Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Corrosion or damage prevention
Patent
1995-03-07
1997-02-04
Jordan, Charles T.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Corrosion or damage prevention
376306, 422 11, 422 14, 422 19, G21C 900
Patent
active
056006926
ABSTRACT:
A method for mitigating crack growth on the surface of stainless steel or other alloy components in a water-cooled nuclear reactor wherein a solution or suspension of a compound containing a noble metal is injected into the coolant water along with a reducing agent. The presence of the reducing agent will assist in better deposition of the noble metal, for example, palladium, on metal surfaces, thereby increasing the noble metal loading and also improving the tenacity with which the noble metal is bound onto the metal. The extent of noble metal doping is important in providing a better (lower) ECP response of the metal in the presence of a stoichiometric ratio of H.sub.2 to O.sub.2, which reduces the hydrogen demand considerably. The more tenacious the noble metal is bound to the metal surface, the longer its expected life will be, particularly under in-reactor Situations where the metal surfaces are subjected to a variety of hydrodynamic conditions.
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Derwent Publications Ltd., London, GB; AN 84-059353 & JP-A-59 016 983 (Katayama Kagaku Kogyo Kenkyush), Abstract.
Carroll Chrisman D.
General Electric Company
Jordan Charles T.
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