公开(公告)号：US20190139654A1

公开(公告)日：2019-05-09

申请号：US16174767

申请日：2018-10-30

Applicant: WESTINGHOUSE ELECTRIC COMPANY, LLC

Inventor： EDWARD J. LAHODA ,  PENG XU ,  Robert L. Oelrich, JR. ,  FRANK A. BOYLAN ,  HEMANT SHAH ,  SUMIT RAY ,  FAUSTO FRANCESCHINI ,  JAVIER E. ROMERO ,  JONATHAN WRIGHT

IPC: G21C3/07 ,  G21C1/04 ,  G21C3/62 ,  G21C7/04 ,  G21C3/04

Abstract: An improved, accident tolerant fuel for use in light water and heavy water reactors is described. The fuel includes a zirconium alloy cladding having a chromium or chromium alloy coating and an optional interlayer of molybdenum, tantalum, tungsten, and niobium between the zirconium alloy cladding and the coating, and fuel pellets formed from U3Si2 or UN and from 100 to 10000 ppm of a boron-containing integral fuel burnable absorber, such as UB2 or ZrB2, either intermixed within the fuel pellet or coated over the surface of the fuel pellet.

公开(公告)号：US20170159186A1

公开(公告)日：2017-06-08

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.