公开(公告)号：US10515728B2

公开(公告)日：2019-12-24

申请号：US15706972

申请日：2017-09-18

Applicant: WESTINGHOUSE ELECTRIC COMPANY, LLC

Inventor： Edward J. Lahoda ,  Frank A. Boylan

IPC: G21C3/62 ,  G21C9/00 ,  G21C3/04

Abstract: An improved, accident tolerant fuel for use in light water and lead fast reactors is described. The fuel includes a ceramic cladding, such as a multi-layered silicon carbide cladding, and fuel pellets formed from U15N and from 100 to 10000 ppm of a boron-containing integral fuel burnable absorber, such as UB2 or ZrB2.

公开(公告)号：US12183474B2

公开(公告)日：2024-12-31

申请号：US17454196

申请日：2021-11-09

Applicant: Westinghouse Electric Company LLC

Inventor： Edward J. Lahoda ,  Frank A. Boylan ,  Ho Q. Lam ,  Mitchell E. Nissley ,  Raymond E. Schneider ,  Robert L. Oelrich ,  Sumit Ray ,  Radu Pomirleanu ,  Zeses Karoutas ,  Michael J. Hone

IPC: G21C7/10 ,  G21C7/24 ,  C23C30/00 ,  G21C1/08 ,  G21C3/07 ,  G21C3/328 ,  G21C11/08

Abstract: A control rod for a nuclear fuel assembly is described herein that includes a neutron absorbing material having a melting point greater than 1500° C. that does not form a eutectic with a melting point less than 1500° C., and may further include a cladding material having a melting point greater than 1500° C. The cladding material is selected from the group consisting of silicon carbide, zirconium, a zirconium alloy, tungsten, and molybdenum. The absorbing material is selected from the group consisting of Gd2O3, Ir, B4C, Re, and Hf. The metal cladding or the absorbing material may be coated with an anti-oxidation coating of Cr with or without a Nb intermediate layer.

公开(公告)号：US11289213B2

公开(公告)日：2022-03-29

申请号：US16051712

申请日：2018-08-01

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： Edward J. Lahoda ,  Frank A. Boylan ,  Ho Q. Lam ,  Mitchell E. Nissley ,  Raymond E. Schneider ,  Robert L. Oelrich ,  Sumit Ray ,  Radu Pomirleanu ,  Zeses Karoutas ,  Michael J. Hone

IPC: G21C7/24 ,  G21C7/10 ,  G21C3/07 ,  G21C1/08 ,  G21C11/08 ,  G21C3/328 ,  C23C30/00

Abstract: A control rod for a nuclear fuel assembly is described herein that includes a neutron absorbing material having a melting point greater than 1500° C. that does not form a eutectic with a melting point less than 1500° C., and may further include a cladding material having a melting point greater than 1500° C. The cladding material is selected from the group consisting of silicon carbide, zirconium, a zirconium alloy, tungsten, and molybdenum. The absorbing material is selected from the group consisting of Gd2O3, Ir, B4C, Re, and Hf. The metal cladding or the absorbing material may be coated with an anti-oxidation coating of Cr with or without a Nb intermediate layer.