Defect Production, Diffusion and Precipitation in Ion-implanted Energy Materials
EMSL Project ID
49576
Abstract
As a candidate material for fusion reactor applications, silicon carbide (SiC) undergoes transmutation reactions under high-energy neutron irradiation with magnesium as the major metallic transmutant; the others include aluminum, beryllium and phosphorus in addition to helium and hydrogen gaseous species. The impact of these transmutants on SiC structural stability is currently unknown. The experimental studies will focus on the scientific issues associated with microstructures and precipitates of the energy materials under extreme conditions (high radiation and high temperature). Ion implantation will be performed in collaboration with external institutions as an accelerated aging approach to simulate the irradiated microstructure and introduce transmutants or their surrogates in the structure for study. The work scope of this study will include ion-beam irradiation induced disordering processes in SiC, microstructural evolution, thermal and dynamic recoveries of defects, roles of interfaces, trapping and clustering of defects and implanted species, atomic diffusion and mass transport, precipitation of fusion transmutants or their surrogates, and relationship between structure and property. In FY17, we will include tungsten single crystals as a study material. The primary objective of this research is to advance the fundamental understanding of irradiation effects on the microstructures and physical/chemical properties of fusion materials. The research is aligned with the US national strategic plan for clean and sustainable energy and supports DOE/OBER and EMSL missions for discovery of novel energy materials and technological innovation for protection of environments.
Project Details
Start Date
2016-10-06
End Date
2017-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Related Publications
Jiang W, J Zhang, DJ Edwards, NR Overman, Z Zhu, L Price, J Gigax, E Castanon, L Shao, and DJ Senor. 2017. "Nanostructural Evolution and Behavior of H and Li in Ion-Implanted Gamma-LiAlO2." Journal of Nuclear Materials 494:411-421. doi:10.1016/j.jnucmat.2017.07.048
Jiang W, J Zhang, L Kovarik, Z Zhu, L Price, J Gigax, E Castanon, X Wang, L Shao, and DJ Senor. 2017. "Irradiation effects and hydrogen behavior in H2+ and He+ implanted gamma-LiAlO2 single crystals." Journal of Nuclear Materials 484:374-381. doi:10.1016/j.jnucmat.2016.03.014
Jiang W, K Kruska, CH Henager, Jr, and RJ Kurtz. 2017. "PROGRESS IN THE STUDY OF ION IRRADIATION IN TUNGSTEN." Chapter 4. 5 in Fusion Materials Semianual Progress Report For Period Ending December 31, 2016, vol. DOE-ER-0313/61, ed. D Clark, pp. 115-119. Oak Ridge National Laboratory, Oak Ridge, TN.
Jiang W., M.A. Conroy, K. Kruska, M.J. Olszta, T.C. Droubay, J.M. Schwantes, and C.A. Taylor, et al. 2019. "In situ Study of Particle Precipitation in Metal-doped CeO2 during Thermal Treatment and Ion Irradiation for Emulation of Irradiating Fuels." Journal of Physical Chemistry C 123, no. 4:2591-2601. PNNL-SA-139442. doi:10.1021/acs.jpcc.8b11027
Jiang W, MA Conroy, K Kruska, NR Overman, TC Droubay, R Devanathan, J Gigax, and L Shao. 2017. "Nanoparticle Precipitation in Irradiated and Annealed Ceria Doped with Metals for Emulation of Spent Fuels." Journal of Physical Chemistry C. doi:10.1021/acs.jpcc.7b06188
Jiang W., S.R. Spurgeon, J. Liu, D.K. Schreiber, H. Jung, A. Devaraj, and D.J. Edwards, et al. 2018. "Precipitates and voids in cubic silicon carbide implanted with 25Mg+ ions." Journal of Nuclear Materials 498. PNNL-SA-124406. doi:10.1016/j.jnucmat.2017.10.046
Jiang W., S.R. Spurgeon, Z. Zhu, X. Yu, K. Kruska, T. Wang, and J.G. Gigax, et al. 2018. "Chemical imaging and diffusion of hydrogen and lithium in lithium aluminate." Journal of Nuclear Materials 511. PNNL-SA-134630. doi:10.1016/j.jnucmat.2018.08.057
Zhang L, W Jiang, RC Fadanelli Filho, W Ai, J Peng, T Wang, and C Zhang. 2016. "Microstructural response of InGaN to swift heavy ion irradiation." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 388:30-34. doi:10.1016/j.nimb.2016.10.035
Zhang L., W. Jiang, W. Ai, L. Chen, and T. Wang. 2018. "Ion irradiation induced nucleation and growth of nanoparticles in amorphous silicon carbide at elevated temperatures." Journal of Nuclear Materials 505. PNNL-SA-130017. doi:10.1016/j.jnucmat.2018.04.005
Zhang L., W. Jiang, W. Ai, L. Chen, C. Pan, and T. Wang. 2019. "Grain size variation in nanocrystalline silicon carbide irradiated at elevated temperatures." Journal of the American Ceramic Society 102, no. 1:448-455. PNNL-SA-133139. doi:10.1111/jace.15895