Acknowledgement
The experiments were conducted thanks to the collaboration with Dr. Michael A. Futterer (European Commission - Joint Research Center). We gladly acknowledge his invaluable support.
References
- NGNP, Fuel Qualification White Paper, INL, INL/EXT-10-17686, 2010.
- High Temperature, High Temperature Gas Cooled Reactor Fuels and Materials, IAEA-TECDOC-1645, 2010.
- A. Sowder, C. Marciulescu, Uranium Oxycarbide (UCO) Tristructural Isotropic (TRISO) Coated Particle Fuel Performance, Topical Report EPRI-AR-1 (NP), Technical Report, 2019.
- K. Verfondern, H. Nabielek, M.J. Kania, H.J. Allelein, High-Quality Thorium TRISO Fuel Performance in HTGRs, Forschungszentrum Juelich, 2013.
- P.A. Demkowicz, B. Liu, J.D. Hunn, Coated particle fuel: historical perspectives and current progress, J. Nucl. Mater. 515 (2019) 434-450. https://doi.org/10.1016/j.jnucmat.2018.09.044
- P.A. Demkowicz, D. Marshall, J. Palmer, G. Hawkes, J. Sterbentz, TRISO fuel experience and capabilities in the DOE advanced gas reactor program, ART INL, in: GAIN-EPRI-NEI Advanced Fuels Workshop March 5-6, Boise State University, 2019.
- J. Wang, An Integrated Performance Model for High Temperature Gas Cooled Reactor Coated Particle Fuel, Massachusetts Institute of Technology, 2004.
- G.W. Helmreich, J.D. Hunn, J.W. McMurray, R.D. Hunt, B.C. Jolly, M.P. Trammell, D.R. Brown, B.J. Blamer, T.J. Reif, H.T. Kim, Year One Summary of X-Energy Pebble Fuel Development at ORNL, ORNL/TM-2017/337, 2017.
- H.X. Xu, J. Lin, J.J. Li, Z.Y. Zhu, G.L. Zeng, J.D. Liu, B.C. Gu, B. Liu, Characterization the microstructure and defects of matrix graphite irradiated with Xe ions, Nucl. Instrum. Methods Phys. Res. B 406 (2017) 638-642. https://doi.org/10.1016/j.nimb.2017.03.159
- E.S. Kim, Y.W. Kim, Characterization of 3 MeV H+ irradiation induced defects in nuclear grade graphite, Solid State Commun. 150 (2010) 1633-1636. https://doi.org/10.1016/j.ssc.2010.06.036
- L.P. Rodriguez Garcia, D.M. Perez, C.R. Garcia Hernandez, D.E. Milian Lorenzo, C.A. Brayner de Oliveira Lira, Development of a Methodology for the Evaluation of the Thermomechanical Behavior of the TRISO Fuel, INAC, 2017.
- H.J. Sarmah, D. Mohanta, Emergence of Raman active D- band and unusually suppressed conductivity mediated by nanoscale defects in pencil-lead graphitic systems under 80 keV Xe+ ion irradiation, Nucl. Instrum. Methods Phys. Res. B 463 (2020) 1-6. https://doi.org/10.1016/j.nimb.2019.11.018
- D. Helary, O. Dugne, X. Bourrat, Advanced characterization techniques for SiC and PyC coatings on high-temperature reactor fuel particles, J. Nucl. Mater. 373 (2008) 150-156. https://doi.org/10.1016/j.jnucmat.2007.05.041
- G. Zheng, P. Xu, K. Sridharan, T. Allen, Characterization of structural defects in nuclear graphite IG-110 and NBG-18, J. Nucl. Mater. 446 (2014) 193-199. https://doi.org/10.1016/j.jnucmat.2013.12.013
- C.M. Efaw, J.L. Vandegrift, M. Reynolds, S. McMurdie, B.J. Jaques, H. Hu, H. Xiong, M.F. Hurley, Characterization of zirconium oxides part I: Raman mapping and spectral feature analysis, Nucl. Mater. Energy 21 (2019) 100707. https://doi.org/10.1016/j.nme.2019.100707
- P. B Arberis, T. Merle-Mejean, P. Quintard, On Raman spectroscopy of zirconium oxide films, J. Nucl. Mater. 246 (1997) 232-243. https://doi.org/10.1016/S0022-3115(97)00038-X
- H. Wu, R. Gakhar, A. Chen, S. Lam, C.P. Marshall, R.O. Scarlat, Comparative analysis of microstructure and reactive sites for nuclear graphite IG-110 and graphite matrix A3, J. Nucl. Mater. 528 (2020) 151802. https://doi.org/10.1016/j.jnucmat.2019.151802
- O.A. Maslova, M.R. Ammar, G. Guimbretiere, J.N. Rouzaud, P. Simon, Determination of crystallite size in polished graphitized carbon by Raman spectroscopy, Phys. Rev. B 86 (2012) 134205. https://doi.org/10.1103/physrevb.86.134205
- M.R. Ammar, N. Galy, J.N. Rouzaud, N. Toulhoat, C.E. Vaudey, P. Simon, N. Moncoffre, Characterizing various types of defects in nuclear graphite using Raman scattering: heat treatment, ion irradiation and polishing, Carbon 95 (2015) 364-373. https://doi.org/10.1016/j.carbon.2015.07.095
- M. Couzi, J.-L. Bruneel, D. Talaga, L. Bokobza, A multi wavelength Raman scattering study of defective graphitic carbon materials: the first order Raman spectra revisited, Carbon 107 (2016) 388-394. https://doi.org/10.1016/j.carbon.2016.06.017