Nuclear component with metal substrate
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsFrédéric Schuster, Fernando Lomello, Francis Maury, Alexandre Michau, Raphaël Boichot, Michel Pons
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Abstract
A nuclear component is a nuclear fuel cladding, a spacer grid, a guide tube a plate fuel or an absorber rod. The nuclear component includes a support containing a substrate based on a metal which may be zirconium or titanium, the support being supported by a protective layer which is composed of a protective material comprising chromium. The nuclear component has improved resistance to oxidation, hydriding and/or migration of undesired material.
Claims20
A nuclear component chosen from a nuclear fuel cladding, a spacer grid, a guide tube, a plate fuel or an absorber rod, comprising:
- i) a support comprising a substrate based on a metal chosen from zirconium, titanium or base alloys thereof;
- and
- ii) at least one protective layer on said support and composed of a protective material comprising chromium, said protective material being chosen from:
- either, if the substrate is titanium-based, a chromium alloy, a carbide of a chromium alloy, a chromium nitride, a chromium carbonitride, a mixed chromium silicon carbide, a mixed chromium silicon nitride, a mixed chromium silicon carbonitride, or mixtures thereof,
- or, if the substrate is zirconium-based, a carbide of a chromium alloy, a chromium carbonitride, a mixed chromium silicon carbide, a mixed chromium silicon nitride, a mixed chromium silicon carbonitride, or mixtures thereof.
Dependencies are inferred from the claim text.