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Volume 6
Research & Reviews: Journal of Material Sciences
ISSN: 2321-6212
Materials Physics 2018
August 16-17, 2018
August 16-17, 2018 | London, UK
4
th
International Conference on
Condensed Matter and Materials Physics
Advanced fuels by field assisted sintering technology:Accident tolerance and fuel performance model
validation
Jie Lian, Tiankai Yao
and
Bowen Gong
Rensselaer Polytechnic Institute, USA
T
he advanced ceramic fuel development program is exploring revolutionary ceramic fuels with the potential of “game-
changing” impact on reactor operation and response to beyond design scenario. Key properties of advanced fuels include
high thermal conductivity, oxidation resistance, high temperature mechanical properties, and thus improved accident
tolerance. Composite ceramic fuels possess distinct advantages to fulfill these key requirements. In addition, the US Nuclear
Energy Advanced Modeling and Simulation (NEAMS) program is developing science-based next generation fuel performance
modeling capability to facilitate the predictive capability of nuclear fuel performance and critical experimental data are needed
to validate the multiscale multiphysics MARMOT models. In this talk, recent advancements of using field-assisted sintering
technologies, specifically spark plasma sintering (SPS), in fabricating advanced fuels and engineering fuel matrix as the
target systems will be reviewed. Different types of concepts are explored for the advanced fuel designs including graphene-
based UO
2
composite fuels, large-grained fuel doped by oxide additive and the high uranium density fuel, and the impact on
design of accident tolerant fuels were discussed. Recent progresses of using SPS in tailoring and engineering fuel matrix as
the target systems for validating MARMOT physics models will also be highlighted. Particularly, monolithic oxide fuels with
tailored microstructure including grain size across multiple length scales from nano-metered to micron-sizes, porosity and
stoichiometry can be sintered. The impacts of tailored microstructure on thermal-mechanical properties and grain growth
kinetics are discussed within the context of the MARMOT modeling.
Recent Publications:
1. Tiankai Yao et al. (2018) Radiation-induced grain subdivision and bubble formation in U3Si
2
at LWR temperature.
Journal of Nuclear Materials. 498:169-175.
2. Y Miao et al. (2017) Bubble morphology in U3Si
2
implanted by high-energy Xe ions at 300°C. Journal of Nuclear
Materials. 495:146-153.
3. Tiankai Yao et al. (2017) Growth and pore coarsening in dense nanocrystalline UO
2+x
fuel pellets. Journal of American
Ceramic Society. 100(6):2651-2658.
4. Yinbin Miao et al. (2017)
In situ
Synchrotron Investigation of Grain Growth Behavior of Nano-Grained UO
2
. Scripta
Materialia. 131:29-32.
5. Yinbin Miao et al. (2016) Correlation between crystallographic orientation and surface faceting in UO
2
. Journal of
Nuclear Materials. 478:176-184.
Biography
Jie Lian received his PhD degree in Nuclear Engineering & Radiological Sciences from University of Michigan in 2003 and his M.S. degree in Materials Science
& Engineering from Tsinghus University at 1998 and Electrical Engineering from University of Michigan in 2001. He obtained his B.S. degree in Materials Science
and Engineering from Yanshan University in China in 1995. He joined the Department of Mechanical, Aerospace & Nuclear Engineering at Rensselaer Polytechnic
Institute as an Assistant Professor in 06/2008 and was promoted to Associate Professor with tenure at July 2013. He was promoted to full professor at July 2017.
lianj@rpi.eduJie Lian et al., Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C2-018