FUEL ELEMENT FOR NUCLEAR REACTORS

Title: FUEL ELEMENT FOR NUCLEAR REACTORS

Full Record
Other Related Research

Abstract

A nuclear reactor fuel element comprising high density ceramic fissionable material enclosed in a tubular cladding of corrosion-resistant material is described. The fissionable material is in the form of segments of a tube which have cooperating tapered interfaces which produce outward radial displacement when the segments are urged axially together. A resilient means is provided within the tubular housing to constantly urge the fuel segments axially. This design maintains the fuel material in tight contacting engagement against the inner surface of the outer cladding tube to eliminate any gap therebetween which may be caused by differential thermal expansion between the fuel material and the material of the tube.

Inventors:: Bassett, C.H.

Issue Date:: 1961-05-01

Research Org.:: Originating Research Org. not identified

OSTI Identifier:: 4014023

Patent Number(s):: 2983663

Assignee:: U.S. Atomic Energy Commission DTIE; NSA-15-017816

NSA Number:: NSA-15-017816

Resource Type:: Patent

Resource Relation:: Other Information: Orig. Receipt Date: 31-DEC-61

Country of Publication:: United States

Language:: English

Subject:: REACTOR TECHNOLOGY; CANNING; CERAMICS; CONFIGURATION; CORROSION; DENSITY; EXPANSION; FUEL ELEMENTS; FUELS; PLANNING; REACTORS; TEMPERATURE; THERMAL STRESSES; TUBES

Citation Formats


                    Bassett, C.H. FUEL ELEMENT FOR NUCLEAR REACTORS.  United States: N. p., 1961. 
        Web.

Copy to clipboard


                    Bassett, C.H. FUEL ELEMENT FOR NUCLEAR REACTORS.  United States.

Copy to clipboard


                    Bassett, C.H. Mon .  
        "FUEL ELEMENT FOR NUCLEAR REACTORS".  United States.

Copy to clipboard


                    
@article{osti_4014023,

  title        = {FUEL ELEMENT FOR NUCLEAR REACTORS},

  author       = {Bassett, C.H.},

  abstractNote = {A nuclear reactor fuel element comprising high density ceramic fissionable material enclosed in a tubular cladding of corrosion-resistant material is described. The fissionable material is in the form of segments of a tube which have cooperating tapered interfaces which produce outward radial displacement when the segments are urged axially together. A resilient means is provided within the tubular housing to constantly urge the fuel segments axially. This design maintains the fuel material in tight contacting engagement against the inner surface of the outer cladding tube to eliminate any gap therebetween which may be caused by differential thermal expansion between the fuel material and the material of the tube.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1961},

  month        = {5}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

FUEL ELEMENT FOR NUCLEAR REACTORS

Patent Bassett, C.H.

A fuel element particularly adapted for use in nuclear reactors of high power density is offered. It has fissionable fuel pellet segments mounted in a tubular housing and defining a central passage in the fuel element. A burnable poison element extends through the central passage, which is designed to contain more poison material at the median portion than at the end portions thereby providing a more uniform hurnup and longer reactivity life.
FABRICATION OF TUBE TYPE FUEL ELEMENT FOR NUCLEAR REACTORS

Patent Loeb, E.; Nicklas, J.H.

A method of fabricating a nuclear reactor fuel element is given. It consists essentially of fixing two tubes in concentric relationship with respect to one another to provide an annulus therebetween, filling the annulus with a fissionablematerial-containing powder, compacting the powder material within the annulus and closing the ends thereof. The powder material is further compacted by swaging the inner surface of the inner tube to increase its diameter while maintaining the original size of the outer tube. This process results in reduced fabrication costs of powdered fissionable material type fuel elements and a substantial reduction in the peak coremore »« less
FUEL ELEMENT FOR NUCLEAR REACTORS

Patent Bassett, C.H.

Nuclear reactor fuel elements of the type in which the flssionsble material is in ceramic form, such as uranium dioxide, are described. The fuel element is comprised of elongated inner and outer concentric spaced tubular members providing an annular space therebetween for receiving the fissionable material, the annular space being closed at both ends and the inner tube being open at both ends. The fuel is in the form of compressed pellets of ceramic fissionsble material having the configuration of split bushings formed with wedge surfaces and arranged in seriated inner and outer concentric groups which are urged against themore »« less
Process for surface treatment of zirconium-containing cladding materials for fuel element or other components for nuclear reactors

Patent Videm, K.G.; Lunde, L.R.; Kooyman, H.H.

A process for the surface treatment of zirconium-base cladding materials for fuel elements or other components for nuclear reactors is described. The treatment includes pickling the cladding material in a fluoride-containing bath, and then applying a protective coating through oxidation to the pickled cladding material. The fluoride-containing contaminants which remain on the surface of the cladding material during pickling are removed or rendered harmless by anodic oxidation. (auth)
Process for making a fuel element for high temperature nuclear reactors

Patent Bujas, R.; Ringot, C.

The fuel element comprises a central fuel portion or compact of generally annular shape formed by a stack of annular segments and surrounded externally and internally by a jacket. The jacket is formed by at least one sheet of felt or fabric of carbon or graphite, the sheet being bonded to the fuel portion by means of pyrocarbon obtained by pyrolysis of hydrocarbons in gaseous phase. The fuel element is mainly intended for use in high-temperature reactors. (Official Gazette)

Similar Records