Title: Duplex accident tolerant coating for nuclear fuel rods

Abstract

A method is described for forming duplex layers including an interlayer and a corrosion resistant boundary layer on a nuclear fuel rod cladding tube for use in a water cooled nuclear reactor. The method includes forming, by thermal deposition or physical vapor deposition, on the exterior of a substrate, an inner interlayer with Mo, Ta, W or Nb or other particles, and forming, by thermal deposition or physical vapor deposition, on the interlayer, an outer corrosion resistant layer with particles selected from the group consisting of Cr, a Cr alloy, and combinations thereof. The interlayer prevents eutectic formation between the corrosion resistant layer and the substrate.

Inventors:

Lahoda, Edward J.; Xu, Peng; Oelrich, Jr., Robert L.; Sridharan, Kumar; Maier, Brianne; Johnson, Greg

Issue Date:

2021-06-22

Research Org.:

Westinghouse Electric Co., LLC, Cranberry Township, PA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1824099

Patent Number(s):

11043308

Application Number:

15/722,167

Assignee:

Westinghouse Electric Company LLC (Cranberry Township, PA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

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B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

B32B15/01 - all layers being exclusively metallic {

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C16/00 - Alloys based on zirconium
C22C27/06 - Alloys based on chromium

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C14/16 - on metallic substrates or on substrates of boron or silicon
C23C14/34 - Sputtering
C23C24/08 - by application of heat or pressure and heat
C23C24/087 - {Coating with metal alloys or metal elements only}
C23C28/021 - {including at least one metal alloy layer}
C23C28/023 - {only coatings of metal elements only}

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

G21C21/02 - Manufacture of fuel elements or breeder elements contained in non-active casings
G21C3/07 - characterised by their material, e.g. alloys
G21C3/20 - with coating on fuel or on inside of casing

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E30/30 - Nuclear fission reactors

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DOE Contract Number:  

NE0008222

Resource Type:

Patent

Resource Relation:

Patent File Date: 10/02/2017

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS