公开(公告)号：US09646729B2

公开(公告)日：2017-05-09

申请号：US13744711

申请日：2013-01-18

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： Edward Jean Lahoda ,  Fausto Franceschini

IPC: G21C21/02 ,  C04B35/01 ,  G21C3/04 ,  B33Y10/00 ,  B29C67/00

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.

公开(公告)号：US09982350B2

公开(公告)日：2018-05-29

申请号：US14956892

申请日：2015-12-02

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： Michael A. Burke ,  Edward J. Lahoda ,  Paolo Ferroni ,  Fausto Franceschini

IPC: C23C24/04

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.

公开(公告)号：US20140203460A1

公开(公告)日：2014-07-24

申请号：US13744711

申请日：2013-01-18

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： Edward Jean Lahoda ,  Fausto Franceschini

IPC: G21C21/02

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。