公开(公告)号：US20160358673A1

公开(公告)日：2016-12-08

申请号：US15225127

申请日：2016-08-01

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC ,  KABUSHIKI KAISHA TOSHIBA

Inventor： PENG XU ,  EDWARD J. LAHODA ,  LARS HALLSTADIUS ,  JOON HYUNG CHOI ,  SHINICHI HIGUICHI ,  FUMIHISA KANO

IPC: G21C3/10 ,  G21C21/02 ,  C04B37/00 ,  G21C3/07

CPC classification number: G21C3/10 ,  C04B37/001 ,  C04B37/005 ,  C04B37/02 ,  C04B37/021 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/666 ,  C04B2237/36 ,  C04B2237/365 ,  C04B2237/38 ,  C04B2237/40 ,  C04B2237/52 ,  C04B2237/765 ,  C04B2237/80 ,  C04B2237/84 ,  G21C3/07 ,  G21C21/02 ,  G21Y2002/302 ,  G21Y2004/301 ,  Y02E30/40

Abstract: A method of providing an end-capped tubular ceramic composite for containing nuclear fuel (34) in a nuclear reactor involves the steps of providing a tubular ceramic composite (40), providing at least one end plug (14, 46, 48), applying (42) the at least one end plug material to the ends of the tubular ceramic composite, applying electrodes to the end plug and tubular ceramic composite and applying current in a plasma sintering means (10, 50) to provide a hermetically sealed tube (52). The invention also provides a sealed tube made by this method.

公开(公告)号：US20200258642A1

公开(公告)日：2020-08-13

申请号：US16273591

申请日：2019-02-12

Applicant: WESTINGHOUSE ELECTRIC COMPANY, LLC

Inventor： PENG XU ,  LU CAI ,  SYLVESTER F. OGUNJI ,  EDWARD J. LAHODA ,  LARS HALLSTADIUS

IPC: G21C3/60 ,  B22F3/105 ,  G21C3/56

Abstract: The present invention relates to nuclear fuel compositions including uranium dioxide with integral fuel burnable absorber, and triuranium disilicide and a composite of uranium mononitride and triuranium disilicide with or without integral fuel burnable absorber, and methods of sintering these compositions. The sintering is conducted using SPS/FAST apparatus and techniques. The sintering time and temperature is reduced using SPS/FAST as compared to conventional sintering methods for nuclear fuel compositions. The nuclear fuel compositions of the present invention are particularly useful in light water reactors.