Method of bonding [electronic resource].

Published:: Columbus, Ohio : Battelle Memorial Institute, 1987.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators:: Battelle Memorial Institute and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

1. A method of making a fuel-containing structure for nuclear reactors, comprising providing an assembly comprising a plurality of fuel units; each fuel unit consisting of a core plate containing thermal-neutron-fissionable material, sheets of cladding metal on its bottom and top surfaces, said cladding sheets being of greater width and length than said core plates whereby recesses are formed at the ends and sides of said core plate, and end pieces and first side pieces of cladding metal of the same thickness as the core plate positioned in said recesses, the assembly further comprising a plurality of second side pieces of cladding metal engaging the cladding sheets so as to space the fuel units from one another, and a plurality of filler plates of an acid-dissolvable nonresilient material whose melting point is above 2000.degree. F., each filler plate being arranged between a pair of said second side pieces and the cladding plates of two adjacent fuel units, the filler plates having the same thickness as the second side pieces; the method further comprising enclosing the entire assembly in an envelope; evacuating the interior of the entire assembly through said envelope; applying inert gas under a pressure of about 10,000 psi to the outside of said envelope while at the same time heating the assembly to a temperature above the flow point of the cladding metal but below the melting point of any material of the assembly, whereby the envelope is pressed against the assembly and integral bonds are formed between plates, sheets, first side pieces, and end pieces and between the sheets and the second side pieces; slowly cooling the assembly to room temperature; removing the envelope; and dissolving the filler plates without attacking the cladding metal.

Report Numbers:

E 1.99:us 4709848
us 4709848

Other Subject(s):

Method Bonding Method Fuel-Containing Structure Nuclear Reactors Comprising Providing Assembly Comprising Plurality Fuel Units Fuel Unit Consisting Core Plate Containing Thermal-Neutron-Fissionable Material Sheets Cladding Metal Bottom Top Surfaces Cladding Sheets Width Length Core Plates Whereby Recesses Formed Core Plate Pieces Pieces Cladding Metal Thickness Core Plate Positioned Recesses Assembly Comprising Plurality Pieces Cladding Metal Engaging Cladding Sheets Space Fuel Units Plurality Filler Plates Acid-Dissolvable Nonresilient Material Melting 2000 Degree Filler Plate Arranged Pair Pieces Cladding Plates Adjacent Fuel Units Filler Plates Thickness Pieces Method Comprising Enclosing Entire Assembly Envelope Evacuating Interior Entire Assembly Envelope Applying Inert Gas Pressure 10 000 Psi Outside Envelope Time Heating Assembly Temperature Flow Cladding Metal Below Melting Material Assembly Whereby Envelope Pressed Assembly Integral Bonds Formed Plates Sheets Pieces Pieces Sheets Pieces Slowly Cooling Assembly Temperature Removing Envelope Dissolving Filler Plates Attacking Cladding Metal Comprising Providing Adjacent Fuel Top Surface Nuclear Reactors Nuclear Reactor Inert Gas Assembly Comprising Fissionable Material Plate Containing Entire Assembly Entire Assembly Plate Positioned Resilient Material Cladding Plates Fuel Unit Fuel Unit Fuel Unit Fuel Unit Unit Consisting Thermal-Neutron-Fissionable Material Adding Metal Adding Metal Adding Metal Adding Metal Adding Metal Time Heat

Note:

Published through SciTech Connect.
12/01/1987.
"us 4709848"
Saller, deceased, Henry A.; Hodge, Edwin S.; Paprocki, Stanley J.; Dayton, Russell W.

Funding Information:

W-7405-ENG-92

View MARC record | catkey: 14988360