New nuclear fuel-rod cladding could lead to safer power
Jul 25, 2013· Tests of the new cladding material, a ceramic compound called silicon carbide (SiC), are described in a series of papers appearing in the journal Nuclear Technology.
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SILICON-CARBIDE FUEL CLADDING IN OXYGENATED HIGH TEMPERATURE WATER R. ISHIBASHI, S. TANABE, T. KONDO Hitachi-GE Nuclear Energy, Ltd. 3-1-1, Saiwai-cho, Hitachi, Ibaraki-ken 317-0073, Japan S. YAMASHITA, T. FUKAHORI Nuclear Science Research Institute, Japan Atomic Energy Agency 2-4, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
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Toward Safer Nuclear Solutions | Features | Illinois Tech
To answer that question, they have fabried model silicon carbide films and are comparing the physical and chemical properties of those films with that of silicon carbide cladding that was irradiated in a test reactor. They compare the irradiated claddings with others that have been tested under extremes that mimic accident conditions.
Effects of the joining process on the microstructure and
Aug 02, 2020· The joining of liquid-phase sintered SiC (LPS-SiC) ceramics was conducted using spark plasma sintering (SPS), through solid state diffusion bonding, w…
An advanced experimental design for modified burst testing
This report summarizes fiscal year 2018 research activities that were undertaken to evaluate the PCMI-like hoop strain–driven mechanical response of accident tolerant fuel cladding candidates of silicon carbide fiber/silicon carbide matrix composite (SiC/SiC) and …
Focused Workshop on Near-Term Options
Silicon Carbide Cladding (January 2014). MIT-ANP-TR-149 Y. Sukjai, E. Pilat, K. Shirvan, and M.S. Kazimi, Silicon Carbide Performance as Cladding for Advanced Uranium and Thorium Fuels for Light Water Reactors (January 2014). MIT-ANP-TR-148 Bloore DA, Pilat EE, Kazimi MS. Reactor Physics Assessment of Thick Silicon Carbide Clad PWR Fuels (July
SiGA™ SiC Composite | General Atomics
Silicon carbide (SiC) has been used for a wide variety of industrial purposes for more than 100 years. Its high hardness and ability to survive extremely high temperatures make it ideal for demanding appliions such as cutting tools, refractory components, and high-power electrical systems.
Screening of advanced cladding materials and UN-U3Si5 fuel
For advanced cladding options with UO 2 fuel, most of the cladding materials have some reactivity and discharge burn-up penalty (in GWd/t). Silicon carbide is one exception in that the reactor physics performance is predicted to be very similar to zirconium alloy cladding.
Studying silicon carbide for nuclear fuel cladding - NS Energy
Apr 19, 2013· PWR Cores with Silicon Carbide Cladding. Palo Alto, CA : EPRI, 2011. 1022908 (export controlled document). 14. C. Chateau, et al., In situ X-ray microtomography characterization of damage in SiCf/SiC minicomposites, Composites Science and Technology. 2011. 71: p. 916-924. 15. W. Kim, D. Kim, J. Park, Environmental Effect on the Oxidation of CVD
Steady State and Accident Transient Analysis Burning
Two cladding options were considered: a silicon carbide (SiC) matrix of 0.76-mm thickness and Zircaloy of 0.57-mm thickness. As expected, in terms of percentage and total plutonium mass burned, there was a large benefit in using thoria as a matrix compared to urania.
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Jul 09, 2019· silicon-carbide (SiC) cladding and advanced fuel pellets. This is intended to offer significant safety benefits in beyond-design-basis accident scenarios, enabled by SiC’s extremely high melting point and the high thermal conductivity of the advanced fuels.
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A small nuclear reactor with a difference | ZDNet
Apr 09, 2014· To accommodate that heat, GA is developing a silicon carbide ceramic cladding that should be far more tolerant of high temperatures than the metallic cladding -- typically zircaloy -- …
Silicon Carbide - LinkedIn SlideShare
Sep 19, 2012· Production The material formed in the Acheson furnace varies in purity Silicon carbide exists in about 250 crystalline forms The most common is Alpha silicon carbide. It is formed at temperatures > 1700 C4 31.05.2012 5. Properties Low density.
DEMONSTRATION OF ENGINEERED MULTI-LAYERED SIC- SIC
In this cladding appliion, the ability of silicon carbide to retain strength and geometry at high temperatures , and the stable behavior and swelling under irradiation  make it appealing in both normal operation and accident conditions. In order to meet cladding performance requirements, an engineered, -layered cladding multi
Edward Lahoda - Business Profile | Westinghouse Electric
Oct 17, 2019· Edward Lahoda , consulting engineer at Westinghouse Electric Company who has been leading efforts to develop a full-scale silicon carbide fuel cladding technology, said of the successful EWI testing, "This is an exciting development our team is watching closely as SiC-SiC joining is a key technology that is required to deploy silicon carbide cladding."
Silicon Carbide Clad Thoria Plutonia Fuel for Light Water
Silicon Carbide (SiC) cladding, on the other hand, retains its strength to 1600 oC, would not balloon and block flow during an accident, and would not react exothermically with emergency coolant. Even though SiC cladding has been under development for over seven years, it still has several major technology development challenges that must be
"Reactor Physics Assessment of Candidate Accident-Tolerant
In this reactor physics study, we examine the neutronic performance of accident-tolerant fuel (ATF) claddings - Austenitic type 310 stainless steel (310SS), ferritic Fe-20Cr-5Al (FeCrAl), advanced powder metallurgic ferritic (APMT), and silicon carbide (SiC)-based materials - as alternative cladding materials compared with Zircaloy-4 (Zr) cladding. The cores considered in this study use 15%
Silicon cladding for mirror substrates
To reduce the finishing costs of silicon carbide mirror substrates, silicon claddings are applied allowing the surfaces to be more easily diamond turned and polished than the bare chemical vapor deposited (CVD) silicon carbide or bimodal reaction bonded SiC (RB-SiC). deposited amorphous silicon cladding on substrates. Using one mirror as an
Accident-Tolerant Fuel Installed At Byron 2 - News
Sep 11, 2019· One goal of the project included development of lead test rods of silicon carbide cladding with the aim of introducing them to the U.S. commercial sector by 2022. The project is …
Investigation of silver and iodine transport through
Investigation of silver and iodine transport through silicon carbide layers prepared for nuclear fuel element cladding E. Friedland 1,*, N.G. van der Berg 1, J.B. Malherbe 1, J.J. Hancke 2, J. Barry 2, E.Wendler 3, W.Wesch 3 1 Physics Department, University of Pretoria, Pretoria, South Africa 2 PBMR (Pty) Ltd., Pretoria, South Africa 3 Institut für Festkörperphysik, Friedrich-Schiller
Preliminary modelling of crack nucleation and propagation
Silicon carbide fibre in silicon carbide matrix composites (SiC/SiC) are a promising cladding for use in accident tolerant fuels (ATF) in current light water reactor (LWR) designs. However, as they are a radically different material from current metal clads, current thermomechanical simulation methods struggle to accurately predict their behaviour, especially regarding the potential