Pumps – Electrical or getter type
Patent
1973-03-02
1976-10-26
Freeh, William L.
Pumps
Electrical or getter type
2521815, G21c 302
Patent
active
039880753
ABSTRACT:
A method of protecting the cladding of a nuclear fuel element from internal attack and a nuclear fuel element for use in the core of a nuclear reactor are disclosed. The nuclear fuel element has disposed therein an additive of a barium-containing material and the barium-containing material collects reactive gases through chemical reaction or adsorption at temperatures ranging from room temperature up to fuel element plenum temperatures. The additive is located in the plenum of the fuel element and preferably in the form of particles in a hollow container having a multiplicity of gas permeable openings in one portion of the container with the openings being of a size smaller than the size of the particles. The openings permit gases and liquids entering the plenum to contact the particles. The additive is comprised of elemental barium or a barium alloy containing one or more metals in addition to barium such as aluminum, zirconium, nickel, titanium and combinations thereof.
REFERENCES:
patent: 3141830 (1964-07-01), Klepfer
patent: 3214381 (1965-10-01), Baldauf et al.
patent: 3229147 (1966-01-01), Affleck
patent: 3466226 (1969-09-01), Lass
patent: 3519537 (1970-07-01), Ferrari
patent: 3542488 (1970-11-01), Hall
Penrose Richard T.
Thompson John R.
Freeh William L.
General Electric Company
James, Jr. Ivor J.
Laub Sam E.
Turner Samuel E.
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