公开(公告)号：WO2019125604A2

公开(公告)日：2019-06-27

申请号：PCT/US2018/058158

申请日：2018-10-30

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： LAHODA, Edward J. ,  XU, Peng ,  OELRICH, Robert L., Jr. ,  BOYLAN, Frank A. ,  SHAH, Hemant ,  RAY, Sumit ,  FRANCESCHINI, Fausto ,  ROMERO, Javier ,  WRIGHT, Jonathan

Abstract: An improved, accident tolerant fuel for use in light water and heavy water reactors is described. The fuel includes a zirconium alloy cladding (12) having a chromium or chromium alloy coating (18) and an optional interlayer (20) of molybdenum, tantalum, tungsten, and niobium between the zirconium alloy cladding (12) and the coating (18), and fuel pellets (14) formed from U 3 Si 2 or UN and from 100 to 10000 ppm of a boron-containing integral fuel burnable absorber, such as UB 2 or ZrB 2 , either intermixed within the fuel pellet (14) or coated (22) over the surface of the fuel pellet (14).

公开(公告)号：WO2017095552A1

公开(公告)日：2017-06-08

申请号：PCT/US2016/058384

申请日：2016-10-24

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： BURKE, Michael A. ,  LAHODA, Edward J. ,  FERRONI, Paulo ,  FRANCESCHINI, Fausto

IPC: B32B15/14 ,  B32B9/00 ,  B32B9/04 ,  B32B1/08 ,  B32B5/02 ,  B32B15/20

CPC classification number: C23C24/04 ,  C23C28/021 ,  C23C28/027 ,  C23C28/321 ,  C23C28/324 ,  C23C28/341 ,  C23C28/345

Abstract: The invention relates to a multilayer cladding including a combination of ceramic and metallic components. The multilayer coating includes an inner layer, an intermediate layer and an outer layer. The inner layer can form the cladding structure, the intermediate layer can include a ceramic composite or ceramic-containing composite composed of interlocking woven or braided fibers, e.g., fiber tows wrapped on the inner layer to form a woven structure, and a matrix material, and the outer can be composed of metal or metal alloy, such as, in the form of a coating. The multilayer cladding is effective to protect contents of the cladding structure from exposure to high temperature environments.

Abstract translation: 本发明涉及包括陶瓷和金属组分的组合的多层包层。 多层涂层包括内层，中间层和外层。 内层可以形成包层结构，中间层可以包括陶瓷复合材料或包含互锁机织或编织纤维的陶瓷复合材料，例如缠绕在内层上以形成机织结构的纤维丝束和基体材料， 并且外部可以由金属或金属合金构成，例如以涂层的形式。 多层包层可有效保护包层结构的内容免受高温环境的影响。

公开(公告)号：WO2023070067A1

公开(公告)日：2023-04-27

申请号：PCT/US2022/078480

申请日：2022-10-21

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： OLSON, Luke C. ,  METZGER, Kathryn E. ,  LAHODA, Edward J. ,  ROBERTS, Elwyn ,  ICKES, Michael R. ,  FERRONI, Paolo ,  ADORNO-LOLPES, Denise ,  CZERNIAK, Luke D. ,  FRANCESCHINI, Fausto

IPC: G21C3/07 ,  G21C3/04 ,  G21C3/64

Abstract: Annular nuclear fuel rods (100) are disclosed. The annular nuclear fuel rods include an outer cladding tube (102) made of ceramic composite or cermet composite, an inner cladding tube (104) made of ceramic composite or cermet composite, a nuclear fuel region (106) located between the outer cladding tube and inner cladding tube, and an open channel (108) for liquid coolant to flow.

公开(公告)号：WO2021216875A1

公开(公告)日：2021-10-28

申请号：PCT/US2021/028645

申请日：2021-04-22

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： LAHODA, Edward J. ,  FERRONI, Paolo ,  FRANCESCHINI, Fausto

IPC: G21C3/07 ,  G21C21/02

Abstract: Nuclear fuel cladding for fast reactors, assemblies thereof, and methods of manufacture thereof are provided. The nuclear fuel cladding comprises a substrate, a first layer, and a second layer. The substrate a tubular shape. The first layer is deposited over an external surface of the substrate. The first layer comprises a corrosion resistant composition. The second layer is disposed over the first layer. The second layer comprises silicon carbide fibers infiltrated with silicon carbide. The second layer is configured to inhibit outward creep of the substrate.

公开(公告)号：WO2019125604A3

公开(公告)日：2019-06-27

申请号：PCT/US2018/058158

申请日：2018-10-30

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： LAHODA, Edward J. ,  XU, Peng ,  OELRICH, Robert L., Jr. ,  BOYLAN, Frank A. ,  SHAH, Hemant ,  RAY, Sumit ,  FRANCESCHINI, Fausto ,  ROMERO, Javier ,  WRIGHT, Jonathan

IPC: G21C3/60 ,  G21C3/04 ,  G21C9/033

Abstract: An improved, accident tolerant fuel for use in light water and heavy water reactors is described. The fuel includes a zirconium alloy cladding (12) having a chromium or chromium alloy coating (18) and an optional interlayer (20) of molybdenum, tantalum, tungsten, and niobium between the zirconium alloy cladding (12) and the coating (18), and fuel pellets (14) formed from U 3 Si 2 or UN and from 100 to 10000 ppm of a boron-containing integral fuel burnable absorber, such as UB 2 or ZrB 2 , either intermixed within the fuel pellet (14) or coated (22) over the surface of the fuel pellet (14).

公开(公告)号：WO2014133656A2

公开(公告)日：2014-09-04

申请号：PCT/US2013/076334

申请日：2013-12-19

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： LAHODA, Edward Jean ,  FRANCESCHINI, Fausto

CPC classification number: G21C21/02 ,  B29C64/153 ,  B33Y10/00 ,  C04B35/01 ,  C04B2235/32 ,  C04B2235/665 ,  C04B2235/77 ,  G21C2003/045

Abstract: The invention relates to remotely operated laser sintering systems and methods for manufacturing pellets containing highly radioactive elements. The highly radioactive elements can be recovered from used nuclear fuels. The systems and methods of the invention employ a feed composition including one or more highly radioactive elements and a ceramic matrix material. The feed composition is distributed in the form of a layer and sintered by directing at least one laser beam to form a pattern in the layer of the feed composition. The pattern corresponds to the shape of the pellet. Further, the sintering process can be repeated as necessary to achieve a pre-determined pellet height.

Abstract translation: 本发明涉及远程操作的激光烧结系统和用于制造含有高放射性元素的粒子的方法。 高放射性元素可以从二手核燃料中回收。 本发明的系统和方法使用包含一种或多种高放射性元素和陶瓷基质材料的进料组合物。 饲料组合物以层的形式分布并通过引导至少一个激光束在所述饲料组合物的层中形成图案而烧结。 该图案对应于颗粒的形状。 此外，可以根据需要重复烧结过程以获得预定的颗粒高度。