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    NUCLEAR FUEL ELEMENT HAVING A COMPOSITE COATING
    23.
    发明专利
    NUCLEAR FUEL ELEMENT HAVING A COMPOSITE COATING 未知

    公开(公告)号：CA1114077A

    公开(公告)日：1981-12-08

    申请号：CA312786

    申请日：1978-10-05

    Applicant: GEN ELECTRIC

    Inventor： GRUBB WILLARD T ,  KING LAWRENCE H

    IPC: G21C3/20

    Abstract: A nuclear fuel element consisting of a zirconium or ziroonium alloy container and nuclear fuel pellets is provided for use in the core of a nuclear reactor. The zirconium or zirconium alloy container has an inner coating of copper in proximity to the nuclear fuel, and is separated from the zirconium or zirconium alloy by an intermediate zirconium oxide diffusion barrier layer. The copper layer and the intermediate zirconium oxide diffusion barrier of the composite cladding reduce perforations or failure in the zirconium or zirconium alloy cladding substrate caused by stress corrosion cracking or metal embrittlement. Good bonding of the copper to the oxided zirconium and zirconium alloy prevents scaling of copper from the composite cladding during the loading of the fuel element with fuel pellets.

    OXYGEN SENSOR
    24.
    发明专利
    OXYGEN SENSOR 未知

    公开(公告)号：CA998105A

    公开(公告)日：1976-10-05

    申请号：CA186038

    申请日：1973-11-16

    Applicant: GEN ELECTRIC

    Inventor： GRUBB WILLARD T

    IPC: G01N27/404 ,  G01N27/416

    Abstract: An oxygen sensor is described which includes a first electrode of a noble metal, a second electrode of silver with at least a partial layer of silver halide thereon, and an aqueous buffered electrolyte solution containing a halide salt and an oxidizable fuel contacting at least a portion of the electrodes.

    HYDROGEN ION-SELECTIVE SENSOR
    26.
    发明专利
    HYDROGEN ION-SELECTIVE SENSOR 未知

    公开(公告)号：CA952188A

    公开(公告)日：1974-07-30

    申请号：CA132635

    申请日：1972-01-18

    Applicant: GEN ELECTRIC

    Inventor： GRUBB WILLARD T

    IPC: G01N27/333

    Abstract: A hydrogen ion-selective sensor comprises an elongated, flexible tube having opposite open ends and being electrically insulating, a silver-silver halide reference electrode positioned at least partially within the tube, an electrical lead in electrical contact with the reference electrode, a gelled electrolyte solution containing at least one halide salt solution filling the tube and in contact with the silver halide coated portion of the reference electrode and with the opposite end of the tube, a metal tube with an exterior surface of palladium surrounding at least a portion of the first tube, an electrical lead in contact with the metal tube, palladium oxide adhering tightly to at least a portion of the exterior surface of palladium on the metal tube, and electrical insulation surrounding the remaining palladium surface on the metal tube and its associated electrical lead.

    NUCLEAR FUEL ASSEMBLY
    29.
    发明专利
    NUCLEAR FUEL ASSEMBLY 未知

    公开(公告)号：CA1104336A

    公开(公告)日：1981-07-07

    申请号：CA280730

    申请日：1977-06-16

    Applicant: GEN ELECTRIC

    Inventor： GRUBB WILLARD T

    IPC: G21C3/42

    Abstract: Rupture of nuclear fuel cladding resulting from embrittlement by fission product cadmium is prevented by adding the stoichiometrically equivalent amount of material selected from the group consisting of gold, silver, palladium and mixtures thereof; CuFe2O4 and CuTiO3 and mixtures thereof and V2O4 and V2O5 and mixtures thereof, sufficient to inert the cadmium generated during the life of the fuel.

    OXYGEN SENSOR
    30.
    发明专利
    OXYGEN SENSOR 未知

    公开(公告)号：CA985373A

    公开(公告)日：1976-03-09

    申请号：CA182545

    申请日：1973-10-03

    Applicant: GEN ELECTRIC

    Inventor： NIEDRACH LEONARD W ,  GRUBB WILLARD T

    IPC: G01N27/416 ,  G01N27/333 ,  G01N27/404

    Abstract: 1436339 Oxygen sensing electrode GENERAL ELECTRIC CO 24 Oct 1973 [30 Oct 1972] 49555/73 Heading G1N An oxygen sensing electrode comprises a first electrode 11 of corrodible metal in electrical contact with a second electrode 13 of noble metal, a third electrode 15 of silver with a silver halide (other than fluoride) coating 14 surrounding part of the first electrode and insulated therefrom by layer 16, an aqueous electrolyte 18 contacting all three electrodes and an oxygen permeable ion impermeable membrane 19 containing the electrolyte. The silver electrode is protected by insulating coating 17. Electrodes. The corrodible metal electrode is made of molybdenum, tungsten or tantalum or an alloy thereof and preferably has a surface layer 12 of oxide, either naturally occurring or formed by anodization or heating in air. The noble metal may be wound in the form of a spiral wire over the corrodible metal, deposited thereon by electro or electroless plating, evaporation or sputtering either on one side as shown or over the end of electrode 11. Alternatively the noble metal coating may be porous and corrodible metal oxide may be formed in the pores. The silver electrode is a tube with a coating of any silver halide except fluoride. Electrolyte. The electrolyte is preferably a potassium or sodium salt of the same halide as the silver electrode coating buffered to pH5 by borate or phosphate. It may incorporate a gelling agent such as agar, methyl cellulose, ethyl cellulose, guar gum, polyacrylate, polyether or polyamide. Membrane and insulation. The membrane may be formed from silicone rubber, silicone-polycarbonate copolymer or hexafluoropropylenevinylidene fluoride. The insulation, which for the outer sheath 17 may be integral with membrane 19 may be of the above polymers or of crosslinkable polyester resin, pololefin or epoxy resin. It can preferably be applied by coating or dipping.

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