fixed bed nuclear reactor concept10.1016/j.enconman.2007.12.017 ↗
3. The molten salt reactor (MSR) in generation IV: Overview and perspectives10.1016/j.pnucene.2014.02.014 ↗
4. Microencapsulated fuel technology for commercial light water and advanced reactor application10.1016/j.jnucmat.2012.05.021 ↗
5. D.L. Hanson, A Review of Radionuclide Release from HTGR Cores during Normal Operation, Report 1009382, Electric Power Research Institute, 2004. 〈http://refhub.elsevier.com/S0022-3115(18)31198-X/sref4〉.
6. Handbook of SiC properties for fuel performance modeling10.1016/j.jnucmat.2007.05.016 ↗
7. Mechanical characteristics of SiC coating layer in TRISO fuel particles10.1016/j.jnucmat.2013.08.041 ↗
8. Evaluation of the mechanical performance of silicon carbide in TRISO fuel at high temperatures10.1016/j.nucengdes.2016.05.040 ↗
9. Oxide evolution on the SiC layer of TRISO particles during extended air oxidation10.1016/j.jnucmat.2021.153385 ↗
10. Evaluation of oxidation performance of TRISO fuel particles for postulated air-ingress accident of HTGR
11. Effect of hydrothermal corrosion on the fracture strength of SiC layer in TRISO fuel particles10.1111/jace.16369 ↗
12. Hydrothermal corrosion of SiC in LWR coolant environments in the absence of irradiation10.1016/j.jnucmat.2015.06.019 ↗
13. The molten salt reactor (MSR) in generation IV: overview and perspectives10.1016/j.pnucene.2014.02.014 ↗
14. Experimental study on the vibration behavior of the pebble bed in PB-FHR10.1016/j.anucene.2019.107193 ↗
15. High temperature oxidation behavior of SiC coating in TRISO coated particles10.1016/j.jnucmat.2014.06.055 ↗
16. The oxidation behavior of multi-layered SiC coated graphite in water vapor containing environment10.1016/j.corsci.2021.110025 ↗
17. High temperature steam oxidation of SiC coating layer of TRISO fuel particles10.1016/j.jnucmat.2015.02.022 ↗
18. Accelerated oxidation and microstructure evolution of SiC in the presence of NaF10.1016/j.jnucmat.2020.152560 ↗
19. Research and development of fuel element for Chinese 10 MW high temperature gas-cooled reactor10.1080/18811248.2000.9714959 ↗
20. Theoretical analysis of the diffusion processes determining the oxidation rate of alloys10.1149/1.2779605 ↗
21. Carbon interlayer between CVD SiC and SiO2 in high-temperature passive oxidation10.1111/jace.12833 ↗
22. Synthesis of ultra-thin carbon layers on SiC substrate by ion implantation10.1016/j.carbon.2015.05.046 ↗
23. Influence of surface structure of SiC nano-sized powder analyzed by X-ray photoelectron spectroscopy on basic powder characteristics10.1016/j.apsusc.2007.06.023 ↗
24. XPS study of transition metal doped silicate glasses10.1016/S0368-2048(98)00450-2 ↗
25. X-ray photoelectron spectroscopy of CeO2–Na2O–SiO2 glasses10.1016/j.elspec.2004.09.001 ↗
26. Interaction between SiO2 and a KF–KCl–K2SiF6 Melt10.1021/jp4086816 ↗
27. Tight-binding quantum chemical molecular dynamics simulations for the elucidation of chemical reaction dynamics in SiC etching with SF6/O2 plasma10.1039/C5CP06515A ↗
28. Reactive ion etching of silicon carbide in SF6 gas: Detection of CF, CF2, and SiF2 etch products10.1063/1.1395520 ↗
29. Fluoroacidity evaluation in molten salts10.1016/j.electacta.2011.03.099 ↗
30. Novel electrochemical method of SiH4 synthesis in molten LiCl-KCl Systems, Part I: reaction mechanism and an approach to a continuous SiH4 evolution10.5796/electrochemistry.73.692 ↗
31. Corrosion of silicon based ceramics in combustion environments10.1111/j.1151-2916.1993.tb03684.x ↗
32. Hot-corrosion behaviour of silica and silica-formers: external versus internal control10.1016/S0955-2219(98)00243-X ↗
33. Synergistic effects of water vapor and alkali chloride vapors on the high-temperature corrosion of SiC-based ceramics10.1111/j.1151-2916.2003.tb03465.x ↗
34. Reactions between sodium and silica during gasification of a low-rank coal10.1016/j.fuproc.2005.06.007 ↗