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公开(公告)号：US20240209493A1
公开(公告)日：2024-06-27
申请号：US18557430
申请日：2022-03-21
发明人： Christophe Heau , Maxime Villard
IPC分类号： C23C14/34 , C23C14/00 , C23C14/02 , C23C14/06 , C23C14/35 , C23C14/50 , G21C3/07 , G21C21/02 , H01J37/32 , H01J37/34
CPC分类号： C23C14/345 , C23C14/0036 , C23C14/025 , C23C14/0641 , C23C14/357 , C23C14/505 , G21C3/07 , G21C21/02 , H01J37/3244 , H01J37/3405 , H01J37/3426 , H01J2237/332
摘要： The invention relates to a method for depositing a chromium-based material from a target onto a metal substrate, by continuous magnetron sputtering, using a plasma generated in a gas.
According to the invention:
the ratio between the flow of gaseous ions directed toward the substrate and the flow of neutral chromium atoms directed toward the substrate is adjusted to between 0.5 and 1.7; and
a bias voltage of between −50V and −100V is applied to the substrates.-
2.发明公开公开(公告)号：US20240145104A1
公开(公告)日：2024-05-02
申请号：US18051925
申请日：2022-11-02
发明人： Edward J. LAHODA
摘要： A cladding for housing enriched nuclear fuel in a nuclear fuel assembly is provided. The cladding comprises a base layer comprised of Zirconium alloy and a coating for the base layer. The base layer has a wall thickness of less than 1 millimeter. The coating comprises a primary layer comprised of Chromium or a Chromium alloy. The primary layer has a thickness in the range of about 5 to about 50 microns. A fuel rod for a nuclear reactor core and a method for producing a fuel rod are also provided.
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公开(公告)号：US11862351B2
公开(公告)日：2024-01-02
申请号：US17117259
申请日：2020-12-10
发明人： Yuriy Aleshin , Joonhyung Choi
摘要： The invention relates to a multi-component cladding for a nuclear fuel rod that includes a combination of ceramic and metal components. More particularly, the invention is directed to a cladding that includes a ceramic composite having a zirconium composition deposited thereon to form a zirconium coated ceramic composite. The ceramic composite includes a ceramic matrix and a plurality of ceramic fibers. The cladding is effective to protect the contents of the cladding structure from exposure to high temperature environments during various load conditions of a nuclear reactor.
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4.发明公开公开(公告)号：US20230352199A1
公开(公告)日：2023-11-02
申请号：US18305831
申请日：2023-04-24
摘要： The invention relates to SiC ceramic matrix composite (CMC) claddings with metallic, ceramic and/or multilayer coatings applied on the outer surface for improved corrosion resistance and hermeticity protection. The coating includes one or more materials selected from FeCrAl, Y, Zr and Al—Cr alloys, Cr2O3, ZrO2 and other oxides, chromium carbides, CrN, Zr- and Y-silicates and silicides. The coatings are applied employing a variety of known surface treatment technologies including cold spray, thermal spray process, physical vapor deposition process (PVD), and slurry coating.
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5.发明公开公开(公告)号：US20230307151A1
公开(公告)日：2023-09-28
申请号：US18327413
申请日：2023-06-01
发明人： Frédéric SCHUSTER , Fernando LOMELLO , Francis MAURY , Alexandre MICHAU , Raphaël BOICHOT , Michel PONS
IPC分类号： G21C21/02 , B32B5/28 , B32B15/04 , C23C16/18 , C23C16/30 , C23C16/448 , C23C16/56 , G21C3/07 , G21C3/20
CPC分类号： G21C21/02 , B32B5/28 , B32B15/04 , C23C16/18 , C23C16/30 , C23C16/448 , C23C16/56 , G21C3/07 , G21C3/20
摘要： Composite nuclear component comprising i) a support containing a substrate comprising a metallic material and a ceramic material (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising chromium; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a DLI-MOCVD deposition process. The composite nuclear component has improved resistance to oxidation and/or migration of undesired material. The invention also relates to the use of the composite nuclear component for combating oxidation and/or degradation of the ceramic material contained in the substrate.
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公开(公告)号：US20230132157A1
公开(公告)日：2023-04-27
申请号：US17451726
申请日：2021-10-21
发明人： Luke C. OLSON , Kathryn E. METZGER , Edward J. LAHODA , Elwyn ROBERTS , Michael R. ICKES , Paolo FERRONI , Denise Adorno LOPES , Luke D. CZERNIAK , Fausto FRANCESCHINI
摘要： Annular nuclear fuel rods are disclosed. The annular nuclear fuel rods include an outer cladding tube made of ceramic composite or cermet composite, an inner cladding tube made of ceramic composite or cermet composite, a nuclear fuel region located between the outer cladding tube and inner cladding tube, and an open channel for liquid coolant to flow.
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公开(公告)号：US11634810B2
公开(公告)日：2023-04-25
申请号：US16337623
申请日：2017-09-28
发明人： Frédéric Schuster , Fernando Lomello , Francis Maury , Alexandre Michau , Raphaël Boichot , Michel Pons
IPC分类号： C23C16/18 , C23C16/02 , C23C16/10 , C23C16/32 , C23C16/34 , C23C16/36 , C23C16/448 , C23C16/56 , G21C3/07 , G21C3/20
摘要： Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising chromium; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD).
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公开(公告)号：US11545272B2
公开(公告)日：2023-01-03
申请号：US17427050
申请日：2020-01-31
申请人： Seaborg ApS
发明人： Troels Schönfeldt , Jimmy Sølvsteen Nielsen , Eirik Eide Pettersen , Andreas Vigand Pedersen , Daniel John Cooper , Ask Emil Løvshall-Jensen
摘要： The present invention relates to a device adapted for producing energy by nuclear fission, the device comprising a core container of a core container material, which core container encloses an inner tubing of an inner tubing material, the inner tubing and/or the core container having an inlet and an outlet, the device further comprising a molten halide salt located in the core container or in the inner tubing, wherein the inner tubing comprises one or more sections consisting of single crystal corundum. The invention further relates to methods of controlling nuclear fission processes using the device and to the use of a corundum tube as a structural material in a nuclear fission device. The invention provides improved economy in molten salt nuclear fission processes.
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公开(公告)号：US11488730B2
公开(公告)日：2022-11-01
申请号：US17065374
申请日：2020-10-07
发明人： Edward J. Lahoda , Peng Xu , Lu Cai
摘要： Disclosed herein is a method comprising coating a fissile, uranium-containing ceramic material with a water-resistant layer, the layer being non-reactive with the fissile, uranium-containing ceramic material. The coating is applied to a surface of the fissile, uranium-containing ceramic material. Also disclosed is a fuel for use in a nuclear reactor.
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公开(公告)号：US20220246314A1
公开(公告)日：2022-08-04
申请号：US17167139
申请日：2021-02-04
申请人： Marshall G. Millett
发明人： Marshall G. Millett
摘要： 210Pb and 227Ac are used in thermal energy production as precursor isotopes, which have been isolated and are allowed to age to the point of secular equilibrium with their progeny, referring to the decay product isotopes in the radioactive decay chain of each. Both 210Pb and 227Ac are in the radioactive decay chains of naturally occurring uranium isotopes, and are each subject to their own natural radioactive decay. While not particularly energetic through their own decay, they (1) are separable from their parent isotopes or may be created in a reactor, (2) have half-lives of around 22 years, and (3) are precursors (natural radioactive decay parents) to subsequent rapid and energetic decay processes. These two isotopes can offer significant advantages as RPS fuel compared to the currently used 238Pu.
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