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특허 상세정보

Nuclear fuel rod and method of manufacturing the same

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G21C-003/00   
미국특허분류(USC) 376/417 ; 376/457
출원번호 US-0581200 (1995-12-29)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Antonelli, Terry, Stout, & Kraus, LLP
인용정보 피인용 횟수 : 1  인용 특허 : 16
초록

In a nuclear fuel rod having a zirconium liner and a method of manufacturing the same, the outer surface of a zircaloy cladding tube in which fuel pellets are filled has an oxide film having fine irregularities of which the pitch is 1 .mu.m or less. The fine irregularities are formed by oxidizing the surface in high temperature steam or polishing the surface of the cladding tube. The surface of the fuel rod can effectively trap radioactive substances in the reactor water.

대표
청구항

[ We claim:] [1.] A nuclear fuel rod comprising:fuel pellets;a cylindrical zirconium liner in which the fuel pellets are confined; anda zircaloy cladding tube covering the liner, the zircaloy cladding tube having an outer surface said outer surface having grooves in at least a part of the outer surface, said grooves having a pitch of lam or less.

이 특허에 인용된 특허 (16)

  1. Perkins Richard A. (Kennewick WA) Busch Raymond A. (Benton City WA). Corrosion resistant zirconium liner for nuclear fuel rod cladding. USP1993095247550.
  2. True Donald C. (Brownsburg CAX) Carrire Raymond (Brownsburg CAX). Delay initiator for blasting. USP1989044821646.
  3. Davies John H. (San Jose CA). Hydride damage resistant fuel elements. USP1995075434897.
  4. Rosenbaum Herman S. (Fremont CA) Armijo Joseph S. (Saratoga CA). Inner liners for fuel cladding having zirconium barriers layers. USP1994085341407.
  5. Rosenbaum Herman S. (Fremont CA) Armijo Joseph S. (Saratoga CA). Inner liners for fuel cladding having zirconium barriers layers. USP1996055517541.
  6. Armijo Joseph S. (Saratoga CA) Rosenbaum Herman S. (Fremont CA) Williams Cedric D. (Wilmington NC). Method for making fuel cladding having zirconium barrier layers and inner liners. USP1995015383228.
  7. Catanzarite Vincent Owen (Las Vegas NV). Method of inflating an automobile passenger restraint bag. USP1976063964255.
  8. Adamson Ronald B. (Fremont CA) Lutz Daniel R. (San Jose CA) Armijo Joseph S. (Saratoga CA). Method of preparing fuel cladding having an alloyed zirconium barrier layer. USP1995115469481.
  9. Adamson Ronald B. (Fremont CA) Lutz Daniel R. (San Jose CA) Armijo Joseph S. (Saratoga CA) Rosenbaum Herman S. (Fremont CA). Nuclear fuel cladding having an alloyed zirconium barrier layer. USP1996065524032.
  10. Armijo Joseph Sam (Saratoga CA). Nuclear fuel element. USP1977084045288.
  11. Thompson John R. (San Jose CA) Rowland Trevor C. (Halden NO). Nuclear fuel element. USP1976073969186.
  12. Gordon Gerald M. (Fremont CA) Cowan ; II Robert L. (Livermore CA). Nuclear fuel elements having a composite cladding. USP1977064029545.
  13. Betts Robert E. (Huntsville AL). Squib design. USP1980064208967.
  14. Marlowe Mickey O. (Fremont CA) Armijo Joseph S. (Saratoga CA) Williams Cedric D. (Wilmington NC) Rosenbaum Herman S. (Fremont CA). Two-step process for bonding the elements of a three-layer cladding tube. USP1996055517540.
  15. Adamson Ronald B. (Fremont CA) Potts Gerald A. (San Jose CA). Zircaloy tubing having high resistance to crack propagation. USP1996055519748.
  16. Taylor Dale F. (Schenectady NY). Zirconium alloy fuel cladding. USP1995075436947.